80_FR_20045 80 FR 19974 - Request for Information: Updating and Improving the DOE Methodology for Assessing the Cost-Effectiveness of Building Energy Codes

80 FR 19974 - Request for Information: Updating and Improving the DOE Methodology for Assessing the Cost-Effectiveness of Building Energy Codes

DEPARTMENT OF ENERGY
Office of Energy Efficiency and Renewable Energy

Federal Register Volume 80, Issue 71 (April 14, 2015)

Page Range19974-19979
FR Document2015-08601

The U.S. Department of Energy (DOE) is seeking input on how it may update and improve its methodology for assessing the cost- effectiveness (which includes an energy savings assessment) of residential and commercial building energy codes. DOE is directed by statute to provide technical assistance to states to support the implementation of model building energy codes. As part of this role, DOE conducts national and state-level analysis to assess the cost- effectiveness of building energy codes and proposed changes. DOE is interested in feedback on its analysis methodology, preferred sources of cost data, and parameter assumptions surrounding its cost- effectiveness assessment. In addition, DOE is seeking information on the general costs, benefits, and economic impacts associated with building energy codes. This notice identifies several areas where interested parties may provide suggestions, comments, and other information.

Federal Register, Volume 80 Issue 71 (Tuesday, April 14, 2015)
[Federal Register Volume 80, Number 71 (Tuesday, April 14, 2015)]
[Notices]
[Pages 19974-19979]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-08601]


-----------------------------------------------------------------------

DEPARTMENT OF ENERGY

Office of Energy Efficiency and Renewable Energy

[Docket Number EERE-2015-BT-BC-0001]


Request for Information: Updating and Improving the DOE 
Methodology for Assessing the Cost-Effectiveness of Building Energy 
Codes

AGENCY: Office of Energy Efficiency and Renewable Energy, Department of 
Energy.

ACTION: Request for information.

-----------------------------------------------------------------------

SUMMARY: The U.S. Department of Energy (DOE) is seeking input on how it 
may update and improve its methodology for assessing the cost-
effectiveness (which includes an energy savings assessment) of 
residential and commercial building energy codes. DOE is directed by 
statute to provide technical assistance to states to support the 
implementation of model building energy codes. As part of this role, 
DOE conducts national and state-level analysis to assess the cost-
effectiveness of building energy codes and proposed changes. DOE is 
interested in feedback on its analysis methodology, preferred sources 
of cost data, and parameter assumptions surrounding its cost-
effectiveness assessment. In addition, DOE is seeking information on 
the general costs, benefits, and economic impacts associated with 
building energy codes. This notice identifies several areas where 
interested parties may provide suggestions, comments, and other 
information.

DATES: Written comments and information are requested by May 14, 2015.

ADDRESSES: Comments must identify the docket number EERE-2015-BT-BC-
0001 and may be submitted using any of the following methods:
    1. Regulations.gov: http://www.regulations.gov/#!docketDetail;D=EERE-2015-BT-BC-0001. Follow the instructions for 
submitting comments.
    2. Email: [email protected]. Include EERE-2015-BT-
BC-0001 in the subject line of the message.
    3. Postal Mail: Ms. Brenda Edwards; U.S. Department of Energy, 
Building Technologies Office EE-5B, 1000 Independence Avenue SW., 
Washington, DC 20585; Phone: (202) 586-2945. Please submit one signed 
paper original.
    Further instructions, including the use of topic identifiers, are 
provided in the Public Participation section of this notice. Comments 
submitted in response to this notice will become a matter of public 
records and will be made publicly available.
    Public Docket: The docket, which includes notices published in the 
Federal Register and public comments received, is available for review 
at Regulations.gov. All documents in the docket are listed in the 
Regulations.gov index. However, some documents listed in the index, 
such as those containing information exempt from public disclosure, may 
not be publicly available.
    A link to the docket Web page can be found under Public 
Participation at: http://www.energycodes.gov/events. This Web page will 
also contain a link to the docket for this notice on Regulations.gov. 
The Regulations.gov site will contain instructions on how to access all 
documents, including public comments, in the docket.
    For further information on how to submit a comment, review comments 
received, or otherwise participate in the public comment process, 
contact Ms. Brenda Edwards by phone at (202) 586-2945 or email: 
[email protected].

FOR FURTHER INFORMATION CONTACT:
    Jeremiah Williams; U.S. Department of Energy, Office of Energy 
Efficiency and Renewable Energy, Building

[[Page 19975]]

Technologies Office EE-5B, 1000 Independence Avenue SW., Washington, DC 
20585; Phone: (202) 287-1941, Email: [email protected].
    For legal matters, contact: Kavita Vaidyanathan; U.S. Department of 
Energy, Office of the General Counsel, Forrestal Building, Mailstop GC-
33, 1000 Independence Ave SW., Washington, DC 20585; Phone: (202) 586-
0669, Email: [email protected].

SUPPLEMENTARY INFORMATION:

Table of Contents

I. Authority and Background
II. Analysis of Residential Buildings
    A. Changes and Issues Related to Estimating Energy Savings of 
Code Changes
    1. Prototypes
    2. Weather Locations
    B. Changes and Issues Related to Estimating the Cost-
effectiveness of Code Changes
III. Analysis of Commercial Buildings
    A. Changes and Issues Related to Estimating Energy Savings of 
Code Changes
    B. Changes and Issues Related to Estimating the Cost-
Effectiveness of Code Changes
    1. Property Tax Impact
IV. Common Issues for Both Residential and Commercial Buildings
    A. Addressing Code Changes With Multiple Approaches to 
Compliance
    B. Economic Parameters and Inputs
V. Public Participation
    A. Submission of Information
    B. General Issues on Which DOE Seeks Information
    C. Residential Issues on Which DOE Seeks Information
    D. Commercial Issues on Which DOE Seeks Information

I. Authority and Background

    Section 307(b) of the Energy Conservation and Production Act (ECPA, 
Pub. L. 102-486), as amended, directs DOE to support voluntary building 
energy codes by periodically reviewing the technical and economic basis 
of the voluntary building energy codes and to ``seek adoption of all 
technologically feasible and economically justified energy efficiency 
measures; and . . . otherwise participate in any industry process for 
review and modification of such codes'' (42 U.S.C. 6836(b)(2) and (3)). 
DOE participates in the development of the International Energy 
Conservation Code (IECC), maintained by the International Code Council 
(ICC) for residential and commercial buildings, and in the development 
of Standard 90.1, maintained by the American Society of Heating, 
Refrigerating and Air-Conditioning Engineers (ASHRAE) for commercial 
buildings.
    This Request for Information (RFI) seeks public input on revisions 
to DOE's established methodologies for assessing the cost-effectiveness 
of proposed changes to residential and commercial building energy codes 
and new editions of such codes. DOE has previously expressed interest 
in receiving information surrounding the costs and benefits associated 
with building energy codes (78 FR 47677 and 79 FR 27778). The current 
request for information will ensure that DOE is able to maintain 
appropriate means of evaluating the cost-effectiveness of building 
energy codes, including the selection of appropriate data sources and 
methods to analyze the economic impacts associated with code updates. 
This notice is intended to communicate relevant updates to the general 
public and solicit feedback on the specific analysis parameters subject 
to revision. In addition, this request provides a broader opportunity 
for input on DOE's designated methods. DOE uses these methodologies to 
inform its participation in the update processes of the IECC, ASHRAE 
Standard 90.1, and other building energy codes--both in developing 
proposals and in assessing the proposals of others, when necessary. DOE 
also uses these methodologies in assessing the cost-effectiveness of 
new code editions. DOE evaluates energy codes and code proposals based 
on life-cycle cost analysis, accounting for energy savings, incremental 
investment for energy efficiency measures, and other economic impacts.
    The value of future savings and costs are discounted to a present 
value, with improvements deemed cost-effective when the net savings is 
positive. Assessing the cost-effectiveness of a proposed code change or 
a newly revised code involves three primary steps:
    1. Estimating the energy savings of the changed code provision(s),
    2. estimating the first cost of the changed provision(s), and
    3. calculating the corresponding economic impacts of the changed 
provision(s).
    These steps are detailed in the established residential and 
commercial methodologies, as referenced later in this RFI (see the 
Analysis of Residential Buildings and Analysis of Commercial Buildings 
sections of this notice). The DOE methodologies for residential and 
commercial buildings have the same life-cycle cost basis and parallel 
one another closely. However, because there is variation in the 
economic criteria associated with different types of commercial 
building ownership, up to three scenarios may be used for commercial 
cost-effective analysis:
     Scenario 1 (also referred to as the Publicly-Owned 
Method): Life-cycle cost analysis method representing government or 
public ownership (without borrowing or taxes).
     Scenario 2: (also referred to as the Privately-Owned 
Method): Life-cycle cost analysis method representing private or 
business ownership (includes loan and tax impacts).
     Scenario 3: (also referred to as the ASHRAE 90.1 Scalar 
Method \1\): Represents a pre-tax private investment point of view, and 
uses economic inputs established by the ASHRAE 90.1 Standing Standard 
Project Committee (SSPC).
---------------------------------------------------------------------------

    \1\ McBride M.F., ``Development of Economic Scalar Ratios for 
ASHRAE Standard 90.1 R,'' in Proceedings of Thermal Performance of 
the Exterior Envelopes of Buildings VI, ASHRAE (presented at the 
Thermal Performance of the Exterior Envelopes of Buildings VI, 
ASHRAE, 1995), http://consensus.fsu.edu/FBC/2010-Florida-Energy-Code/901_Scalar_Ratio_Development.pdf.
---------------------------------------------------------------------------

    For the commercial methodology DOE is seeking public input only on 
the method and sources for parameters of Scenario 2, as the method and 
parameters for Scenario 1 are established by federal regulation, and 
the method and parameters for Scenario 3 are established by the ASHRAE 
90.1 SSPC. DOE intends to continue to rely on Scenarios 1 and 3 since 
they are required for federal projects and addenda to ASHRAE Standard 
90.1, respectively.
    In preparation for this RFI, DOE reviewed the established 
residential and commercial methodologies and is proposing revisions. 
These revisions are limited to minor clarifications and attempts to 
streamline certain portions; the overall methodology remains unchanged 
in terms of procedure and content. For brevity, only the proposed 
revisions to the methodologies are discussed here; the entire 
residential methodology and commercial methodology are available for 
review, as referenced below (see Analysis for Residential Buildings and 
Analysis for Commercial Buildings sections of this notice) and are not 
published in full within the current RFI.

II. Analysis of Residential Buildings

    The focus of this section of the RFI is residential buildings, 
which DOE defines in a manner consistent with the IECC--one- and two-
family dwellings, townhouses, and low-rise (three stories or less above 
grade) multifamily residential buildings. DOE previously established a 
methodology for assessing

[[Page 19976]]

the cost-effectiveness of changes made to the residential building 
energy code through an RFI process published in the Federal Register on 
September 13, 2011 (76 FR 56413). DOE took into consideration the 
information it received during the public comment period, and published 
the final methodology in 2012.\2\ This methodology, hereafter referred 
to as the ``established residential methodology,'' was used for 
assessing cost-effectiveness of the 2009 and 2012 IECC compared with 
the 2006 IECC at the national and state levels,\3\ and in analyzing 
cost-effectiveness of code change proposals developed by DOE for 
submission to the ICC in the development of the 2015 IECC.\4\
---------------------------------------------------------------------------

    \2\ Taylor, T, N. Fernandez, and R. Lucas. 2012. Methodology for 
Evaluating Cost-effectiveness of Residential Energy Code Changes. 
DOE EERE Building Energy Codes Program. Available at: 
www.energycodes.gov/sites/default/files/documents/residential_methodology.pdf.
    \3\ See: www.energycodes.gov/development/residential/iecc_analysis.
    \4\ See: www.energycodes.gov/residential-code-change-proposals-2015-iecc.
---------------------------------------------------------------------------

A. Changes and Issues Related to Estimating Energy Savings of Code 
Changes

    The established methodology for estimating energy savings of 
residential code changes remains unchanged except for the following 
proposed revisions:
1. Prototypes
    Single-family and multifamily residential building prototypes are 
used to assess the energy and cost impact of residential energy 
codes.\5\ Minor revisions are proposed to prototype building 
characteristics to better align them with current construction 
practices or simplify the energy modeling process. These 
characteristics are summarized in are summarized in are summarized in 
Table II.1 and Table II.2 with proposed changes indicated in italics 
(with the unchanged characteristics included to provide context).
---------------------------------------------------------------------------

    \5\ Mendon, V., and Z.T. Taylor. 2014. Development of 
Residential Prototype Building Models and Analysis System for Large-
Scale Energy Efficiency Studies Using EnergyPlus. 2014 ASHRAE/IBPSA-
USA Building Simulation Conference. Atlanta, GA.
---------------------------------------------------------------------------

    The first proposed change to the DOE residential building 
prototypes surrounds the assumption for ``area below roofs/ceilings'' 
for both single- and multifamily buildings. DOE proposes to modify the 
former value of 70 percent with attic (and the remaining 30 percent 
cathedral) to a revised value of 100 percent with attic. This change is 
intended to simplify the energy modeling process. The second proposed 
change focuses on the ``internal gains'' assumption for the single-
family prototype, which is revised from a value of 91,436 Btu/day to 
87,332 Btu/day. This change updates the previous assumption to align 
with Section 405 of the 2015 IECC. The third and final change modifies 
the ``window area'' assumption for the multifamily prototype, revised 
from a value of 14 percent relative to conditioned floor area to 23 
percent relative to exterior wall area not including breezeway walls. 
Note that the revised exterior wall area metric is the target of the 
change (i.e., not the actual quantity of window area), and is 
considered to better reflect typical multifamily building construction.
    DOE is seeking public input on these proposed revisions (Topic 
R01). Note that the non-revised content in the tables remains unchanged 
from the established methodology.

           Table II.1--Single-Family Prototype Characteristics
------------------------------------------------------------------------
             Parameter                           Assumption
------------------------------------------------------------------------
Conditioned floor area............  2,400 ft\2\ (plus 1,200 ft\2\ of
                                     conditioned basement, where
                                     applicable).
Footprint and height..............  30-ft-by-40 ft, two-story, 8.5-ft-
                                     high ceilings.
Area above unconditioned space....  1,200 ft\2\.
Area below roofs/ceilings.........  1,200 ft\2\, 100% with attic.
Perimeter length..................  140 ft.
Gross exterior wall area..........  2,380 ft\2\.
Window area (relative to            Fifteen percent equally distributed
 conditioned floor area).            to the four cardinal directions (or
                                     as required to evaluate glazing-
                                     specific code changes).
Door area.........................  42 ft\2\.
Internal gains....................  87,332 Btu/day.
Heating system....................  Natural gas furnace, heat pump,
                                     electric furnace, or oil-fired
                                     furnace.
Cooling system....................  Central electric air conditioning.
Water heating.....................  Natural gas, or as required to
                                     evaluate domestic hot water-
                                     specific code changes.
Foundation type...................  Slab-on-grade, vented crawlspace,
                                     heated basement and unheated
                                     basement.
------------------------------------------------------------------------
Note: Proposed changes indicated in italics.


            Table II.2--Multifamily Prototype Characteristics
------------------------------------------------------------------------
             Parameter                           Assumption
------------------------------------------------------------------------
Conditioned floor area............  1,200 ft \2\ per unit, or 21,600 ft
                                     \2\ total (plus 1,200 ft \2\ of
                                     conditioned basement on ground-
                                     floor units, where applicable).
Footprint and height..............  Each unit is 40 ft wide by 30 ft
                                     deep, with 8.5-ft-high ceilings.
                                     The building footprint is 120 ft by
                                     65 ft.
Area above unconditioned space....  1,200 ft\2\ on ground-floor units.
Wall area adjacent to               None.
 unconditioned space.
Area below roofs/ceilings.........  1,200 ft \2\, 100% with attic on top-
                                     floor units.
Perimeter length..................  370 ft (total for the building), 10
                                     ft of which borders the open
                                     breezeway.
Gross wall area...................  5,100 ft \2\ per story, 2,040 ft \2\
                                     of which faces the open breezeway
                                     (15,300 ft \2\ total).
Window area (relative to exterior   23%.
 wall area not including breezeway
 walls).
Door area.........................  21 ft\2\ per unit (378 ft\2\ total)
Internal gains....................  54,668 Btu/day per unit (984,024 Btu/
                                     day total)

[[Page 19977]]

 
Heating system....................  Natural gas furnace, heat pump,
                                     electric furnace, or oil-fired
                                     furnace.
Cooling system....................  Central electric air conditioning.
Water heating.....................  Natural gas, or as required to
                                     evaluate domestic hot water-
                                     specific code changes.
Foundation type...................  Slab-on-grade, vented crawlspace,
                                     heated basement and unheated
                                     basement.
------------------------------------------------------------------------
Note: Proposed changes indicated in italics.

2. Weather Locations
    DOE will continue to draw from a set of 119 climate locations 
comprised of one representative location for each climate zone and 
moisture regime within each state. The overall set of climate locations 
are described in the established residential methodology. However, DOE 
is proposing to apply fewer climate locations when a subset of 
locations is sufficient for specific analyses, such as DOE has applied 
in the past as part of its analysis surrounding commercial buildings.
    In conducting national analyses, which tend to be less sensitive to 
regional variations in climates, DOE intends to utilize one 
representative weather location per climate zone, including a separate 
location for each moisture regime. This approach is intended to 
conserve time and computing resources in situations where regional 
variation does not significantly impact overall findings. In addition, 
DOE may apply this approach in performing analyses that are preliminary 
or limited in nature, such as in analyzing individual code change 
proposals. The simulation results will be weighted to the national 
level using weighting factors from the established methodology rolled 
up to the national climate zone level for consistency between the two 
schemes. For aggregating results across foundation, heating system and 
building types the method will be similar to the current approach, but 
with fewer discrete weather locations.
    A similar approach will be followed for state-level or other 
regional analyses, with DOE utilizing those climate locations (from the 
overall set) that are representative of the geographic area being 
analyzed. This selection will often include a number of distinct 
locations that adequately capture regional variation within the scope 
of the analysis, such as within a target state. In addition, the 
selection of locations in conducting state-level analyses may be 
modified based on what is deemed credible by the target audience. For 
analyses targeting a particular climate zone, results will be weighted 
using the regime weight within the climate zone.
    The weather locations and resulting overall location construction 
weights for the national climate zones are summarized in Table II.3. 
DOE is seeking public input on the appropriateness of using fewer 
weather stations for national and preliminary analysis (Topic R02).

                  Table II.3--Climate Locations for the National Scheme With Weighting Factors
----------------------------------------------------------------------------------------------------------------
                                                     Representative location               Regime
                                         ----------------------------------------------    weight      Overall
   Climate zone       Moisture regime                                                   within zone    location
                                                  State                   City              (%)       weight (%)
----------------------------------------------------------------------------------------------------------------
1................  Tropical.............  Hawaii...............  Honolulu.............           42          0.5
                   Moist................  Florida..............  Miami................           58          0.7
2................  Dry..................  Arizona..............  Phoenix..............           10          2.1
                   Moist................  Texas................  Houston..............           90         18.4
3................  Dry..................  Texas................  El Paso..............           30          7.9
                   Marine...............  California...........  San Francisco........            5          1.3
                   Moist................  Tennessee............  Memphis..............           65         16.9
4................  Dry..................  New Mexico...........  Albuquerque..........            2          0.6
                   Marine...............  Oregon...............  Salem................           15          3.4
                   Moist................  Maryland.............  Baltimore............           83         19.2
5................  Dry..................  Idaho................  Boise................           23          4.9
                   Moist................  Illinois.............  Chicago..............           77         16.0
6................  Dry..................  Montana..............  Helena...............           18          1.2
                   Moist................  Vermont..............  Burlington...........           82          5.6
7................  .....................  Minnesota............  Duluth...............          100          1.3
8................  .....................  Alaska...............  Fairbanks............          100          0.0
----------------------------------------------------------------------------------------------------------------

B. Changes and Issues Related to Estimating the Cost-Effectiveness of 
Code Changes

    DOE noticed typographical errors in two equations published in the 
established methodology where a term was not reproduced as intended. 
The corrected Equations 1 and 2 are included below (missing term is 
underlined):

[[Page 19978]]

[GRAPHIC] [TIFF OMITTED] TN14AP15.004

    DOE is not seeking public input on the changes to Equations 1 and 
2.

III. Analysis of Commercial Buildings

    The focus of this section of the RFI is commercial buildings, which 
DOE defines in a manner consistent with both ASHRAE Standard 90.1 and 
the IECC--buildings except one- and two-family dwellings, townhouses, 
and low-rise (three stories or less above grade) multifamily 
residential buildings. DOE has developed a consistent and transparent 
methodology for assessing the cost-effectiveness of commercial code 
change proposals and for assessing the cost-effectiveness of new code 
versions.\6\ This methodology, hereafter referred to as the 
``established commercial methodology,'' was used for assessing cost-
effectiveness of ASHRAE Standards 90.1-2010 and 90.1-2013 and in 
supplementing cost-effectiveness criteria of certain code change 
proposals developed by DOE for submission to the ICC in the development 
of the 2015 IECC.\7\
---------------------------------------------------------------------------

    \6\ Hart, R, and B. Liu. 2015. ``Methodology for Evaluating 
Cost-effectiveness of Commercial Energy Code Changes.'' DOE EERE 
Building Energy Codes Program. Available at: www.energycodes.gov/development/commercial/methodology.
    \7\ See: www.energycodes.gov/development/commercial/2015IECC.
---------------------------------------------------------------------------

A. Changes and Issues Related to Estimating Energy Savings of Code 
Changes

    ASHRAE SSPC 90.1 has updated its representative cities based on 
changes in ASHRAE Standard 169-2013 (Climatic Data for Building Design 
Standards), and has adopted the revised climate zones into ASHRAE 
Standard 90.1. DOE has noted this change in the code, itself, as 
affecting DOE analysis. However, DOE is not seeking public comment on 
the use of the new representative cities for its analysis.

B. Changes and Issues Related to Estimating the Cost-Effectiveness of 
Code Changes

1. Property Tax Impact
    The proposed commercial methodology includes an adjustment to the 
life-cycle cost for the impact of property taxes. This is a change from 
the established commercial method that was used for the state cost-
effectiveness analyses of ASHRAE Standard 90.1-2010 and the ASHRAE 
Standard 90.1-2013 analysis.\8\ Under the revised commercial 
methodology, the property tax impact is proposed to be included in 
Scenario 2 life-cycle cost as follows:
---------------------------------------------------------------------------

    \8\ See: http://www.energycodes.gov/development/commercial/cost_effectiveness.
[GRAPHIC] [TIFF OMITTED] TN14AP15.005

---------------------------------------------------------------------------
Where:

PV(P) = present value of property tax net of federal income tax 
benefit
C = incremental first costs
RP = property tax rate
Dr = real discount rate
L = period of analysis
RTF = income tax rate, federal

    This proposed change from prior commercial cost-effectiveness 
practice to include property tax impacts makes the commercial method 
more robust and further consistent with the residential method. DOE is 
seeking public input on the appropriateness of the addition of property 
tax impact analysis to Scenario 2 of the cost-effectiveness 
methodology. (Topic C01).

IV. Common Issues for Both Residential and Commercial Buildings

    There are common issues for both residential and commercial 
buildings related to cost estimate development when there are multiple 
paths to compliance and regarding the preferred sources of economic and 
other parameters.

A. Addressing Code Changes With Multiple Approaches to Compliance

    As discussed in both methodologies, DOE anticipates that some new 
code provisions may have significantly different first costs depending 
on unrelated aesthetic choices or exceptions and flexibility options in 
the code. For example, a requirement for window shading could be met 
with interior blinds, electro-chromatic windows, static exterior 
shades, or an active tracking exterior shading system. Or, a reasonable 
window-to-wall ratio may be set as a baseline for standard efficiency 
heating, ventilation, and cooling (HVAC) equipment, and exceeding that 
ratio may require more expensive higher efficiency HVAC equipment. It 
has been suggested, for example, that a future code may replace or 
supplement independent prescriptive requirements with options expected 
to provide similar energy cost and performance.
    For any of these situations with multiple compliance paths, DOE 
intends to focus on the least-cost approach deemed to be effective and 
meet the code requirement rather than include the cost of niche or 
optional technology. For example, if there are multiple options 
available to comply with the code, and if one widely applicable and 
accepted option is found to be cost-effective, then the approach would 
be deemed cost-effective. This is because there is one cost-effective 
path through the code, and if a higher cost option is chosen, that is 
the developer or designer's choice.
    Furthermore, some new code provisions may come with no specific 
construction changes at all, but rather be expressed purely as a 
performance requirement. DOE intends to evaluate any such code changes 
case-by-case and will search the research literature or conduct new 
analyses to determine the reasonable set of construction changes

[[Page 19979]]

that could be expected to emerge in response to such new requirements.
    DOE is seeking public input on the appropriateness of assessing the 
first cost where a new or changed requirement can be met by multiple 
construction approaches with varying cost implications (Topic G01).

B. Economic Parameters and Inputs

    The data sources and procedures for establishing economic 
parameters required for calculating the metrics described above are 
described in detail in the established residential methodology and 
established commercial methodology (see Analysis for Residential 
Buildings and Analysis for Commercial Buildings sections of this 
notice). DOE will use the most recent values of these parameters 
available at the time an analysis is begun. DOE is seeking public input 
on whether this approach can be improved through use of data sources 
not included in the established commercial and residential 
methodologies (Topic G02).

V. Public Participation

A. Submission of Information

    DOE will accept information in response to this notice under the 
timeline provided in the DATES section of this notice. Comments should 
be submitted by one of the methods listed in the ADDRESSES section of 
this notice. Comments should include the topic identifier (e.g., G01, 
R01, R02, C01, C02, etc.) in the subject line and throughout the 
submission, as applicable, to aid in associating comments with the 
requested topics. In summary, DOE is particularly interested in 
receiving information on the following issues/topics:

B. General Issues on Which DOE Seeks Information

G01. The appropriateness of assessing the first cost where a new or 
changed requirement can be met by multiple construction approaches with 
varying cost implications
G02. Suggestions for preferred cost and economic parameter data sources

C. Residential Issues on Which DOE Seeks Information

R01. The appropriateness of revisions to the prototypes used for 
residential analysis
R02. The appropriateness of using fewer weather stations for national 
and preliminary analysis
R03. Other comments on DOE's residential cost-effectiveness methodology 
for code change analysis

D. Commercial Issues on Which DOE Seeks Information

C01. The appropriateness of the addition of property tax impact 
analysis to the Scenario 2 cost-effectiveness methodology
C02. Other comments on DOE's commercial cost-effectiveness methodology 
for code change analysis

    Issued in Washington, DC, on April 7, 2015.
David Cohan,
Manager, Building Energy Codes Program, Building Technologies Office, 
Energy Efficiency and Renewable Energy.
[FR Doc. 2015-08601 Filed 4-13-15; 8:45 am]
 BILLING CODE 6450-01-P



                                                    19974                          Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices

                                                    III. Public Participation in the                        communications was published on                       effectiveness assessment. In addition,
                                                    Development of DOE Proposals                            January 21, 2009 (74 FR 4685).4 As                    DOE is seeking information on the
                                                                                                            described in the guidance, individuals                general costs, benefits, and economic
                                                    A. Stakeholder Input
                                                                                                            or entities that communicate with DOE                 impacts associated with building energy
                                                       The public will have the following                   or its contractors prior to the code                  codes. This notice identifies several
                                                    opportunities to provide DOE with                       hearing must provide a memorandum                     areas where interested parties may
                                                    input:                                                  summarizing the communication, which                  provide suggestions, comments, and
                                                       1. Comments on posted proposals and                  will be included in the public docket                 other information.
                                                       2. Participation in public meetings.                 consistent with the ex parte guidance.                DATES: Written comments and
                                                       Public Comment on DOE Proposals:                       During each ICC hearing process, DOE
                                                    DOE intends to make information                                                                               information are requested by May 14,
                                                                                                            will maintain a published Web site                    2015.
                                                    available to the general public as it                   containing submitted DOE proposals,
                                                    comes available. As information will be                                                                       ADDRESSES: Comments must identify the
                                                                                                            which will also contain a link directed
                                                    updated continually throughout the                                                                            docket number EERE–2015–BT–BC–
                                                                                                            to the Web site and materials
                                                    process, interested parties are urged to                                                                      0001 and may be submitted using any
                                                                                                            maintained by the ICC. DOE recognizes
                                                    closely monitor the DOE Building                                                                              of the following methods:
                                                                                                            that the code development and public                     1. Regulations.gov: http://www.
                                                    Energy Codes Program Web page and                       hearing process is based on processes
                                                    stakeholder mailing lists to remain                                                                           regulations.gov/#!docketDetail;D=EERE-
                                                                                                            established by the ICC, which do not                  2015-BT-BC-0001. Follow the
                                                    current with DOE activities. As                         constitute ex parte communications,
                                                    materials will be posted over an                                                                              instructions for submitting comments.
                                                                                                            and therefore, any discussions of the                    2. Email: BCMethodology2015
                                                    extended period of time, the Web site                   process at code hearings do not need to
                                                    will provide additional instructions on                                                                       BC0001@ee.doe.gov. Include EERE–
                                                                                                            follow the guidance.                                  2015–BT–BC–0001 in the subject line of
                                                    submitting comments on DOE
                                                    proposals, including associated                           Issued in Washington, DC, on April 7,               the message.
                                                                                                            2015.                                                    3. Postal Mail: Ms. Brenda Edwards;
                                                    comment deadlines.
                                                       DOE will publish a notice in the                     David Cohan,                                          U.S. Department of Energy, Building
                                                    Federal Register when its draft                         Manager, Building Energy Codes Program,               Technologies Office EE–5B, 1000
                                                    proposals and supporting materials                      Building Technologies Office, Energy                  Independence Avenue SW.,
                                                    begin to become available for public                    Efficiency and Renewable Energy.                      Washington, DC 20585; Phone: (202)
                                                    review. Note that DOE will not provide                  [FR Doc. 2015–08599 Filed 4–13–15; 8:45 am]           586–2945. Please submit one signed
                                                    responses to individual public                          BILLING CODE 6450–01–P                                paper original.
                                                    comments, but will consider all                                                                                  Further instructions, including the
                                                    information received, and will                                                                                use of topic identifiers, are provided in
                                                    incorporate all appropriate information                 DEPARTMENT OF ENERGY                                  the Public Participation section of this
                                                    into updated versions of its proposals.                                                                       notice. Comments submitted in
                                                                                                            Office of Energy Efficiency and                       response to this notice will become a
                                                    All DOE proposals and supporting                        Renewable Energy
                                                    documentation will be made available                                                                          matter of public records and will be
                                                    for review at http://                                   [Docket Number EERE–2015–BT–BC–0001]                  made publicly available.
                                                    www.energycodes.gov/development.                                                                                 Public Docket: The docket, which
                                                       Participation in Public Meetings. DOE                Request for Information: Updating and                 includes notices published in the
                                                    intends to convene one or more public                   Improving the DOE Methodology for                     Federal Register and public comments
                                                    meetings during each code cycle to                      Assessing the Cost-Effectiveness of                   received, is available for review at
                                                    present its proposals and supporting                    Building Energy Codes                                 Regulations.gov. All documents in the
                                                    information, and to receive questions                                                                         docket are listed in the Regulations.gov
                                                                                                            AGENCY:  Office of Energy Efficiency and              index. However, some documents listed
                                                    and feedback from interested and                        Renewable Energy, Department of
                                                    affected stakeholders. Such meetings                                                                          in the index, such as those containing
                                                                                                            Energy.                                               information exempt from public
                                                    will also be used to encourage and                      ACTION: Request for information.
                                                    facilitate the free exchange of ideas,                                                                        disclosure, may not be publicly
                                                    with the intent of improving proposals                  SUMMARY:   The U.S. Department of                     available.
                                                    from all parties. DOE will both moderate                Energy (DOE) is seeking input on how                     A link to the docket Web page can be
                                                    and participate in these meetings. Note                 it may update and improve its                         found under Public Participation at:
                                                    that DOE will not attempt to bring                      methodology for assessing the cost-                   http://www.energycodes.gov/events.
                                                    stakeholders to a consensus; rather                     effectiveness (which includes an energy               This Web page will also contain a link
                                                    DOE’s role will be to increase                          savings assessment) of residential and                to the docket for this notice on
                                                    understanding of the concepts                           commercial building energy codes. DOE                 Regulations.gov. The Regulations.gov
                                                    discussed. These meetings will also be                  is directed by statute to provide                     site will contain instructions on how to
                                                    announced in the Federal Register.                      technical assistance to states to support             access all documents, including public
                                                                                                            the implementation of model building                  comments, in the docket.
                                                    B. Ex-Parte Guidance                                                                                             For further information on how to
                                                                                                            energy codes. As part of this role, DOE
                                                      DOE anticipates that it or its                                                                              submit a comment, review comments
                                                                                                            conducts national and state-level
                                                    contractors may be contacted regarding                                                                        received, or otherwise participate in the
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                                                                            analysis to assess the cost-effectiveness
                                                    code concepts, ideas or change                                                                                public comment process, contact Ms.
                                                                                                            of building energy codes and proposed
                                                    proposals prior to and during the code                                                                        Brenda Edwards by phone at (202) 586–
                                                                                                            changes. DOE is interested in feedback
                                                    hearings. While DOE code change                                                                               2945 or email: Brenda.Edwards@
                                                                                                            on its analysis methodology, preferred
                                                    proposals submitted to the ICC are not                                                                        ee.doe.gov.
                                                                                                            sources of cost data, and parameter
                                                    regulations, DOE will follow its ex parte               assumptions surrounding its cost-                     FOR FURTHER INFORMATION CONTACT:
                                                    communication policy for such                                                                                    Jeremiah Williams; U.S. Department
                                                    communications prior to the code                          4 See http://energy.gov/gc/downloads/guidance-      of Energy, Office of Energy Efficiency
                                                    hearings. DOE guidance on ex parte                      ex-parte-communications.                              and Renewable Energy, Building


                                               VerDate Sep<11>2014   17:42 Apr 13, 2015   Jkt 235001   PO 00000   Frm 00020   Fmt 4703   Sfmt 4703   E:\FR\FM\14APN1.SGM   14APN1


                                                                                   Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices                                                  19975

                                                    Technologies Office EE–5B, 1000                         Conditioning Engineers (ASHRAE) for                   commercial building ownership, up to
                                                    Independence Avenue SW.,                                commercial buildings.                                 three scenarios may be used for
                                                    Washington, DC 20585; Phone: (202)                         This Request for Information (RFI)                 commercial cost-effective analysis:
                                                    287–1941, Email: jeremiah.williams@                     seeks public input on revisions to DOE’s                 • Scenario 1 (also referred to as the
                                                    ee.doe.gov.                                             established methodologies for assessing               Publicly-Owned Method): Life-cycle cost
                                                      For legal matters, contact: Kavita                    the cost-effectiveness of proposed                    analysis method representing
                                                    Vaidyanathan; U.S. Department of                        changes to residential and commercial                 government or public ownership
                                                    Energy, Office of the General Counsel,                  building energy codes and new editions                (without borrowing or taxes).
                                                    Forrestal Building, Mailstop GC–33,                     of such codes. DOE has previously                        • Scenario 2: (also referred to as the
                                                    1000 Independence Ave SW.,                              expressed interest in receiving                       Privately-Owned Method): Life-cycle
                                                    Washington, DC 20585; Phone: (202)                      information surrounding the costs and                 cost analysis method representing
                                                    586–0669, Email: kavita.vaidyanathan@                   benefits associated with building energy              private or business ownership (includes
                                                    hq.doe.gov.                                             codes (78 FR 47677 and 79 FR 27778).                  loan and tax impacts).
                                                                                                            The current request for information will                 • Scenario 3: (also referred to as the
                                                    SUPPLEMENTARY INFORMATION:
                                                                                                            ensure that DOE is able to maintain                   ASHRAE 90.1 Scalar Method 1):
                                                    Table of Contents                                       appropriate means of evaluating the                   Represents a pre-tax private investment
                                                                                                            cost-effectiveness of building energy                 point of view, and uses economic inputs
                                                    I. Authority and Background
                                                    II. Analysis of Residential Buildings                   codes, including the selection of                     established by the ASHRAE 90.1
                                                       A. Changes and Issues Related to                     appropriate data sources and methods to               Standing Standard Project Committee
                                                          Estimating Energy Savings of Code                 analyze the economic impacts                          (SSPC).
                                                          Changes                                           associated with code updates. This                       For the commercial methodology DOE
                                                       1. Prototypes                                        notice is intended to communicate                     is seeking public input only on the
                                                       2. Weather Locations                                 relevant updates to the general public                method and sources for parameters of
                                                       B. Changes and Issues Related to                     and solicit feedback on the specific                  Scenario 2, as the method and
                                                          Estimating the Cost-effectiveness of Code         analysis parameters subject to revision.              parameters for Scenario 1 are
                                                          Changes                                           In addition, this request provides a
                                                    III. Analysis of Commercial Buildings
                                                                                                                                                                  established by federal regulation, and
                                                                                                            broader opportunity for input on DOE’s                the method and parameters for Scenario
                                                       A. Changes and Issues Related to
                                                          Estimating Energy Savings of Code                 designated methods. DOE uses these                    3 are established by the ASHRAE 90.1
                                                          Changes                                           methodologies to inform its                           SSPC. DOE intends to continue to rely
                                                       B. Changes and Issues Related to                     participation in the update processes of              on Scenarios 1 and 3 since they are
                                                          Estimating the Cost-Effectiveness of Code         the IECC, ASHRAE Standard 90.1, and                   required for federal projects and
                                                          Changes                                           other building energy codes—both in                   addenda to ASHRAE Standard 90.1,
                                                       1. Property Tax Impact                               developing proposals and in assessing                 respectively.
                                                    IV. Common Issues for Both Residential and              the proposals of others, when necessary.                 In preparation for this RFI, DOE
                                                          Commercial Buildings                              DOE also uses these methodologies in                  reviewed the established residential and
                                                       A. Addressing Code Changes With                      assessing the cost-effectiveness of new
                                                          Multiple Approaches to Compliance                                                                       commercial methodologies and is
                                                       B. Economic Parameters and Inputs
                                                                                                            code editions. DOE evaluates energy                   proposing revisions. These revisions are
                                                    V. Public Participation                                 codes and code proposals based on life-               limited to minor clarifications and
                                                       A. Submission of Information                         cycle cost analysis, accounting for                   attempts to streamline certain portions;
                                                       B. General Issues on Which DOE Seeks                 energy savings, incremental investment                the overall methodology remains
                                                          Information                                       for energy efficiency measures, and                   unchanged in terms of procedure and
                                                       C. Residential Issues on Which DOE Seeks             other economic impacts.                               content. For brevity, only the proposed
                                                          Information                                          The value of future savings and costs              revisions to the methodologies are
                                                       D. Commercial Issues on Which DOE Seeks              are discounted to a present value, with               discussed here; the entire residential
                                                          Information                                       improvements deemed cost-effective                    methodology and commercial
                                                    I. Authority and Background                             when the net savings is positive.                     methodology are available for review, as
                                                                                                            Assessing the cost-effectiveness of a                 referenced below (see Analysis for
                                                       Section 307(b) of the Energy                         proposed code change or a newly
                                                    Conservation and Production Act                                                                               Residential Buildings and Analysis for
                                                                                                            revised code involves three primary                   Commercial Buildings sections of this
                                                    (ECPA, Pub. L. 102–486), as amended,                    steps:
                                                    directs DOE to support voluntary                                                                              notice) and are not published in full
                                                                                                               1. Estimating the energy savings of the            within the current RFI.
                                                    building energy codes by periodically                   changed code provision(s),
                                                    reviewing the technical and economic                       2. estimating the first cost of the                II. Analysis of Residential Buildings
                                                    basis of the voluntary building energy                  changed provision(s), and                               The focus of this section of the RFI is
                                                    codes and to ‘‘seek adoption of all                        3. calculating the corresponding                   residential buildings, which DOE
                                                    technologically feasible and                            economic impacts of the changed                       defines in a manner consistent with the
                                                    economically justified energy efficiency                provision(s).                                         IECC—one- and two-family dwellings,
                                                    measures; and . . . otherwise                              These steps are detailed in the
                                                                                                                                                                  townhouses, and low-rise (three stories
                                                    participate in any industry process for                 established residential and commercial
                                                                                                                                                                  or less above grade) multifamily
                                                    review and modification of such codes’’                 methodologies, as referenced later in
                                                                                                                                                                  residential buildings. DOE previously
                                                    (42 U.S.C. 6836(b)(2) and (3)). DOE                     this RFI (see the Analysis of Residential
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                                                                                                                                  established a methodology for assessing
                                                    participates in the development of the                  Buildings and Analysis of Commercial
                                                    International Energy Conservation Code                  Buildings sections of this notice). The                 1 McBride M.F., ‘‘Development of Economic
                                                    (IECC), maintained by the International                 DOE methodologies for residential and                 Scalar Ratios for ASHRAE Standard 90.1 R,’’ in
                                                    Code Council (ICC) for residential and                  commercial buildings have the same                    Proceedings of Thermal Performance of the Exterior
                                                    commercial buildings, and in the                        life-cycle cost basis and parallel one                Envelopes of Buildings VI, ASHRAE (presented at
                                                                                                                                                                  the Thermal Performance of the Exterior Envelopes
                                                    development of Standard 90.1,                           another closely. However, because there               of Buildings VI, ASHRAE, 1995), http://
                                                    maintained by the American Society of                   is variation in the economic criteria                 consensus.fsu.edu/FBC/2010-Florida-Energy-Code/
                                                    Heating, Refrigerating and Air-                         associated with different types of                    901_Scalar_Ratio_Development.pdf.



                                               VerDate Sep<11>2014   17:42 Apr 13, 2015   Jkt 235001   PO 00000   Frm 00021   Fmt 4703   Sfmt 4703   E:\FR\FM\14APN1.SGM   14APN1


                                                    19976                                 Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices

                                                    the cost-effectiveness of changes made                          1. Prototypes                                         modeling process. The second proposed
                                                    to the residential building energy code                                                                               change focuses on the ‘‘internal gains’’
                                                                                                                       Single-family and multifamily
                                                    through an RFI process published in the                                                                               assumption for the single-family
                                                                                                                    residential building prototypes are used
                                                    Federal Register on September 13, 2011                                                                                prototype, which is revised from a value
                                                                                                                    to assess the energy and cost impact of
                                                    (76 FR 56413). DOE took into                                                                                          of 91,436 Btu/day to 87,332 Btu/day.
                                                    consideration the information it                                residential energy codes.5 Minor
                                                                                                                    revisions are proposed to prototype                   This change updates the previous
                                                    received during the public comment                                                                                    assumption to align with Section 405 of
                                                    period, and published the final                                 building characteristics to better align
                                                                                                                    them with current construction                        the 2015 IECC. The third and final
                                                    methodology in 2012.2 This                                                                                            change modifies the ‘‘window area’’
                                                    methodology, hereafter referred to as the                       practices or simplify the energy
                                                                                                                    modeling process. These characteristics               assumption for the multifamily
                                                    ‘‘established residential methodology,’’
                                                                                                                    are summarized in are summarized in                   prototype, revised from a value of 14
                                                    was used for assessing cost-effectiveness
                                                    of the 2009 and 2012 IECC compared                              are summarized in Table II.1 and Table                percent relative to conditioned floor
                                                    with the 2006 IECC at the national and                          II.2 with proposed changes indicated in               area to 23 percent relative to exterior
                                                    state levels,3 and in analyzing cost-                           italics (with the unchanged                           wall area not including breezeway
                                                    effectiveness of code change proposals                          characteristics included to provide                   walls. Note that the revised exterior wall
                                                    developed by DOE for submission to the                          context).                                             area metric is the target of the change
                                                    ICC in the development of the 2015                                 The first proposed change to the DOE               (i.e., not the actual quantity of window
                                                    IECC.4                                                          residential building prototypes                       area), and is considered to better reflect
                                                                                                                    surrounds the assumption for ‘‘area                   typical multifamily building
                                                    A. Changes and Issues Related to                                below roofs/ceilings’’ for both single-               construction.
                                                    Estimating Energy Savings of Code                               and multifamily buildings. DOE
                                                    Changes                                                                                                                  DOE is seeking public input on these
                                                                                                                    proposes to modify the former value of
                                                                                                                                                                          proposed revisions (Topic R01). Note
                                                      The established methodology for                               70 percent with attic (and the remaining
                                                    estimating energy savings of residential                        30 percent cathedral) to a revised value              that the non-revised content in the
                                                    code changes remains unchanged except                           of 100 percent with attic. This change is             tables remains unchanged from the
                                                    for the following proposed revisions:                           intended to simplify the energy                       established methodology.

                                                                                                         TABLE II.1—SINGLE-FAMILY PROTOTYPE CHARACTERISTICS
                                                                     Parameter                                                                               Assumption

                                                    Conditioned floor area ....................          2,400 ft2 (plus 1,200 ft2 of conditioned basement, where applicable).
                                                    Footprint and height ........................        30-ft-by-40 ft, two-story, 8.5-ft-high ceilings.
                                                    Area above unconditioned space ...                   1,200 ft2.
                                                    Area below roofs/ceilings ................           1,200 ft2, 100% with attic.
                                                    Perimeter length ..............................      140 ft.
                                                    Gross exterior wall area ..................          2,380 ft2.
                                                    Window area (relative to condi-                      Fifteen percent equally distributed to the four cardinal directions (or as required to evaluate glazing-specific
                                                       tioned floor area).                                  code changes).
                                                    Door area ........................................   42 ft2.
                                                    Internal gains ..................................    87,332 Btu/day.
                                                    Heating system ...............................       Natural gas furnace, heat pump, electric furnace, or oil-fired furnace.
                                                    Cooling system ...............................       Central electric air conditioning.
                                                    Water heating ..................................     Natural gas, or as required to evaluate domestic hot water-specific code changes.
                                                    Foundation type ..............................       Slab-on-grade, vented crawlspace, heated basement and unheated basement.
                                                       Note: Proposed changes indicated in italics.

                                                                                                         TABLE II.2—MULTIFAMILY PROTOTYPE CHARACTERISTICS
                                                                     Parameter                                                                               Assumption

                                                    Conditioned floor area ....................          1,200 ft 2 per unit, or 21,600 ft 2 total (plus 1,200 ft 2 of conditioned basement on ground-floor units, where
                                                                                                           applicable).
                                                    Footprint and height ........................        Each unit is 40 ft wide by 30 ft deep, with 8.5-ft-high ceilings. The building footprint is 120 ft by 65 ft.
                                                    Area above unconditioned space ...                   1,200 ft2 on ground-floor units.
                                                    Wall area adjacent to unconditioned                  None.
                                                       space.
                                                    Area below roofs/ceilings ................           1,200 ft 2, 100% with attic on top-floor units.
                                                    Perimeter length ..............................      370 ft (total for the building), 10 ft of which borders the open breezeway.
                                                    Gross wall area ...............................      5,100 ft 2 per story, 2,040 ft 2 of which faces the open breezeway (15,300 ft 2 total).
                                                    Window area (relative to exterior                    23%.
                                                       wall area not including breeze-
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                       way walls).
                                                    Door area ........................................   21 ft2 per unit (378 ft2 total)
                                                    Internal gains ..................................    54,668 Btu/day per unit (984,024 Btu/day total)

                                                      2 Taylor, T, N. Fernandez, and R. Lucas. 2012.                  3 See: www.energycodes.gov/development/               5 Mendon, V., and Z.T. Taylor. 2014.

                                                    Methodology for Evaluating Cost-effectiveness of                residential/iecc_analysis.                            Development of Residential Prototype Building
                                                    Residential Energy Code Changes. DOE EERE                         4 See: www.energycodes.gov/residential-code-        Models and Analysis System for Large-Scale Energy
                                                    Building Energy Codes Program. Available at:                    change-proposals-2015-iecc.                           Efficiency Studies Using EnergyPlus. 2014
                                                    www.energycodes.gov/sites/default/files/                                                                              ASHRAE/IBPSA–USA Building Simulation
                                                    documents/residential_methodology.pdf.                                                                                Conference. Atlanta, GA.



                                               VerDate Sep<11>2014       17:42 Apr 13, 2015      Jkt 235001   PO 00000   Frm 00022   Fmt 4703   Sfmt 4703   E:\FR\FM\14APN1.SGM   14APN1


                                                                                              Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices                                                                                  19977

                                                                                                   TABLE II.2—MULTIFAMILY PROTOTYPE CHARACTERISTICS—Continued
                                                                      Parameter                                                                                                        Assumption

                                                    Heating system ...............................             Natural gas furnace, heat pump, electric furnace, or oil-fired furnace.
                                                    Cooling system ...............................             Central electric air conditioning.
                                                    Water heating ..................................           Natural gas, or as required to evaluate domestic hot water-specific code changes.
                                                    Foundation type ..............................             Slab-on-grade, vented crawlspace, heated basement and unheated basement.
                                                       Note: Proposed changes indicated in italics.


                                                    2. Weather Locations                                                       intended to conserve time and                                              locations (from the overall set) that are
                                                                                                                               computing resources in situations where                                    representative of the geographic area
                                                       DOE will continue to draw from a set                                    regional variation does not significantly                                  being analyzed. This selection will often
                                                    of 119 climate locations comprised of                                      impact overall findings. In addition,                                      include a number of distinct locations
                                                    one representative location for each                                       DOE may apply this approach in                                             that adequately capture regional
                                                    climate zone and moisture regime                                           performing analyses that are                                               variation within the scope of the
                                                    within each state. The overall set of                                      preliminary or limited in nature, such as                                  analysis, such as within a target state. In
                                                    climate locations are described in the                                     in analyzing individual code change                                        addition, the selection of locations in
                                                    established residential methodology.                                       proposals. The simulation results will                                     conducting state-level analyses may be
                                                    However, DOE is proposing to apply                                         be weighted to the national level using                                    modified based on what is deemed
                                                    fewer climate locations when a subset of                                   weighting factors from the established                                     credible by the target audience. For
                                                    locations is sufficient for specific                                       methodology rolled up to the national                                      analyses targeting a particular climate
                                                    analyses, such as DOE has applied in                                       climate zone level for consistency                                         zone, results will be weighted using the
                                                    the past as part of its analysis                                           between the two schemes. For                                               regime weight within the climate zone.
                                                    surrounding commercial buildings.                                          aggregating results across foundation,                                       The weather locations and resulting
                                                       In conducting national analyses,                                        heating system and building types the                                      overall location construction weights for
                                                    which tend to be less sensitive to                                         method will be similar to the current                                      the national climate zones are
                                                    regional variations in climates, DOE                                       approach, but with fewer discrete                                          summarized in Table II.3. DOE is
                                                    intends to utilize one representative                                      weather locations.                                                         seeking public input on the
                                                    weather location per climate zone,                                            A similar approach will be followed                                     appropriateness of using fewer weather
                                                    including a separate location for each                                     for state-level or other regional analyses,                                stations for national and preliminary
                                                    moisture regime. This approach is                                          with DOE utilizing those climate                                           analysis (Topic R02).

                                                                                TABLE II.3—CLIMATE LOCATIONS FOR THE NATIONAL SCHEME WITH WEIGHTING FACTORS
                                                                                                                                                               Representative location                                                  Regime        Overall
                                                     Climate                                                                                                                                                                             weight      location
                                                                                  Moisture regime
                                                      zone                                                                                                                                                                             within zone    weight
                                                                                                                                                  State                                                 City                               (%)         (%)

                                                    1 ............   Tropical .......................................        Hawaii .........................................      Honolulu .....................................              42           0.5
                                                                     Moist ...........................................       Florida .........................................     Miami ..........................................            58           0.7
                                                    2 ............   Dry ..............................................      Arizona .......................................       Phoenix .......................................             10           2.1
                                                                     Moist ...........................................       Texas ..........................................      Houston ......................................              90          18.4
                                                    3 ............   Dry ..............................................      Texas ..........................................      El Paso .......................................             30           7.9
                                                                     Marine .........................................        California ....................................       San Francisco ............................                   5           1.3
                                                                     Moist ...........................................       Tennessee ..................................          Memphis .....................................               65          16.9
                                                    4 ............   Dry ..............................................      New Mexico ................................           Albuquerque ...............................                  2           0.6
                                                                     Marine .........................................        Oregon ........................................       Salem .........................................             15           3.4
                                                                     Moist ...........................................       Maryland .....................................        Baltimore ....................................              83          19.2
                                                    5 ............   Dry ..............................................      Idaho ...........................................     Boise ...........................................           23           4.9
                                                                     Moist ...........................................       Illinois ..........................................   Chicago ......................................              77          16.0
                                                    6 ............   Dry ..............................................      Montana ......................................        Helena ........................................             18           1.2
                                                                     Moist ...........................................       Vermont ......................................        Burlington ...................................              82           5.6
                                                    7 ............   .....................................................   Minnesota ...................................         Duluth .........................................           100           1.3
                                                    8 ............   .....................................................   Alaska .........................................      Fairbanks ....................................             100           0.0



                                                    B. Changes and Issues Related to                                           established methodology where a term
                                                    Estimating the Cost-Effectiveness of                                       was not reproduced as intended. The
                                                    Code Changes                                                               corrected Equations 1 and 2 are
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                      DOE noticed typographical errors in                                      included below (missing term is
                                                    two equations published in the                                             underlined):




                                               VerDate Sep<11>2014        17:42 Apr 13, 2015          Jkt 235001       PO 00000       Frm 00023        Fmt 4703       Sfmt 4703      E:\FR\FM\14APN1.SGM             14APN1


                                                    19978                          Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices




                                                      DOE is not seeking public input on                    assessing cost-effectiveness of ASHRAE                comment on the use of the new
                                                    the changes to Equations 1 and 2.                       Standards 90.1–2010 and 90.1–2013 and                 representative cities for its analysis.
                                                                                                            in supplementing cost-effectiveness
                                                    III. Analysis of Commercial Buildings                                                                         B. Changes and Issues Related to
                                                                                                            criteria of certain code change proposals
                                                       The focus of this section of the RFI is              developed by DOE for submission to the                Estimating the Cost-Effectiveness of
                                                    commercial buildings, which DOE                         ICC in the development of the 2015                    Code Changes
                                                    defines in a manner consistent with                     IECC.7                                                1. Property Tax Impact
                                                    both ASHRAE Standard 90.1 and the
                                                    IECC—buildings except one- and two-                     A. Changes and Issues Related to                        The proposed commercial
                                                    family dwellings, townhouses, and low-                  Estimating Energy Savings of Code                     methodology includes an adjustment to
                                                    rise (three stories or less above grade)                Changes                                               the life-cycle cost for the impact of
                                                    multifamily residential buildings. DOE                     ASHRAE SSPC 90.1 has updated its                   property taxes. This is a change from the
                                                    has developed a consistent and                          representative cities based on changes                established commercial method that
                                                    transparent methodology for assessing                   in ASHRAE Standard 169–2013                           was used for the state cost-effectiveness
                                                    the cost-effectiveness of commercial                    (Climatic Data for Building Design                    analyses of ASHRAE Standard 90.1–
                                                    code change proposals and for assessing                 Standards), and has adopted the revised               2010 and the ASHRAE Standard 90.1–
                                                    the cost-effectiveness of new code                      climate zones into ASHRAE Standard                    2013 analysis.8 Under the revised
                                                    versions.6 This methodology, hereafter                  90.1. DOE has noted this change in the                commercial methodology, the property
                                                    referred to as the ‘‘established                        code, itself, as affecting DOE analysis.              tax impact is proposed to be included in
                                                    commercial methodology,’’ was used for                  However, DOE is not seeking public                    Scenario 2 life-cycle cost as follows:




                                                    Where:                                                  sources of economic and other                         provide similar energy cost and
                                                    PV(P) = present value of property tax net of            parameters.                                           performance.
                                                         federal income tax benefit                                                                                 For any of these situations with
                                                    C = incremental first costs
                                                                                                            A. Addressing Code Changes With                       multiple compliance paths, DOE
                                                    RP = property tax rate                                  Multiple Approaches to Compliance                     intends to focus on the least-cost
                                                    Dr = real discount rate                                    As discussed in both methodologies,                approach deemed to be effective and
                                                    L = period of analysis
                                                                                                            DOE anticipates that some new code                    meet the code requirement rather than
                                                    RTF = income tax rate, federal                                                                                include the cost of niche or optional
                                                                                                            provisions may have significantly
                                                                                                                                                                  technology. For example, if there are
                                                      This proposed change from prior                       different first costs depending on
                                                                                                                                                                  multiple options available to comply
                                                    commercial cost-effectiveness practice                  unrelated aesthetic choices or
                                                                                                                                                                  with the code, and if one widely
                                                    to include property tax impacts makes                   exceptions and flexibility options in the
                                                                                                                                                                  applicable and accepted option is found
                                                    the commercial method more robust and                   code. For example, a requirement for                  to be cost-effective, then the approach
                                                    further consistent with the residential                 window shading could be met with                      would be deemed cost-effective. This is
                                                    method. DOE is seeking public input on                  interior blinds, electro-chromatic                    because there is one cost-effective path
                                                    the appropriateness of the addition of                  windows, static exterior shades, or an                through the code, and if a higher cost
                                                    property tax impact analysis to Scenario                active tracking exterior shading system.              option is chosen, that is the developer
                                                    2 of the cost-effectiveness methodology.                Or, a reasonable window-to-wall ratio                 or designer’s choice.
                                                    (Topic C01).                                            may be set as a baseline for standard                   Furthermore, some new code
                                                                                                            efficiency heating, ventilation, and                  provisions may come with no specific
                                                    IV. Common Issues for Both Residential
                                                                                                            cooling (HVAC) equipment, and                         construction changes at all, but rather be
                                                    and Commercial Buildings
                                                                                                            exceeding that ratio may require more                 expressed purely as a performance
                                                      There are common issues for both                      expensive higher efficiency HVAC                      requirement. DOE intends to evaluate
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                    residential and commercial buildings                    equipment. It has been suggested, for                 any such code changes case-by-case and
                                                    related to cost estimate development                    example, that a future code may replace               will search the research literature or
                                                    when there are multiple paths to                        or supplement independent prescriptive                conduct new analyses to determine the
                                                                                                                                                                                                                     EN14AP15.005</GPH>




                                                    compliance and regarding the preferred                  requirements with options expected to                 reasonable set of construction changes
                                                      6 Hart, R, and B. Liu. 2015. ‘‘Methodology for        Program. Available at: www.energycodes.gov/             8 See: http://www.energycodes.gov/development/

                                                    Evaluating Cost-effectiveness of Commercial Energy      development/commercial/methodology.                   commercial/cost_effectiveness.
                                                                                                              7 See: www.energycodes.gov/development/
                                                    Code Changes.’’ DOE EERE Building Energy Codes
                                                                                                                                                                                                                     EN14AP15.004</GPH>




                                                                                                            commercial/2015IECC.



                                               VerDate Sep<11>2014   17:42 Apr 13, 2015   Jkt 235001   PO 00000   Frm 00024   Fmt 4703   Sfmt 4703   E:\FR\FM\14APN1.SGM   14APN1


                                                                                   Federal Register / Vol. 80, No. 71 / Tuesday, April 14, 2015 / Notices                                           19979

                                                    that could be expected to emerge in                     D. Commercial Issues on Which DOE                        Filed Date: 4/7/15.
                                                    response to such new requirements.                      Seeks Information                                        Accession Number: 20150407–5256.
                                                      DOE is seeking public input on the                    C01. The appropriateness of the                          Comments Due: 5 p.m. ET 4/17/15.
                                                    appropriateness of assessing the first                    addition of property tax impact                        Docket Numbers: ER15–1332–001.
                                                    cost where a new or changed                               analysis to the Scenario 2 cost-                       Applicants: Arbuckle Mountain Wind
                                                    requirement can be met by multiple                        effectiveness methodology                           Farm LLC.
                                                    construction approaches with varying                    C02. Other comments on DOE’s                             Description: Tariff Amendment per
                                                    cost implications (Topic G01).                            commercial cost-effectiveness                       35.17(b): Supplement to MBR
                                                    B. Economic Parameters and Inputs                         methodology for code change analysis                Application to be effective 5/18/2015.
                                                                                                              Issued in Washington, DC, on April 7,
                                                                                                                                                                     Filed Date: 4/8/15.
                                                      The data sources and procedures for                                                                            Accession Number: 20150408–5095.
                                                                                                            2015.
                                                    establishing economic parameters                                                                                 Comments Due: 5 p.m. ET 4/29/15.
                                                    required for calculating the metrics                    David Cohan,
                                                                                                            Manager, Building Energy Codes Program,                  Docket Numbers: ER15–1333–001.
                                                    described above are described in detail                                                                          Applicants: Waverly Wind Farm LLC.
                                                    in the established residential                          Building Technologies Office, Energy
                                                                                                            Efficiency and Renewable Energy.                         Description: Tariff Amendment per
                                                    methodology and established                                                                                   35.17(b): Supplement to MBR
                                                                                                            [FR Doc. 2015–08601 Filed 4–13–15; 8:45 am]
                                                    commercial methodology (see Analysis                                                                          Application to be effective 5/18/2015.
                                                    for Residential Buildings and Analysis                  BILLING CODE 6450–01–P
                                                                                                                                                                     Filed Date: 4/8/15.
                                                    for Commercial Buildings sections of                                                                             Accession Number: 20150408–5096.
                                                    this notice). DOE will use the most                                                                              Comments Due: 5 p.m. ET 4/29/15.
                                                    recent values of these parameters                       DEPARTMENT OF ENERGY
                                                                                                                                                                     Docket Numbers: ER15–1470–000.
                                                    available at the time an analysis is                    Federal Energy Regulatory                                Applicants: PJM Interconnection,
                                                    begun. DOE is seeking public input on                   Commission                                            L.L.C.
                                                    whether this approach can be improved
                                                                                                                                                                     Description: Compliance filing per 35:
                                                    through use of data sources not                         Combined Notice of Filings #1                         Request for Expedited Grant of Waiver
                                                    included in the established commercial
                                                                                                               Take notice that the Commission                    to be effective N/A.
                                                    and residential methodologies (Topic
                                                                                                            received the following electric corporate                Filed Date: 4/7/15.
                                                    G02).
                                                                                                            filings:                                                 Accession Number: 20150407–5215.
                                                    V. Public Participation                                    Docket Numbers: EC15–82–000.                          Comments Due: 5 p.m. ET 4/14/15.
                                                    A. Submission of Information                               Applicants: Spokane Energy, LLC,                      Docket Numbers: ER15–1471–000.
                                                                                                            Avista Corporation.                                      Applicants: Blue Sky West, LLC.
                                                      DOE will accept information in                           Description: Supplement to March 2,                   Description: Initial rate filing per
                                                    response to this notice under the                       2015 Joint Application of Spokane                     35.12 Application for Market-Based Rate
                                                    timeline provided in the DATES section                  Energy, LLC and Avista Corporation for                Authority to be effective 6/1/2015.
                                                    of this notice. Comments should be                      Approval of Assignment of Capacity                       Filed Date: 4/7/15.
                                                    submitted by one of the methods listed                  Sales Agreement.                                         Accession Number: 20150407–5239.
                                                    in the ADDRESSES section of this notice.                   Filed Date: 4/8/15.                                   Comments Due: 5 p.m. ET 4/28/15.
                                                    Comments should include the topic                          Accession Number: 20150408–5136.                      Docket Numbers: ER15–1472–000.
                                                    identifier (e.g., G01, R01, R02, C01, C02,                 Comments Due: 5 p.m. ET 4/20/15.                      Applicants: Niagara Mohawk Power
                                                    etc.) in the subject line and throughout                   Docket Numbers: EC15–115–000.                      Corporation.
                                                    the submission, as applicable, to aid in                   Applicants: American Transmission                     Description: Notice of Cancellation of
                                                    associating comments with the                           Company LLC.                                          Borderline Sales Agreement with
                                                    requested topics. In summary, DOE is                       Description: Application for                       Pennsylvania Electric Co., Rate
                                                    particularly interested in receiving                    Authority to Acquire Transmission                     Schedule No. 185 of Niagara Mohawk
                                                    information on the following issues/                    Facilities Under Section 203 of the FPA               Power Corporation.
                                                    topics:                                                 of American Transmission Company                         Filed Date: 4/7/15.
                                                                                                            LLC.                                                     Accession Number: 20150407–5252.
                                                    B. General Issues on Which DOE Seeks
                                                                                                               Filed Date: 4/7/15.
                                                    Information                                                                                                      Comments Due: 5 p.m. ET 4/28/15.
                                                                                                               Accession Number: 20150407–5253.
                                                    G01. The appropriateness of assessing                      Comments Due: 5 p.m. ET 4/28/15.                      Docket Numbers: ER15–1473–000.
                                                      the first cost where a new or changed                    Take notice that the Commission                       Applicants: Midcontinent
                                                      requirement can be met by multiple                    received the following electric rate                  Independent System Operator, Inc.
                                                      construction approaches with varying                  filings:                                                 Description: Section 205(d) rate filing
                                                      cost implications                                                                                           per 35.13(a)(2)(iii): 2015–04–08_SA
                                                                                                               Docket Numbers: ER15–697–001.
                                                    G02. Suggestions for preferred cost and                    Applicants: Tonopah Solar Energy,                  2771 ATC-Cloverland Common
                                                      economic parameter data sources                       LLC.                                                  Facilities Agreement to be effective 6/8/
                                                                                                               Description: Third supplement to                   2015.
                                                    C. Residential Issues on Which DOE                                                                               Filed Date: 4/8/15.
                                                    Seeks Information                                       December 22, 2014 Tonopah Solar
                                                                                                            Energy, LLC tariff filing.                               Accession Number: 20150408–5037.
                                                    R01. The appropriateness of revisions to                                                                         Comments Due: 5 p.m. ET 4/29/15.
asabaliauskas on DSK5VPTVN1PROD with NOTICES




                                                                                                               Filed Date: 4/7/15.
                                                      the prototypes used for residential                      Accession Number: 20150407–5257.                      Docket Numbers: ER15–1474–000.
                                                      analysis                                                 Comments Due: 5 p.m. ET 4/17/15.                      Applicants: Southern California
                                                    R02. The appropriateness of using fewer                    Docket Numbers: ER15–1019–000.                     Edison Company.
                                                      weather stations for national and                        Applicants: Fowler Ridge IV Wind                      Description: Section 205(d) rate filing
                                                      preliminary analysis                                  Farm LLC.                                             per 35.13(a)(2)(iii): GIA and Distrib Serv
                                                    R03. Other comments on DOE’s                               Description: Supplement to February                Agmt Boomer Solar 12 LLC 810
                                                      residential cost-effectiveness                        10, 2015 Fowler Ridge IV Wind Farm                    Wanamaker Ave. Ontario Project to be
                                                      methodology for code change analysis                  LLC tariff filing.                                    effective 4/9/2015.


                                               VerDate Sep<11>2014   17:42 Apr 13, 2015   Jkt 235001   PO 00000   Frm 00025   Fmt 4703   Sfmt 4703   E:\FR\FM\14APN1.SGM   14APN1



Document Created: 2015-12-18 11:09:41
Document Modified: 2015-12-18 11:09:41
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionNotices
ActionRequest for information.
DatesWritten comments and information are requested by May 14, 2015.
ContactJeremiah Williams; U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office EE-5B, 1000 Independence Avenue SW., Washington, DC 20585; Phone: (202) 287-1941, Email: [email protected]
FR Citation80 FR 19974 

2024 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR