Essential Reliability Services and the Evolving Bulk-Power System-Primary Frequency Response

The Federal Energy Regulatory Commission (Commission) is modifying the pro forma Large Generator Interconnection Agreement (LGIA) and pro forma Small Generator Interconnection Agreement (SGIA) to require newly interconnecting large and small generating facilities, both synchronous and non-synchronous, to install, maintain, and operate equipment capable of providing primary frequency response as a condition of interconnection. These changes are designed to address the potential reliability impact of the evolving generation resource mix, and to ensure that the relevant provisions of the pro forma LGIA and pro forma SGIA are just, reasonable, and not unduly discriminatory or preferential.