FERC Acts On DER Aggregation Filings Submitted By California, N.Y. Grid Operators

by Paul Ciampoli
APPA News Director
June 20, 2022

The Federal Energy Regulatory Commission on June 16 responded to filings submitted by the California Independent System Operator (CAISO) and the New York Independent System Operator (NYISO).

The filings were made in compliance with FERC Order No. 2222 addressing the participation of aggregated distributed energy resources in wholesale markets administered by regional transmission organizations (RTOs) and independent system operators (ISOs).

The action, which took place at FERC’s monthly meeting, marked the first two compliance filings that FERC has acted upon tied to Order No. 2222.

In the CAISO order (Docket No. ER21-2455), FERC accepted the grid operator’s compliance filing, subject to a further compliance filing to be submitted within 60 days of the date of issuance of the order.  

FERC directed CAISO to file a further compliance filing that either revises its distributed energy resource aggregation model or demonstrates that its existing demand response models are compliant with Order No. 2222.  

FERC also directed further compliance associated with coordination requirements of Order No. 2222, such as the distribution utility review process.

In the NYISO order (Docket No. ER21-2460), FERC accepted NYISO’s compliance filing, subject to a further compliance filing to be submitted within 60 days of the date of issuance of the order. 

Among other things, FERC directed NYISO to file a further compliance filing that allows distributed energy resources in heterogeneous aggregations to provide all of the ancillary services they are technically capable of providing through aggregation.

FERC also directed further compliance with respect to interconnection, participation, and coordination requirements of Order No. 2222, such as the distribution utility review process. 

The Commission said that it will continue reviewing the remaining compliance filings, which were filed by ISO New England, Midcontinent Independent System Operator, the PJM Interconnection and Southwest Power Pool.