FERC Order 2222 opens wholesale markets to distributed energy resource aggregators

U.S. electric utility regulators have issued an order requiring the nation's regional organized wholesale electric markets to allow participation by portfolios of solar projects and other distributed energy resources. The Federal Energy Regulatory Commission's Order 2222 finds that existing regional electricity market rules are unjust and unreasonable in light of barriers that they present to the participation of DER aggregations in these markets, and requires regional grid operators to revise their tariffs to accomodate distributed energy resource aggregators. While further process and uncertainty remain ahead, FERC Order 2222 should facilitate the development of distributed energy resources by removing barriers to electricity market participation.

As defined by the FERC, distributed energy resources (DER) encompass a variety of types of technology when installed on the distribution system, a distribution subsystem or behind a customer meter. Typically less than 10,000 kilowatts in capacity for each installation, DER technologies include solar photovoltaic systems and other distributed generation or intermittent generation, electric storage, electric vehicles and their charging equipment, thermal storage, and other consumer-side measures like demand response and energy efficiency. The U.S. is experiencing significant growth in the number and size of DERs installed on the system, due to factors including federal tax incentives and state incentives, as well as considerations of reliability and utility rate design.

Through Order 2222, issued on September 17, 2020, FERC has now found "that existing RTO/ISO market rules are unjust and unreasonable in light of barriers that they present to the participation of distributed energy resource aggregations in the RTO/ISO markets, which reduce competition and fail to ensure just and reasonable rates." As a result, the Commission adopted a final rule requiring regional transmission organizations and other organized wholesale market operators to establish DER aggregators as a type of market participant, to allow them to register their DERs under one or more participation models that accommodate the physical and operational characteristics of those resources and to participate in the regional organized wholesale capacity, energy and ancillary services markets. Order 2222 allows DERs to aggregate together to satisfy minimum size and performance requirements that they might not meet individually.

The boundaries between federal and state jurisdiction over DERs arise as a matter of federal law, and have occasionally been tested -- most recently in connection with FERC Order 841, governing storage. As noted by the Commission, its Order 2222 final rule "builds off the DC Circuit Court’s recent ruling on Order No. 841, in which the court affirmed the Commission’s exclusive jurisdiction over the regional wholesale power markets and the criteria for participation in those markets." Order 2222 prohibits state regulators from broadly excluding DERs from participating in regional markets, but gives state retail regulatory authorities some power by creating a "small utility opt-in", as well as respecting states regulators’ current ability to prohibit aggregators from bidding retail customers’ demand response into regional markets. Regarding interconnection, Order 222 explains that "state and local authorities remain responsible for the interconnection of individual DERs for the purpose of participating in wholesale markets through a DER aggregation."

The final rule largely tracks a 2016 proposed rule developed by FERC staff, with some changes. The regulator appears excited to take this step. According to a fact sheet issued by the Commission under the title, "FERC Order No. 2222: A New Day for Distributed Energy Resources", Order 2222 "will help usher in the electric grid of the future and promote competition in electric markets by removing the barriers preventing distributed energy resources (DERs) from competing on a level playing field in the organized capacity, energy and ancillary services markets run by regional grid operators."

Order 2222's final rule will take effect 90 days after its publication in the Federal Register. Grid operators will then have 270 days within which they must submit to FERC a compliance filing and a plan for timely implementation of the final rule. While Order 2222 and federal laws place some constraints on what the grid operators may propose, each regional transmission organization or independent system operator has some leeway to develop and propose solutions it views as tailored to its own markets and needs. This feature of federalism will likely result in some diversity in terms of regional designs, to be considered through regional stakeholder discussion and the Commission's regulatory processes.