On November 17, 2016, the Federal Energy Regulatory Commission (FERC) issued a notice of proposed rulemaking (NOPR) that, if adopted, would require organized wholesale electricity markets (RTO/ISO markets) to modify their open access transmission tariffs and market rules to accommodate electric storage resources and allow participation of distributed energy resource aggregators. This NOPR is part of FERC’s ongoing efforts to remove barriers to participation in wholesale electric markets. FERC recognizes that electric storage resources and distributed energy resources are often constrained by antiquated wholesale market rules that were, as FERC puts it, “developed in an era when traditional generation resources were the only resources participating in the organized wholesale electricity markets.” This NOPR will promote far greater market participation by storage resources of all types, including batteries, flywheels, compressed air and pumped hydro, as well as distributed resources such as distributed generation, electric storage, thermal storage and electric vehicles.

For electric storage resources, which are defined as resources capable of receiving electric energy from the grid and storing it for later injection of electricity back to the grid, the NOPR would require each RTO/ISO to implement tariff provisions that will:

  • Ensure an electric storage resource is eligible to provide services it is technically capable of providing
  • Incorporate bidding parameters that reflect the physical and operational characteristics of the resources
  • Ensure that electric storage resources can set the market clearing price as a seller or buyer
  • Establish a minimum size requirement that does not exceed 100 kW
  • Specify that sales and purchases must be made at the wholesale locational marginal price


Continue Reading FERC Proposes to Remove Barriers to Wholesale Market Participation for Electricity Storage and Distributed Energy Resource Aggregators

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