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By Michael Gergen, David Pettit and Christopher Randall

The CPUC’s market-shaping decision provides guidance regarding the “stacking” of multiple electricity system services.

A new decision from the Public Utilities Commission of the State of California (CPUC) has set the stage for improved economic viability for California’s energy storage industry. The January 17 decision — Decision 18-01-003 in Rulemaking 15-03-011 (the Decision) — establishes a set of rules to guide utilities on how to “promote the ability of storage resources to realize their full economic value when they are capable of providing multiple [or ‘stacked’] benefits and services to the electricity system.”

To advance this objective, the CPUC has adopted 11 stacking rules to govern the evaluation of multiple-use energy storage applications, as well as associated definitions of services and service “domains.” The agency also established a working group to develop certain issues further and directed the CPUC’s Energy Division to prepare a report in 2018 on the state of the energy storage industry.

By Michael Gergen, David E. Pettit and Christopher Randall

solar panelsOn September 14, 2017, the New York Public Service Commission (NYPSC or the Commission) issued its Order on Phase One Value of Distributed Energy Resources Implementation Proposals, Cost Mitigation Issues, and Related Matters (the Implementation Order). The Implementation Order sets the methodologies by which utilities throughout the state of New York will determine the Value of Distributed Energy Resources (VDER). It follows the Commission’s March 9, 2017 Order on Net Metering Transition, Phase One of Value of Distributed Energy Resources, and Related Matters (the VDER Phase One Order), which the Commission issued in furtherance of the State’s Reforming the Energy Vision (REV) initiative and is analyzed in a prior Latham & Watkins Client Alert.

In accordance with the VDER Phase One Order, each utility in the state submitted an Implementation Proposal addressing calculation and compensation methodologies for Distributed Energy Resources (“DERs”). The Implementation Order largely approves the utilities’ Implementation Proposals, with certain modifications relating to the recovery of VDER costs, the methodology behind the Installed Capacity credit, and the calculation of Market Transition Credits. The Order also addresses certain issues associated with the Value Stack for DERs and cost mitigation.