California Public Utilities Commission Holds Prehearing Conference on Energy Storage Procurement Targets
As we’ve previously discussed, California’s AB 2514 requires the CPUC and municipal utilities in California to open proceedings by March 1, 2012 to determine appropriate targets, if any, for the procurement of viable and cost-effective energy storage systems by load-serving entities. Over a year before that deadline, the CPUC opened Rulemaking 10-12-007 in December of last year to both implement AB 2514 and “on [the CPUC’s] own motion to initiate policy for California utilities to consider the procurement of viable and cost effective storage systems.” In early March, the CPUC held an initial workshop on the scope of the rulemaking proceeding.
On April 21, the Commission held a prehearing conference to determine the scope and schedule for the proceeding. Stoel Rives partner Seth Hilton attended the conference. Among the issues discussed at the prehearing conference, led by Administrative Law Judge Yip-Kikugawa, was whether to conduct the proceeding in phases (e.g., first examining how storage might be applied, and then in a subsequent proceeding setting what the mandate will be for storage procurement), the issues to be covered in each phase , and whether evidentiary hearings would be necessary.
According to ALJ Yip-Kikugawa, a scoping memo should issue in the next two to three weeks. The scoping memo will set out the issues to be considered in the proceeding and a schedule for their resolution.
We'll be posting further information on Renewable + Law Blog when the scoping memo comes out, so stay tuned for further developments.
CPUC Staff Issues White Paper on Electric Energy Storage (EES)
Energy Electricty Storage (EES) is likely to become more and more important as intermittent solar and wind energy resources penetrate the grid. EES may be a very useful and perhaps essential way to manage the variability of intermittent renewable energy resources to allow developers to continue building wind and solar projects at an accelerating pace.
On July 9, 2010, the Policy and Planning Division of the California Public Utility Commission (CPUC) issued an interesting Staff White Paper entitled "Electric Energy Storage: An Assessment of Potential Barriers and Opportunities." The report is worth reading for those who are interested in the future of renewable energy and the roll that EES can play in enhancing the deployment of intermittent renewables.
The report describes "a promising new set of Electric Energy Storage ("EES") technologies [that] appear to provide an effective means for addressing the growing problems of reliance on an increasing percentage of intermittent renewable generation resources." The report observes that EES can provide several basice services, such as (1) supplying peak electricity demand by using electricity generated during periods of lower demand (e.g., storage of wind energy generated at night for use during daily peak periods), (2) balancing electricity supply and demand fluctuations over a period of minutes, and (3) deferring expansion of electric grid capacity (including generation, transmission and distribution).
Potential storage technologies include pumped hydro, compressed air energy storage ("CAES"), batteries, thermal storage (e.g., solar thermal plants), flywheels, unltracapacitors and superconducting magnetic storage--the report provides short but helpful description of each technology. Storage presents interesting legal and policy issues, because "[r]egulators are uncertain how EES technologies should fit into the electric system, in part because EES services provide multiple services such as generation, transmission and distribution." In addition, "regulators do not yet know how EES costs and benefits should be allocated among these three main elements of the electric system."
The report makes a number of recommendations, including that the CPUC should conduct a rulemaking to develop policies to remove barriers to the deployment of EES technology in California. The report also proposes that the CPUC consider placing EES within California's energy resources loading order, require utilities to incoporate EES into their integrated resource planning processes, encourage CAISO to change ancillary service market rules to allow EES systems to more easily bid into regulation markets, and integrate EES into utility transmission planning.
The report concludes that "the major barrier for deployment of new storage facilities is not necessarily the technology, but the absence of appropriate regulations and market mechanisms that properly recognize the value of the storage resource and financially comepnsate the owners/operators for the services and benefits they provide."
You can find the report here.
CPUC Staff Issues White Paper on Electric Energy Storage (EES)
Energy Electricty Storage (EES) is likely to become more and more important as intermittent solar and wind energy resources penetrate the grid. EES may be a very useful and perhaps essential way to manage the variability of intermittent renewable energy resources to allow developers to continue building wind and solar projects at an accelerating pace.
On July 9, 2010, the Policy and Planning Division of the California Public Utility Commission (CPUC) issued an interesting Staff White Paper entitled "Electric Energy Storage: An Assessment of Potential Barriers and Opportunities." The report is worth reading for those who are interested in the future of renewable energy and the roll that EES can play in enhancing the deployment of intermittent renewables.
The report describes "a promising new set of Electric Energy Storage ("EES") technologies [that] appear to provide an effective means for addressing the growing problems of reliance on an increasing percentage of intermittent renewable generation resources." The report observes that EES can provide several basice services, such as (1) supplying peak electricity demand by using electricity generated during periods of lower demand (e.g., storage of wind energy generated at night for use during daily peak periods), (2) balancing electricity supply and demand fluctuations over a period of minutes, and (3) deferring expansion of electric grid capacity (including generation, transmission and distribution).
Potential storage technologies include pumped hydro, compressed air energy storage ("CAES"), batteries, thermal storage (e.g., solar thermal plants), flywheels, unltracapacitors and superconducting magnetic storage--the report provides short but helpful description of each technology. Storage presents interesting legal and policy issues, because "[r]egulators are uncertain how EES technologies should fit into the electric system, in part because EES services provide multiple services such as generation, transmission and distribution." In addition, "regulators do not yet know how EES costs and benefits should be allocated among these three main elements of the electric system."
The report makes a number of recommendations, including that the CPUC should conduct a rulemaking to develop policies to remove barriers to the deployment of EES technology in California. The report also proposes that the CPUC consider placing EES within California's energy resources loading order, require utilities to incoporate EES into their integrated resource planning processes, encourage CAISO to change ancillary service market rules to allow EES systems to more easily bid into regulation markets, and integrate EES into utility transmission planning.
The report concludes that "the major barrier for deployment of new storage facilities is not necessarily the technology, but the absence of appropriate regulations and market mechanisms that properly recognize the value of the storage resource and financially comepnsate the owners/operators for the services and benefits they provide."
You can find the report here.
