Further developments from the California Independent System Operator (CAISO) market including new standards for BESS maintenance and operation and new BESS capacity announced by SDG&E.

An eight-hour duration lithium-ion battery project has become the first long-duration energy storage resource selected by a group of non-profit energy suppliers in California. 

The California Public Utility Commission (CPUC) has tabled plans to mitigate a potential shortfall of electricity through the rapid procurement of new capacity over the next five years, 90% of which must be non-emitting firm resources.

Regulator approves an industry-led roadmap for solar-plus-storage systems to take advantage of net metering.

In the first of a two-part blog series on the energy storage response to the infamous Aliso Canyon gas leak in California, Energy-Storage.News sets the scene of how the California Energy Commission and chosen system suppliers got their heads around solving a mammoth power shortage with many, many batteries, in a race against time.

In the spirit of harnessing clean energy and enhancing grid reliability, Californian utility San Diego Gas & Electric (SDG&E) has signed contracts for 83.5MW of energy storage.

Another energy storage system project expedited to meet the resource adequacy requirements of a California utility following the Aliso Canyon gas leak has been completed, Powin Corporation has announced.

Utility-scale solar projects in a region of Japan affected by fears of grid capacity constraints have been supplied with energy storage, aimed at mitigating the potential effects of output curtailment.

US utility Southern California Edison (SCE) has classified energy storage as an “eligible preferred resource” in a 100MW request for offers (RFO) it has issued to acquire renewable energy, capacity and load reduction from new sources.

Dean Frankel of Lux Research blogs about utility Southern California Edison’s recent 235MW award of battery-based energy storage projects, a decision which surpassed their 50MW requirement by some distance and was described as “monumental” by one trade advocacy group when it emerged. Frankel examines the procurement in detail and looks at some of the questions that remain as-yet unanswered by the announcement.