31 Aug '17, 10am

via @greentechmedia

via @greentechmedia

Pushback against the proposed Puente natural gas plant in California now hinges on whether energy storage could do the job instead. The first whack at the question, in a study by the California Independent System Operator, found that storage could provide the needed local reliability, but at 2.7 times the cost. A GTM analysis of CAISO's calculations, though, found that they rely on lithium-ion cost projections from 2014, which makes them just about ancient history in terms of the fast-moving storage industry. Battery costs keep falling faster than predicted, and in 2014 the industry was barely getting started. CAISO doesn't have access to proprietary cost data; the grid operator's study makes clear the numbers are more of a ballpark calculation. It's up to the California Energy Commission to decide whether to allow NRG to build its Puente gas plant in Oxnard for 2020, or w...

Full article: https://www.greentechmedia.com/articles/read/energy-stora...

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