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Energy storage to revolutionise large scale renewable energy

Energy storage mandate expected to bring large-scale renewable energy projects onto the electric grid http://photos.mercurynews.com/2013/10/16/energy-storage-mandate-expected-to-bring-large-scale-renewable-energy-projects-onto-the-electric-grid/ Oct 16, 2013 

The first-in-the-nation energy storage mandate is expected to help integrate large-scale renewable projects onto the electric grid, help the grid better manage unpredictable events such as storms or wildfires, push utilities to consider a wider range of emerging technologies and jump-start the storage market as a whole. PG&E’s Yerba Buena Battery Energy Storage System Pilot Project, based in East San Jose, charges batteries when demand is low and sends stored power to the grid when demand grows, allowing operators to balance supply and demand. The project, which cost $18 million, uses the sodium-sulfur batteries made by NGK in Japan that have 4 megawatts of capacity and can store electricity for roughly six hours

PG&E’s Yerba Buena battery energy storage project, seen Tuesday morning Oct. 15, 2013, is capable of storing up to four megawatts of power from its place in the hills above Evergreen Valley College in San Jose, Calif. A California law that requires utilities to get 33 percent of their electricity from renewable sources like solar and wind is widely credited with accelerating the state’s cleantech economy. Now state regulators are poised to compel utilities to invest in “energy storage,” which could jump-start technology long considered the holy grail of the electricity industry. (Karl Mondon/Bay Area News Group)

October 17, 2013 - Posted by Christina Macpherson | energy storage, USA