The US adoption of battery energy storage saw a massive increase in 2015 with total deployment rising by more than 150MW — with lithium-ion being used in 96% of systems.
During 2015 the US deployed 221MW/ 161MWh, up from 65MW/ 86MWh in 2014, according to the GTM Research/Energy Storage Association’s U.S. Energy Storage Monitor 2015 Year in Review report.