Led by the Japanese and the US, Li-ion ESS accounted for 419MW and 1,555 MWh of proposed storage systems in 2014.
Molten salt systems – consisting almost entirely of sodium-sulfur (NaS) concepts – still made up for 23% of all deployed megawattage and 64% of deployed MWh respectively, last year.
“Driven by renewable-connected systems and demand management, grid-scale energy storage is taking off, with 450 MW and 730MWh of systems installed in 2014 ,” says Lux Research associate Dean Frankel.
“As
