Swiss energy company MET Group has inaugurated the largest stand-alone electricity storage system in Hungary's history. The new installation, located at the Dunamenti power plant in Százhalombatta near Budapest, has a rated power output of 40 MW and an energy storage capacity of 80. . MET Group has switched on Hungary's largest battery, a 40 MW/80 MWh system, at the site of a power station near Budapest. MET Group put into operation a battery electricity storage plant with a total nominal power output of 40 MW and a storage capacity of 80 MWh (2-hour cycle). It is the latest example in a series of. .
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In 2009, world pumped storage generating capacity was 104, while other sources claim 127 GW, which comprises the vast majority of all types of utility grade electric storage. The had 38.3 GW net capacity (36.8% of world capacity) out of a total of 140 GW of hydropower and representing 5% of total net electrical capacity in the EU. had 25.5 GW net capacity (24.5%.
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