Rosatom, Russia’s biggest electricity provider and the country’s supplier of nuclear fuel for power plants, has opened an energy storage business unit baed around lithium-ion batteries.

Qatar General Electricity and Water Corporation (Kahramaa), has commissioned the Middle Eastern country’s first ever megawatt-scale battery storage system in time to measure the pilot project’s effectiveness at dealing with peak demand in summer.

Subsidiaries of state-run energy conglomerate China Energy Engineering Corp have started constructing two major solar plants and one of the largest energy storage systems in China, according to filings on the Stock Exchange of Hong Kong (HKEX).