How big is Japan's energy storage capacity?

Global energy storage capacity was estimated to have reached 36,735MW by the end of 2022 and is forecasted to grow to 353,880MW by 2030. Japan had 1,671MW of capacity in 2022 and this is expected to rise to 10,074MW by 2030. Listed below are the five largest energy storage projects by capacity in Japan, according to GlobalData’s power database.

Why are battery storage projects growing in Japan?

The ramp up of battery storage projects in Japan continues apace, aided by growing subsidy avenues and rising volumes on various electricity markets, from spot to balancing to capacity.

What is the future of energy storage?

Local companies Toshiba, Itochu and Hitachi are among those betting on energy storage systems for growth. There is much potential in this relatively overlooked sector: the global battery energy storage market will reach as much as $150bn by 2030, estimates McKinsey. Falling prices of battery cells should help wider adoption of home batteries.

Why is Tokyo launching a virtual power plant?

The push is reinforced by Tokyo’s 2025 regulation requiring solar panels on new homes, and the launch of virtual power plant (VPP) programs—slated to begin in fiscal 2026—that will let households sell surplus energy to the grid.

Can energy storage be a key link between climate and Energy Reliability?

Projects led by Hitachi Energy and JAPEX are already deploying batteries for grid stability and renewable integration. As policy, technology, and decarbonization goals converge, Japan is positioning energy storage as a critical link between its climate targets and energy reliability.

Where can I buy a home battery system in Japan?

It is positioned to benefit from a push into local retail chains by selling its home battery system through Yamada Denki, Japan’s largest electronics store chain, in a partnership with the chain’s operator Yamada Holdings. Yamada has about 1,000 stores nationwide that already sell residential solar systems.