Japan s best-selling energy storage power supply

Who is supplying energy storage in Japan?

Image: ORIX Corporation / PR Times. Tesla and Sumitomo Electric have both been selected to supply energy storage projects in Japan. Tesla will supply Megapacks for a BESS project while Sumitomo will deploy a 12MWh vanadium flow battery.

How is Japan's energy storage landscape changing?

Japan’s energy storage landscape is shifting, pushed by household demand, corporate ESG mandates, and domestic battery manufacturing. The residential lithium-ion market, projected to grow at a CAGR of 33.9% through 2030, remains one of the fastest-expanding segments.

What is Japan's energy storage policy?

As policy, technology, and decarbonization goals converge, Japan is positioning energy storage as a critical link between its climate targets and energy reliability. Japan’s energy storage policy is anchored by the Ministry of Economy, Trade and Industry (METI), which outlined its ambitions in the 6th Strategic Energy Plan, adopted in 2021.

Who are Japan's major energy companies?

These have come from a mix of major Japanese industry players, including electric utilities and large corporates, and international players like technology providers Tesla, LS Electric and Sungrow, and developers such as Eku Energy and Gurin Energy.

How big is Japan's battery storage market?

In the commercial space, Japan’s battery storage market was valued at USD 593.2 million in 2023 and is projected to reach USD 4.15 billion by 2030. While commercial installations currently dominate revenues, industrial adoption is expected to scale faster. Utility-scale storage is also gaining ground.

Can EKU energy commercialise large-scale batteries in Japan?

For Eku Energy, the LTDA is important to the business model of its Japanese projects but the developer, perhaps best known for projects in the UK and Australia, sees three pathways to commercialisation for large-scale batteries in Japan. The company secured a 20-year tolling agreement for its first Japan project, the 30MW/120MWh Hirohara BESS.