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.

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.

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.

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.

What is Banpu Japan's new grid battery storage system?

This contract represents the largest single order for the system to date. The order is for two new grid battery storage sites to be built by Banpu Japan in Fukushima Prefecture, and Miyazaki Prefecture. Each site will have a storage capacity of 109.6 MWh, equivalent to the daily electricity consumption of approximately 10,150 households.

Does Japan's energy storage rollout face structural headwinds?

Despite strong policy signals, Japan’s energy storage rollout faces deep structural headwinds. The nation’s split-grid architecture—50 Hz in the east and 60 Hz in the west—limits electricity transfer and complicates nationwide deployment.