What is Japan's first energy storage project?

In 2015, we started Japan's first demonstration project covering energy storage connected to the power grid in the Koshikishima, Satsumasendai City, Kagoshima. This project is still operating in a stable manner today. One feature of our grid energy storage system is that it utilizes reused batteries from EVs.

Why are Japanese companies investing in battery energy storage systems?

Sign up here. That is creating surging interest in battery energy storage systems (BESS) to smooth mismatches in supply and demand. Since December 2023, companies have announced investments of at least $2.6 billion in Japanese battery storage projects, according to calculations by Reuters.

Can energy storage improve the reliability of Japan's grid?

“As Japan accelerates the development of renewable energy projects to meet its decarbonization goals, energy storage will have a crucial role to play in enhancing the reliability of the Japanese grid,” said Ryan Chua, Senior Managing Director at Stonepeak.

How do storage systems work in Japan?

Storage systems like BESS help keep power systems stable, especially when more electricity comes from solar and wind sources. Other projects in Japan include a municipal BESS project in Iida City, Nagano Prefecture. This small-scale system, with an installed capacity of 2 MW/4 MWh, is operated by a city-owned energy company.

Should you buy a battery storage system in Japan?

In addition, Japan’s capacity market is currently limited to battery storage systems lasting 3 hours, and the uncertainty of its overall revenue stack may make investors cautious about purchasing large-scale battery storage systems.

How big is Japan's battery storage capacity?

Rystad forecasts Japan's battery storage capacity could reach about 4 GW based on projects under construction, planned and awarded, which would require $6 billion in investment.