Neoen announces Ako Battery, its first big battery in Japan, during the French President’s official visit

Tokyo and Paris, 2 April 2026

Neoen announces Ako Battery, its first big battery in Japan, during the French President’s official visit

• Neoen announces Ako Battery, its first big battery in Japan, located in the Kansai region
• At 100 MW / 400 MWh, Ako Battery will be one of Japan’s largest batteries. Construction is expected to be launched in coming months, and the asset is scheduled to start operating in 2028
• The announcement took place during this week’s official visit of French President Emmanuel Macron at the French Japanese Business Forum in Tokyo
• Storage is a key pillar of Neoen’s expertise; the company holds a global battery storage portfolio totalling 2.8 GW / 8.1 GWh across 7 countries

Neoen, one of the world’s leading renewable energy companies, is announcing its first investment in Japan Ako Battery (100 MW / 400 MWh), which will be one of the country’s largest batteries. The announcement took place at the French Japanese Business Forum held in Tokyo during this week’s official visit of the French President Emmanuel Macron.

Ako Battery is located in the Hyogo Prefecture, in the Kansai region of Japan. Neoen is collaborating with French company Equans and Japanese company Toho on this project and obtained a grid connection agreement with the network operator, Kansai Electric Power Company (KEPCO) in January 2026. Ako is a 4-hour long duration battery which will actively support the Japanese grid, enhancing stability and resilience. The notice to proceed is expected in coming months and the battery is scheduled to be operational in 2028.

Neoen intends to become a major player in Japan’s battery storage sector and long-term contributor to resilience of its electricity network. Based in Tokyo, Neoen’s local team is already developing a significant pipeline of projects.

Neoen is active in 15 countries across 3 regions – Europe, the Americas and Australia Pacific, the latter including Australia, Japan and New Zealand. Since 2017 when Neoen delivered the world’s first big battery, Hornsdale Power Reserve in South Australia, the company has maintained a prominent role in Australia’s battery storage sector, holding the country’s largest portfolio of big batteries totalling 2.3 GW / 7.2 GWh in operation or under construction. On a global scale, Neoen’s storage capacity spans 7 countries (Australia, Finland, France, Germany, Italy, Sweden and El Salvador), with 2.8 GW / 8.1 GWh of batteries in operation or under construction.

Xavier Barbaro, Group CEO of Neoen, said: “As a pioneer in battery storage, Neoen is extremely proud to be announcing Ako Battery, our first investment in Japan and a major step in our expansion in the region. This achievement is impressive both in its scale and the speed of its delivery. Our team in Tokyo is fully dedicated to contributing our storage expertise to help strengthen Japan’s energy security and accelerate its energy transition.”

About Neoen

Founded in 2008, Neoen is one of the world’s leading renewable energy companies, with expertise in solar, onshore wind power and battery storage. Neoen plays an active role in accelerating the energy transition of the countries where it operates by delivering clean, competitively priced local energy. Neoen’s total global capacity in construction, in operation or under management stands at 9 GW. A high-growth company, Neoen intends to install another 10 GW by 2030. Neoen is managed by an international team of experts led by Xavier Barbaro, Director of BRHL UK Holdings Ltd and BRHL UK Midco Ltd, Chairman of Cartusia S.A.S., Group CEO.

Neoen operates close to 200 assets across three continents. Its flagship assets include Western Downs Green Power Hub in Australia, comprised of the country’s largest solar farm (460 MWp) and Western Downs Battery (540 MW / 1,080 MWh); Collie Battery (560 MW / 2,240 MWh) one of the world’s most powerful large-scale storage systems; France’s most powerful solar farm (300 MWp) in Cestas; and Finland’s largest wind farm (404 MW) in Mutkalampi.

For more information: www.neoen.com