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Kami-Tonno BESS

This is the first BESS for which Eku Energy Japan conducts electricity market trading directly.

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Project overview

The Kami-Tonno BESS is the first BESS for which Eku Energy Japan will conduct electricity market trading directly. This project represents an important milestone as we advance asset operations and trading in Japan. Through this project, Eku Energy Japan builds knowledge and expertise in the operation and trading of BESS assets in Japan’s power market, which supports not only our future business development in Japan but also our broader business globally.

Kami-Tonno BESS in operation

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Key Facts

Japan
Nogata City, Fukuoka Prefecture
Storage capactiy -
2 MW / 8 MWh
Current status -
Operations
Since
April 2026

Downloads / links

Partners

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Acknowledgement
of Country

Project timeline

Current Status
1. Development

The site is selected and our team engage with local communities and stakeholders. Technical studies are undertaken and feedback is gathered ahead of lodging a Development Application (DA) with the relevant authorities.

Current Status
2. Pre-Construction and Financial Close

Once planning approvals have been secured, we negotiate contracts with suppliers and offtakers, and secure financing of the project ahead of financial close.

Current Status
3. Construction

We mobilise to site for ground-breaking and start building the project.

Current Status
4. Operations

Now the BESS is ready to deliver additional storage capacity to the grid and is managed by a team to ensure it operates as intended.

Current Status
5. Decommissioning

After 20+ years of its intended operational life, the BESS is decommissioned and the site is restored.

Kami-Tonno

FAQs

If you would like to find out more about what a battery energy storage system is and how they work click here

Project images

Ground breaking event
Construction
Construction by our partner NTT commenced in 2025 and was completed on time and budget in early 2026.
Commissioning
Kami-Tonno BESS was commissioned on April 1, 2026 in a wonderful ceremony with project partners.
Finished site
Kami-Tonno is up and running.

Videos

Latest news
and media releases

Media Release
Eku Energy Japan Commences Operations of the Kami-Tonno BESS
Japan
,
Nogata City, Fukuoka Prefecture
22/4/2026

More information

Please contact us for more information with regards to this project.

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