Powering Japan's Energy Transition
Battery energy storage systems for Japan
Brawn Energy is a developer of Extra High Voltage Battery Energy Storage Systems in Japan.
Project Pipeline
1 GW
projects across development cycle
Combined experience
100+ years
of Japanese market & BESS expertise
Full Lifecycle Development
1
Due Diligence
Identification Land Analysis Diligence
2
Early Development
Design Permitting
3
Engineering & Construction
Procurement Contract Negotiation Construction Management
4
Finance
Project Finance
5
Operations
EHV Projects
01 Project Helios
50 MW/104 MWh BESS in Hokkaido
02 Project Mooka
50 MW BESS in Tochigi Prefecture
03 Project Maibara
50 MW BESS in Shiga Prefecture
04 Project Kyotanabe
137 MW BESS in Kyoto Prefecture
01 Project Helios
50 MW/104 MWh BESS in Hokkaido, one of Japan’s first to achieve commercial operations, achieved in 2025
04 Project Kyotanabe
137 MW BESS in Kyoto Prefecture
Local knowledge. Industry leadership.
Client Testimonials
Frequently Asked Questions
What does Brawn Energy do?
Brawn Energy develops utility-scale, extra high voltage battery energy storage systems (EHV BESS) across Japan. We identify, develop and deliver large-scale energy storage projects that help balance Japan’s energy transition as the country transitions toward renewable energy.
What is Extra High Voltage (EHV) BESS and why does it matter?
Extra High Voltage BESS refers to battery storage systems that connect directly to the high-voltage transmission network, rather than the lower-voltage distribution grid. This enables significantly larger power capacity to be dispatched at a scale that can meaningfully support grid stability, absorb renewable surplus, and meet peak demand, making EHV BESS a critical infrastructure component in Japan’s energy transition.
Where is Brawn Energy based?
Brawn Energy is headquartered in Shinbashi, Tokyo, with projects under development across multiple regions of Japan.
How does Brawn engage with local communities?
Community engagement is central to how we develop projects. We work closely with local governments, landowners and residents from the earliest stages of site selection, ensuring projects are developed with transparency and long-term local benefit in mind.
How can I find out more about partnering with or investing in Brawn Energy?
We welcome enquiries from utilities, investors, landowners and potential talent. Please get in touch via our contact page and a member of our team will respond directly.