Manoa Energy is a developer and operator of High Voltage and Extra High Voltage Battery Energy Storage Systems in Japan, with a pipeline of c.1GW of projects across the development cycle.
Our team’s activities include land origination, grid connection, permitting and licensing with in-house risk assessment, due diligence, project development and construction management capabilities.
The Manoa portfolio comprises a wide-ranging pipeline of extra high voltage and high voltage BESS projects. Project Helios in Hokkaido marks a key milestone: a 50 MW / 2-hour standalone grid-scale BESS that achieved commercial operation in December 2025, positioning it among Japan's earliest battery energy storage projects. Manoa's parent entity Brawn Capital is a Hong Kong-based energy transition private equity infrastructure firm founded in 2015. Brawn is a platform investor in the development and construction of cutting-edge decarbonized data centers in targeted APAC markets, as well as an owner and asset manager of Grid Scale Battery Energy Storage Systems in Japan. Brawn has previously developed renewable energy projects across APAC including 180 MW of solar projects in Japan, and a further 60 MW of solar projects in the greater Asia Pacific region.