Malaysia to develop 500 MW solar and 1 GWh battery project

IOI Corporation Berhad and Tenaga Nasional Berhad (TNB) are partnering to develop a 500 MWac solar photovoltaic project coupled with a 250 MW/1,000 MWh battery energy storage system (BESS) in Bahau, Negeri Sembilan, Malaysia.

The project will span approximately 1,300 acres and is designed to supply renewable electricity to DayOne Data Centres Limited, a Singapore-based digital infrastructure platform. Under a long-term offtake agreement, DayOne is expected to procure up to 500 MWac of renewable energy over a 21-year period.

This initiative marks IOI’s first large-scale renewable energy investment under Malaysia’s Corporate Renewable Energy Supply Scheme (CRESS). The scheme enables corporate consumers to procure renewable power directly from independent developers via the national grid to support the decarbonization of energy-intensive industries, such as the growing data center sector.