PLN, Sembcorp to develop Solar-BESS for Indonesia’s Future Capital

State-owned utility PLN and Singapore-based Sembcorp will develop Indonesia’s first co-located solar PV and battery energy storage system (BESS) to power Ibu Kota Nusantara (IKN), the country’s future capital on Kalimantan island. The 50MW solar plant, paired with a 14.2 MWh BESS, will be the first renewable energy project specifically developed for IKN.

Spanning 87 hectares, the facility will generate approximately 92.8 GWh of renewable energy. It will feature 114,420 bifacial solar PV modules (625MWp), 126 lithium iron phosphate battery packs, and smart transformer stations. PLN, through its subsidiary PLN Nusantara Power, is the majority owner and offtaker, with project financing supported by Clifford Capital and SocGen.