Partnership in Power

Energia Prima Nusantara (EPN), a subsidiary of Astra International with a focus on renewable energy, is partnering JJ-LAPP Indonesia on a large-scale Battery Energy Storage System (BESS) project expected to be completed by June 2026.

Spread across seven sites, the initiative is set to deliver a total capacity of 5.16 MWh. The first installations are already underway at Sangatta and Kutai, with a hybrid liquid-cooled cabinet system designed to reduce diesel consumption and lower carbon emissions.

This marks EPN’s continued investment in greener solutions, having already tested 200kWh units across four other locations – a successful pilot that has paved the way for the current rollout.

Beyond supplying the BESS, JJ-LAPP provides a complete solution including inverters and balance-of-system components and is heavily involved in system design and commissioning support. The choice of liquid cooling ensures higher efficiency and eliminates the need for bulky transformers, offering a compact, cost-effective alternative to traditional air-cooled systems.

The project reflects a growing shift in Indonesia’s energy landscape. EPN is eyeing a pipeline expansion to 20MWh by 2026, opening the door for further collaboration including cable supply to mining operators.