In a boost for Indonesia’s renewable energy ambitions, Mitsubishi Power has completed the retrofit of Unit 3 at the Star Energy Darajat II Ltd’s Darajat Geothermal Power Plant in Indonesia, and commenced commercial operation
The renovation has increased the power output from 121 MW prior to the retrofit to 129 MW, making it the largest single-unit geothermal power unit in Indonesia, as the country seeks to add 42.6 GW of renewable energy by 2034, reaching a 34.3% renewable share in the energy mix.
The retrofit project involved a partial upgrade of facilities using steam turbines manufactured by MHI's Nagasaki Shipyard & Machinery Works in Nagasaki. Mitsubishi Power handled the design, manufacturing, and installation support, with local subsidiary PT. Mitsubishi Power Indonesia carrying out the on-site installation work through turnkey project execution.
Mitsubishi Power and SEG also signed a Technical Study and Cooperation Agreement (TSCA) to explore using the latest maintenance technologies to increase steam turbine output and enhance the plant's reliability and availability. This will see Mitsubishi Power Indonesia introduce the latest technologies from MHI Group to maximise the asset value of the power plant. These initiatives are based on the Innovative Total Optimization (ITO) strategy adopted by MHI Group, which aims to provide ongoing value to customers throughout the equipment lifecycle.
Shigeo Yakushijin, executive vice president, Mitsubishi Power, said, "The retrofit of Unit 3 at the Darajat Geothermal Power Plant increased the power output while achieving operational performance exceeding guaranteed values and was completed in a short timeframe without any safety incident. In particular, by adopting innovative construction methods that leverage our expertise as the original designer and manufacturer, and through turnkey project execution, we significantly shortened the construction period, which we believe demonstrates the new value delivered to customers. With its cutting-edge technology and local service structure, MHI Group will continue to be a trusted partner for customers."