Received an order for hot well pumps for the Muara Laboh Unit 2 Geothermal Power Plant in Indonesia from Fuji Electric Co., Ltd. [Orders Received in July 2025]

The Muara Laboh Geothermal Power Plant is operated by PT. Supreme Energy Muara Laboh, a private power producer in Indonesia, and is located in South Solok County, West Sumatra. Unit 2 (80 MW) will be constructed adjacent to Unit 1 (85 MW), which commenced commercial operation in December 2019. Upon completion, the plant will become a large-scale geothermal power plant with a total generating capacity of approximately 170 MW.

Indonesia has approximately 130 active volcanoes and possesses the world’s second-largest geothermal energy resources. Current geothermal power generation capacity stands at about 2,400 MW, ranking third globally. However, the country has set a policy goal to expand capacity to 5,800 MW by 2030, aiming for the world’s top position.

At this power plant, steam exceeding 200°C extracted from underground magma drives turbines, generating electricity via directly connected generators. Geothermal power generation is gaining attention as a renewable energy source with extremely low CO2 emissions, contributing to sustainable energy supply. The hot well pump, one of the key components of this geothermal power plant, circulates the hot water condensed from geothermal steam after passing through the turbine from the condenser to the cooling tower. To meet the severe suction conditions, an
integrated vertical barrel (suction pit) structure and a low-NPSH impeller are employed. Geothermal steam is highly corrosive, so special stainless steel with high durability is used for wetted parts.

Torishima’s geothermal hot well pumps have been delivered to over 30 power plants worldwide, including locations in Japan, Indonesia, Türkiye, the Philippines, Mexico, Kenya, and New Zealand, and all are operating smoothly. Our extensive track record, product quality, and comprehensive after-sales service system were highly evaluated, leading to this order.

In this project, Fuji Electric Co., Ltd. manufactures key equipment such as geothermal steam turbines and generators, while Japanese companies also provide technical support for financing institutions and well drilling. This project truly represents the combined strength of Japanese technology, project execution capabilities, and financial resources.

Torishima will continue to strengthen its trust-based relationships with Asian countries through the high-quality infrastructure partnership promoted by the Japanese government. We will also contribute to realizing a sustainable energy society through our pump technology.