NTT West Begins Utilizing Environmental Value from Geothermal Power Plant in Kumamoto via Virtual PPA

NTT West Corporation announced that it will begin utilizing 'environmental value' derived from a geothermal power plant for its buildings in Kumamoto Prefecture starting in June 2026, as a symbolic initiative for its sustainability management. This project is realized in collaboration with NTT Anode Energy Corporation. Specifically, it utilizes the environmental value generated by the Waita No. 2 Geothermal Power Plant, operated by a special purpose company established with 100% investment from Furusato Heat & Power Co., Ltd., which is backed by NTT Anode Energy. Through the reduction of greenhouse gas emissions, the company aims to achieve both a decarbonized society and sustainable business growth. Under the NTT Group's environmental energy vision, 'NTT Green Innovation toward 2040,' NTT West is promoting the use of renewable energy to achieve carbon neutrality by fiscal 2040. As part of this effort, the company will introduce approximately 7.5 million kWh of environmental value annually from the Waita No. 2 Geothermal Power Plant through a long-term Virtual PPA. A Virtual PPA is a mechanism where a power generator and a consumer enter into a long-term contract to purchase environmental value derived from renewable energy. Since no physical electricity is traded, there is no need to change contracts with retail electricity providers. This method allows consumers to effectively promote the use of renewable energy. The introduction is scheduled to begin on June 1, 2026, and run until March 13, 2041. The Waita No. 2 Geothermal Power Plant is located in Oguni-machi, Aso-gun, Kumamoto Prefecture, with an installed capacity of 4,995 kW and an estimated annual power generation of approximately 35 million kWh. The NTT West Group will continue to promote the creation of co-creative decarbonization solutions in collaboration with local communities and customers.