Electric Power Development Co., Ltd. (J-POWER, headquartered in Chuo-ku, Tokyo; President: Toshifumi Watanabe) announced that the Suezawa Hydroelectric Power Station (Niigata Prefecture, Japan) began modernization (renovations) of the main facilities, including the water turbine and generators, on April 19, 2023.

The Suezawa Hydroelectric Power Station has been in operation since 1958, and with over 60 years having passed, the equipment has aged. J-POWER will comprehensively update the main facilities, such as the water turbine and generators, to improve reliability, to rationalize operations, and to save on labor costs. By introducing a new type of water turbine (developed inhouse), the maximum water intake will be increased from 6.2 tonnes to 8.6 tonnes per second.

This upgrade will boost the power output from 1,500 kW to 2,200 kW and increase the amount of electricity generated. Completion of construction and resumption of operations are scheduled for November 2024. With the understanding and cooperation of local residents and other related parties, J-POWER will begin construction that will both preserve the environment and put safety first.

J-POWER has implemented five modernization constructions, and the Suezawa Power Station is the sixth project. The J-POWER Group is committed to expanding the introduction of renewable energy projects to achieve carbon neutrality, as stated in JPOWER BLUE MISSION 2050 in February 2021.

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