Effects of Enhanced Water Level Operation Conducive to Power Generation at Shorenji and Hinachi Dams - Increase in electricity amount equivalent to 640 households per month

Since the flood season of 2023 (Note 1), the Japan Water Agency (“JWA”) and Chubu Electric Power Co., Inc. (“Chubu Electric Power”) have been engaged in enhanced water level operation (Note 2) (trial operation to increase power generation using existing dams) for power generation at the Shorenji and Hinachi Dams managed by JWA.

As a result of this operation during the period from August 16 to October 15, 2023, the Shorenji Hydroelectric Power Station and Hinachi Hydroelectric Power Station were able to generate approximately 140MWh and 27MWh more, respectively, than under normal dam operation.

This is equivalent to the amount of electricity consumed by approximately 640 households per month (Note 3).

JWA and Chubu Electric Power together will continue to contribute to the realization of a decarbonized society through the effective use of limited water resources.

(Note 1) Periods of high rainfall and flooding, such as the rainy season and typhoon season. At the Shorenji and Hinachi Dams, it is from June 16 to October 15.

(Note 2) A trial initiative to effectively generate power at Chubu Electric Power's Shorenji and Hinachi hydroelectric power stations by discharged water from the adjacent dams. The water is temporarily stored when flood control is performed or when swollen water does not lead to flooding, with the latest weather forecasting technology to the extent that it does not interfere with flood response and water utilization.

(Note 3) Estimated monthly electricity consumption of an average household is 260 kWh.