A specific hydropower facility renewal plan for Units 1 and 2 of the Okuyoshino Power Station, involving the renewal of facilities rated at 201 thousand kW each, with construction targeted to begin in fiscal 2027 or later and operations targeted to commence in fiscal 2031 or later. The plan covers power-generation facility renewals together with the renewal plan for Units 3 and 4 of the Okutadaraoki Power Station.