The monthly measured streamflow data recorded at Tangnaihe hydrological station were chosen to represent the monthly inflow data of the hydropower plant. Meteorological data including daily solar duration, temperature, and wind speed data in Gonghe station were provided to calculate the monthly PV power output and wind power output.

Meteorological data including the daily solar duration, temperature, and wind speed data are from the China Meteorological Administration (http://data.cma.cn/); Streamflow data recorded at Tangnaihe hydrological station were provided by the China Yellow River Conservancy Commision.