The wind-solar complementary power generation system combines wind turbines and solar PV arrays as two types of power generation devices. It is mainly divided into off-grid and grid-connected types. Wind power generation and photovoltaic power generation are one of the most mature ways in respect of the wind and solar energy development and utilization, wind and solar complementary power generation can effectively use space and time. Off-grid systems utilize solar PV arrays and wind turbines to store generated electricity in battery. Understanding the spatiotemporal complementarity of wind and solar power generation and their combined capability to meet the demand of electricity is a crucial step towards increasing their share in power systems without neglecting neither the security of supply nor the overall cost efficiency of. Overall Structural Framework of the Model The wind-solar-hydro-storage multi-energy complementary system is an intelligent coordinated energy supply system that integrates multiple energy forms such as wind energy, solar energy (hydropower, photovoltaic), hydropower, and electrochemical energy. Solar photovoltaics (PV) and wind power have been growing at an accelerated pace, more than doubling in installed capacity and nearly doubling their share of global electricity generation from 2018 to 2023.
