Solar energy is derived ultimately from the sun. It can be divided into direct and indirect categories. Direct solar energy is what we usually mean when we speak of solar power - it is the use of sunlight for heating or generating electricity. This book examines the research in this frontier field.

Focuses on the operation planning of the compound energy system composed of proton exchange membrane fuel cell cogeneration with methanol steam-reforming equipment, a solar module, geo-thermal heat pump, heat storage, water electrolysis equipment, commercial power, and a kerosene boiler.