1. Family field: Solve civil life electricity, such as lighting, TV, radio, etc.; 2. Transportation field: traffic signal lights, street lights, high-altitude obstacle lights, highway/railway wireless telephone booths, unattended power supply, etc.; 3. Communication field: microwave relay station, optical cable maintenance station, etc.; temperature greenhouse cultivation, aquaculture, animal husbandry, etc.; 4. Environmental field: meteorological, astronomical observation equipment, etc., marine detection equipment, meteorological/hydrological observation equipment, etc.; 5. Agricultural field: such as constant; 6. Industrial field: 10KW-50MW independent photovoltaic power station, various large parking plant charging piles, etc 7. Commercial field: combining solar power generation with building materials for large-scale buildings to achieve electricity self-sufficiency;