The solar panel (also called solar cell module) is an assembly of multiple solar cells, which is the core part of the solar power system, and it is also a very important part of the solar power system. 1. Solar power for users (1) Small power supplies ranging from 10 to 100W, used in remote areas without electricity, such as plateaus, islands, pastoral areas, border posts, and other military and civilian life electricity, such as lighting, TV, radio cassette recorders, etc.; 　　 (2) 3- 5KW home roof grid-connected power generation system; 　　 (3) Photovoltaic water pump: Solve the problem of drinking and irrigation in deep water wells in areas without electricity.　　Second, the field of transportation, such as navigation lights, traffic/railway signal lights, traffic warning/sign lights, street lights, high-altitude obstacle lights, highway/railway wireless phone booths, unattended road shift power supply, etc.　　3. Communication/communication field　　Solar unattended microwave relay station, fiber optic cable maintenance station, broadcasting/communication/paging power system; rural carrier telephone photovoltaic system, small communication machine, soldier GPS power supply, etc.　　Four. Petroleum, marine and meteorological fields　　Petroleum pipeline and reservoir gate cathodic protection solar power supply system, oil rig life and emergency power supply, marine testing equipment, meteorological/hydrological observation equipment, etc.　　5. Power supply for household lamps, such as solar garden lights, street lights, portable lights, camping lights, climbing lights, fishing lights, black light lights, tapping lights, energy-saving lights, etc.　　6. Photovoltaic power station　　10KW-50MW independent photovoltaic power station, wind and solar (diesel) complementary power station, various large parking plant charging stations, etc.　　 Seven, Solar Buildings　　Combining solar power generation with building materials will enable future large-scale buildings to achieve self-sufficiency in electricity, which is a major development direction in the future. 8. Other fields include (1) supporting vehicles: solar vehicles/electric vehicles, battery charging equipment, car air conditioners, ventilators, cold drink boxes, etc.; 　　 (2) solar hydrogen production and fuel cell regenerative power generation system; 　　 (3) seawater desalination Equipment power supply; 　　 (4) satellites, spacecraft, space solar power stations, etc.