A single solar cell cannot be used directly as a source of energy. To realize a power supply, several individual cells must be connected in series, in parallel and tightly sealed within the components. Solar panels (also called solar cell modules) are the essential part of the solar power generation system and the most important part of the solar power generation system.
The energy production of 1 square meter of solar panels depends on the photoelectric conversion efficiency of the solar panels. The current general efficiency of crystalline silicon solar cells is 14%, which means that one square meter can generate 140 peak watts of electricity. Amorphous silicon solar cells are now typically 6%, meaning a square meter can generate 60 watts of peak power.