1. A photovoltaic power generation system consists of solar panels, charge controllers, batteries, and inverters. Solar panels convert solar energy into direct current (DC), charge controllers store the DC in batteries, and inverters convert the DC into alternating current (AC) for use.
2. Photovoltaic panels can be made of monocrystalline silicon, polycrystalline silicon, or amorphous silicon. Monocrystalline silicon has the highest efficiency but is the most expensive; polycrystalline silicon has slightly lower efficiency but lower cost; amorphous silicon has the lowest efficiency but the lowest cost.
3. The efficiency of a photovoltaic panel refers to the ratio of the solar energy converted into electricity. The highest efficiency photovoltaic panels currently available can achieve over 25% efficiency.
4. Photovoltaic power generation systems can be connected to the grid or operate independently. Grid-connected systems can sell excess electricity to the grid, while independent systems need to store electricity for use at night or on cloudy days.
5. Photovoltaic power generation is a clean energy source that does not produce harmful substances such as carbon dioxide, making it environmentally friendly.
6. Photovoltaic power generation can be used for electricity supply in areas such as households, industry, and agriculture. In some remote areas, photovoltaic power generation can be the only source of electricity.
7. Photovoltaic power generation systems require regular maintenance, including cleaning the solar panels, checking the batteries, and replacing inverters.
8. The cost of photovoltaic power generation is gradually decreasing, making it more and more popular.