Solar panels directly convert sunlight into electrical energy through the photoelectric effect or photochemical effect. Solar cells, also known as "photovoltaic cells," are thin sheets of semiconductor material that directly generate electricity from sunlight. When exposed to light that meets certain illumination conditions, they instantly output voltage and generate current if a circuit is present. Solar panels (modules) only have the function of converting light into electrical energy, but they do not have energy storage capabilities. The converted energy is stored in batteries.

Advantages:

1. Environmentally friendly – No fuel consumption, and electricity is generated as long as there is sunlight.
2. No greenhouse gas emissions or noise – Simple to use.
3. No special maintenance required – Long service life.
4. Low long-term usage cost.