How does solar work?

Photovoltaic cells turn sunlight into electricity, and an inverter converts it into power a home can use. Extra energy can return to the grid or charge a home…

Photovoltaic cells turn sunlight into electricity, and an inverter converts it into power a home can use. Extra energy can return to the grid or charge a home battery for nighttime.

Why understanding solar power helps you judge it fairly

Solar can sound like magic until you follow the path the electricity actually takes. Once you see that sunlight first becomes direct current in the panels, then usable alternating current through an inverter, the whole system gets easier to picture. That picture helps you ask better questions and understand why shade, roof direction, and battery storage change what a system can really do.

What to do, step by step

1. Start at the panels: photovoltaic cells absorb sunlight and produce direct current, or DC, electricity whenever light reaches them.
2. Follow the power to the inverter, which converts that DC into the alternating current, or AC, your lights and appliances use.
3. Use the electricity in your home first, while the sun is shining and the system is producing.
4. Let extra power go where your setup allows: back to the grid, or into a home battery for later.
5. Draw on that stored battery power after dark, instead of expecting the panels themselves to work at night.