solar panel A solar panel is a device that converts sunlight into electricity using photovoltaic (PV) cells. Here's a quick summary: Types: Monocrystalline: High efficiency, long lifespan, more expensive. Polycrystalline: Lower efficiency, cheaper. Thin-film: Lightweight, flexible, lower efficiency, cheaper. How It Works: Sunlight hits the PV cells, generating electrical current (DC), which is converted into AC power by an inverter for household use. Benefits: Renewable energy source. Reduces electricity bills. Environmentally friendly (low carbon footprint). Low maintenance. Can be paired with battery storage for energy independence. Lifespan: Most panels last 25-30 years with minimal maintenance. Efficiency: Varies from 10% to 22%, with monocrystalline being the most efficient. Installation: Requires site assessment, permits, and professional installation.