Solar energy technologies harness sunlight to generate electricity or heat. The most common method is through solar panels, which convert sunlight into electricity using photovoltaic cells. These panels can be installed on rooftops or in large solar farms, making them versatile for both residential and commercial use. Another technology is solar thermal energy, which captures heat from the sun to produce hot water or steam. This method is often used in solar water heaters and concentrated solar power systems. Both technologies contribute to reducing reliance on fossil fuels and lowering greenhouse gas emissions.