The main source of renewable energy is solar energy. Solar energy harnesses sunlight through technologies such as photovoltaic cells and solar thermal systems to generate electricity or heat. This energy source is abundant, sustainable, and increasingly cost-effective, with advancements in technology improving efficiency and accessibility. Solar energy plays a crucial role in reducing greenhouse gas emissions and dependence on fossil fuels, making it an essential component of efforts to combat climate change. As households and businesses turn to solar energy solutions, it contributes to energy independence and promotes a cleaner, more sustainable future for the planet.