Renewable energy systems harness energy from natural sources that are constantly replenished. These include solar panels that capture sunlight, wind turbines that convert wind into electricity, and hydropower systems that use flowing water to generate power. Unlike fossil fuels, renewable energy sources produce little to no greenhouse gas emissions, making them a cleaner option for the environment. By utilizing renewable energy systems, we can reduce our dependence on non-renewable resources and combat climate change. These systems are becoming increasingly popular as technology advances, making them more efficient and affordable. Investing in renewable energy not only helps the planet but also creates jobs and promotes energy independence.