Renewable energy, sometimes called clean energy, comes from naturally occurring processes or sources that replenish over time. Sunlight, wind, rain, tides, waves, and geothermal heat are some of these sources. Renewable energy sources are sustainable and have a much smaller environmental impact than fossil fuels, which are limited and release greenhouse gases that affect global warming. To combat global warming, cut pollution, and guarantee a stable and sustainable energy future, the switch to renewable energy is essential. Renewable energy is not novel; ancient societies have long utilized wind and water power. For instance, waterwheels propelled machinery, while windmills were utilized for grain processing and water pumping. However, the 20th century saw the emergence of the contemporary renewable energy sector, propelled by developments in economics, environmental consciousness, and technology. The 1970s oil crisis and mounting worries about climate change and air pollution have expedited the transition to renewable energy sources.