Sustainable energy is a vital aspect that ensures a healthier future for the planet. This type of energy is renewable and produces little to no emissions, making it environmentally friendly. There are several synonyms for sustainable energy, including clean energy, green energy, renewable energy, and eco-friendly energy. Clean energy refers to energy sources that produce minimal carbon footprints, including solar, wind, and hydroelectric energy. The term green energy implies plant-derived energy and is used interchangeably with renewable energy. Finally, eco-friendly energy is a synonym used to refer to sustainable energy sources that cause little harm to the environment. Overall, these synonyms describe the need to transition to sustainable energy sources to reduce our reliance on non-renewable resources and preserve the planet for future generations.