Renewable energy development is when people make and use energy from natural resources such as sun, wind, water, and plants. People have learned different ways to capture energy from these sources and turn it into electricity or power for our homes, schools, and businesses. By using renewable energy, we can help our environment because it doesn't use up fossil fuels which come from old plants and animals and can be bad for the air and water. Renewable energy also means we can have more energy without running out, and it's usually cheaper, too!