The term renewable energy gets tossed around frequently in today’s conversations, especially as more people are growing more environmentally conscious. So what is it, exactly? Renewable energy is natural, can’t run out, and serves as an alternative to fossil fuels. That’s also why the terms “alternative energy” and “renewable energy” are used interchangeably: because they serve as an alternative to energy from fossil fuels. Overall, renewable energies are much better for the environment, given the smaller footprint and less pollution. They’ve become so popular in recent years, too, that renewable energy can no longer be considered “alternative.” http://blairsergeant.net/introduction-to-renewable-energy/