Solar Power Satellites are spacecraft designed to collect solar energy in space and transmit it back to Earth. They capture sunlight using large solar panels and convert it into electricity, which can then be sent to power stations on the ground through microwave or laser beams. These satellites offer a potential solution for renewable energy, as they can operate continuously without the interruptions caused by weather or day-night cycles. By harnessing solar energy from space, Solar Power Satellites could help reduce reliance on fossil fuels and contribute to a more sustainable energy future.