The key to getting off the grid is replacing electricity
supplied by a power plant with a renewable energy
source, like wind or solar power. Buildings that use solar power have solar panels on the roof or
near the building. When the sun’s light hits the panels, the panels collect the energy. Wind power is
collected by turbines, also known as windmills. When the wind blows, the blades move, producing
energy which is turned into electricity by a generator.