Solar panels are an affordable way for homeowners to reduce their monthly utility bills and support renewable energy. According to the EPA, solar panels can cut your home’s energy costs by up to 40% and save you money in the long-term.   But how many solar panels are needed to power an average house? The average home uses about 1,000 kilowatt hours of … [Read more...]

A solar panel is often expensive. To avoid buying it, find out here how to build it by yourself ... with soda cans! John, who needed extra heat for his house, decided to build his own solar panel. The idea? Cans, assembled in long tubes, accumulate air that heats up when the sun shines and then blows into the house (here is a diagram to better understand the … [Read more...]