no-cost solar panels are rarely completely free in the long run. Know that solar panels are never technically free, but there are ways to market solar panels this way and remain legitimate.

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. The idea of solar panels that don’t need sunlight might sound crazy, but it’s not ...

Know that solar panels are never technically free, but there are ways to market solar panels this way and remain legitimate.