How do solar panels work?

Wondering if it's worth installing solar panels or solar water heating in your home? Watch our video to find out how solar panels work, including whether they can generate enough energy to take you off grid. To find out the solar panels that impressed their owners, visit http://bit.ly/2VPajMs Which?: http://www.which.co.uk Twitter: https://twitter.com/whichuk Facebook: http://bit.ly/1fAOmna