You don't have to install solar panels on your tiny home, but this does not mean that you shouldn't. In fact, once you weigh the pros and cons, you will probably find that installing solar panels on your tiny home is a great idea. These are a few reasons why. Reduce Building Costs If you're setting up your tiny home permanently or semi-permanently on a piece of land, you might be concerned about how much it's going to cost to run electricity to the tiny home.