How many roofs with solar panels to save on your electricity bill?
I saw houses that had their roofs covered with solar panels. How much can you save on your electricity bill on this?
The savings will depend on various factors. If you live in the southwestern United States, you can make money by selling surplus electricity back to the company electricity, namely your meter run backwards. The initial cost is often what prevents most people install them, it can be more than $ 10,000 or more. For most other areas you'll probably break even with the power company. They are great in hot weather sunny and you can keep your house cool during the day and it will not cost you anything in electricity. At night, however, remember that you will receive power from the grid.