Most solar companies set the price according to the solar system's wattage. A solar installation's “cost per watt” is a little like the “price per square foot” when you buy a house.

Now, small and effective solar panels have made it a lot easier to light up an outdoor space, and Walmart is doing its part to make it even more accessible with this $60 price cut on a 16-pack of ...

The price of panels has dropped in recent years, just as electricity prices have shot up. Scaffolding and labour prices have also risen, but solar can still make a good investment for many families.