Compare price and performance of the Top Brands to find the best 40 kW solar system. Buy the lowest cost 40 kW solar kit priced from $1.15 to $1.90 per watt with the latest, most powerful solar panels, module optimizers, or micro-inverters. For home or business, save 26% with a solar tax credit.
[pdf] If your home uses a lot of energy, then ground-mounted panels might be better for you. This is particularly true if you have a lot of open space on your property, allowing you to install more solar panels than yo.
[pdf] Grid-tied systems are solar panel installations that are connected to the utility power grid. With a grid-connected system, a home can use the solar energy produced by its solar panels and electricity that comes from the utility grid.
[pdf] 
