SUNation, LIPA and you…how the solar process works.  

Every day, enough energy falls on the earth to provide 27 years worth of power for every inhabitant -- harnessing that energy is the challenge. With a SUNation system, sunlight is collected by roof-mounted solar modules. You use the power your SUNation system generates and draw power from the power grid when you need it (for example, at night).

During the day, you'll likely generate more power than you need. This excess power is sold back to your utility company via the power grid. In other words, you've become a power company and the utility is your customer. Regarding energy bills, you pay the "net" of what you buy from the power company less what you sell back to them...so this process is called "net metering."

Shrinking Energy Bills

Since you're buying far less electricity and you're making money selling the excess power, your utility bill can decline to a tiny fraction of what it once was; and your power utility will have less demand for power so they can burn less polluting fossil fuels.