Find out if net-metering is available in your area. Net metering allows you to feed power that your system generates into the electrical grid and get paid for that power. This allows you to use the grid as a battery, which saves the cost and hassle of installing and maintaining a battery system. (Without batteries, however, you won’t have back-up power to use in a power failure or idle periods). Typical PV, wind and other on site systems generate DC current which has to be stored for future use and converted to AC current for onsite application. This is one of the biggest barriers to generating onsite electricity as battery storage is expensive, inefficient and hazardous. Now, many utilities allow excess electricity to be supplied into the grid, thus eliminating the need of an onsite battery. Confirm whether if your project site is connected to a utility or grid-tied where net metering is available.