Tax Credits Make the Solar Option Essentially FREE!
Check out the DSIRE TN link for information on Tennessee incentives Check out the DSIRE USA link for information on Federal incentives
Basically right now there is a 30% federal tax credit, which means if you buy a system with solar capability, or add the solar option, you can decrease the amount of tax by 30% of the system purchase price. A $3000 system will decrease your owed taxes by $900. This essentially makes your system cost $2100.