6 kW system cost and incentives for District of Columbia.
A typical 6 kW home solar system in District of Columbia costs about $25,200 before incentives, or roughly $17,640 after the 30% federal tax credit.
Local pricing and sun hours change the math. Size your system and estimate cost in the solar cost calculator and system size calculator.
The 30% federal credit applies everywhere (see the tax credit calculator); District of Columbia may add state or utility incentives. Check payback against your electric rates in the savings calculator.