Solar Panel Cost in District of Columbia (2026)
In District of Columbia, home solar installs for roughly $3.00/watt in 2026. A typical 8 kW system runs about $24,000, with an estimated payback near 9.2 years at the state's ~25¢/kWh electricity rate.
| System size | Est. cost | Est. annual savings | Payback |
|---|---|---|---|
| 6 kW | $18,000 | $2,000/yr | 9.2 yrs |
| 8 kW | $24,000 | $2,600/yr | 9.2 yrs |
| 11 kW | $33,000 | $3,600/yr | 9.2 yrs |
Estimates use ~$3.00/watt installed and District of Columbia's ~25¢/kWh rate. Before any state/local incentives.
District of Columbia solar notes
D.C. has the nation's most valuable SRECs (often $350–$450 per MWh) thanks to a strict solar carve-out in its renewable standard, dramatically shortening payback despite high install costs.
Heads up: the 30% federal tax credit for purchased home solar ended Dec 31, 2025. Leased/PPA systems may still qualify through 2027, and District of Columbia may offer its own incentives — check locally.
Get a personalized estimate for your bill
Open the solar calculator →