Solar Panel Cost in District of Columbia (2026)
Installed solar in District of Columbia runs about $3.00 per watt — roughly 16% above the national average of $2.58/W. With the federal residential tax credit (25D) gone as of 2026, payback here rests on a $0.24/kWh power price and 4.4 daily peak sun hours.
Worked example: a typical $150/month home in District of Columbia
A $150/month electric bill in District of Columbia works out to about 7,660 kWh a year. Sizing a cash-purchase system to cover 100% of that:
Last updated June 30, 2026
District of Columbia solar numbers
- Installed price
- $3.00 / watt
- Electricity price
- $0.24 / kWh
- Peak sun hours
- 4.4 hrs/day
- State incentive
- 0%
- Net-metering value
- 100% of retail
$/W: industry pricing surveys · electricity: U.S. EIA, 12-month average through April 2026 · sun hours: NREL.
Local context: DC's SREC prices are among the highest in the country, dramatically boosting solar returns.
Estimate your own District of Columbia system
Adjust the bill, ownership, and battery options below — it's pre-set to District of Columbia's pricing and sun hours.
Monthly shape modeled with NREL PVWatts® v8 (NSRDB 2020 TMY) — updated July 18, 2026.
Electricity 23.5¢/kWh — U.S. EIA, 12-month average through April 2026.
Data: U.S. EIA · OpenEI URDB · Google Solar · NREL PVWatts · DSIRE · IRS · ENERGY STAR · industry surveys — see all sources