Why solar makes sense (or doesn't) in District of Columbia
DC has one of the most valuable SREC markets in the country, often $300+ per MWh.
Avg residential rate17.5¢ / kWh
Avg system cost$3.05 / W ($25,925 for 8.5 kW)
Peak sun hours / day4.4
Net meteringFull Net Metering
State tax creditNone
Federal tax credit30% (Residential Clean Energy Credit, through 2032)
Property tax exemptionYes
Sales tax exemptionYes
District of Columbia payback by monthly electric bill
The bigger your current bill, the faster solar pays back. Here's how the numbers work out for a typical District of Columbia home:
Monthly bill
System size
Gross cost
Federal credit
State credit
Net cost
Year-1 savings
Payback
$100
5.2 kW
$15,860
−$4,758
$0
$11,102
$1,140
8.8 yr
$150
7.8 kW
$23,790
−$7,137
$0
$16,653
$1,710
8.8 yr
$200
10.4 kW
$31,720
−$9,516
$0
$22,204
$2,280
8.8 yr
$300
15.6 kW
$47,580
−$14,274
$0
$33,306
$3,420
8.8 yr
Assumes 95% bill offset, 3% annual rate inflation, 0.5% annual panel degradation, and a 25-year system life.
Calculate your exact District of Columbia solar payback
Enter your real monthly electric bill to see your personalized payback estimate.
Best path forward in District of Columbia
The fastest, free way to see real installer quotes for your roof is to use a marketplace like EnergySage. You'll get up to 4 competing bids from local pros without phone harassment.
Frequently asked questions about solar in District of Columbia
How long does it take for solar panels to pay for themselves in District of Columbia?
For a typical District of Columbia home with a $150/month electric bill, a 7.8 kW system pays for itself in about 8.8 years. Higher bills (or higher state incentives) shorten this; lower bills lengthen it.
What's the average cost of solar panels in District of Columbia?
District of Columbia installers average $3.05 per watt before incentives. A typical 8.5 kW system costs roughly $25,925 gross, or about $16,653 after federal and state credits.
Does District of Columbia offer a state solar tax credit?
District of Columbia does not offer a state-level solar tax credit. However, the 30% federal Residential Clean Energy Credit still applies, and there may be utility rebates in your service area.
Does District of Columbia have net metering?
Yes — District of Columbia has full retail net metering, meaning you get one-for-one credit for any excess solar exported to the grid. This is the most favorable arrangement for solar owners.
Are solar panels worth it in District of Columbia in 2026?
For most District of Columbia homeowners with a monthly electric bill above $100, the answer is yes — payback typically lands between 6.2 and 11.4 years depending on roof orientation, shade, and incentive timing. The 30% federal credit is locked in through 2032, removing a major timing risk.