How long is solar payback in District of Columbia?

Solar payback in District of Columbia typically runs 7–12 years depending on your electricity rate, system size, sun hours, and whether you qualify for the federal 30% Investment Tax Credit plus any District of Columbia state incentives. Use the calculator above for a personalized estimate.

What solar incentives are available in District of Columbia in 2026?

All District of Columbia homeowners qualify for the federal 30% Solar Investment Tax Credit (ITC) on the gross system cost. District of Columbia may also offer a state tax credit, rebates from your utility, or favorable net metering. See the calculator inputs above for District of Columbia-specific values.

Is net metering available in District of Columbia?

Net metering rules vary by state and utility. District of Columbia has its own rules — full retail credit, time-of-use rates, or buyback programs. The calculator above factors in District of Columbia's effective net metering value when estimating your monthly bill offset.

How many sun hours does District of Columbia get?

District of Columbia's average peak sun hours per day (NREL TMY3 data) determines how much solar your system can generate. The calculator above uses District of Columbia-specific irradiance to size the system from your monthly electricity bill.

Should I buy solar panels or lease them in District of Columbia?

Buying outright (cash or loan) means you own the energy, but there is no longer a federal tax credit for homeowner-owned systems - Section 25D ended after December 31, 2025. Any District of Columbia state or utility incentive may still apply. Leasing or a PPA can still capture the 30% credit under Section 48E - the installer claims it and passes the value on through lower payments - for systems placed in service by the end of 2027. For long-term value in District of Columbia, ownership almost always wins.

Solar Payback in District of Columbia (2026)

CCalcCottage

By Meraj Uddin Provat · Last reviewed May 23, 2026 · Editorial Standards

DC has decent solar economics. The DC Solar for All program subsidizes solar for income-qualified residents. Active SREC market — DC SRECs trade among the highest nationally ($400+/MWh historically). Federal 30% ITC + sales tax exemption.

Use the calculator below — your state is already selected. Adjust your monthly electric bill and system cost for a District of Columbia-specific payback estimate.

Solar Payback Calculator (by State)

Estimate your system size, total cost after incentives, and break-even year for residential solar.

State

Monthly electric bill Average across the year. Used to size the system.

Your electricity rate ($/kWh) Auto-filled from state average. Override with your real rate from your utility bill.

System cost ($/Watt) 2024 national avg ~$2.85/W gross, before incentives. Quotes range $2.50-3.50.

Financing

Utility rate inflation (% / yr) US average ~2.8% over last 25 years. EIA forecasts ~3% through 2050.

Estimated payback period

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Select your state to get a precise estimate.

System size

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25-year savings

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Net cost after credits

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Year-1 savings

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Cost breakdown

Net out-of-pocket

Get free solar quotes from local installers

Estimates only. Real solar quotes depend on your roof, shading, local installer pricing and utility net-metering policy. The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, so no federal credit is applied. A lease or PPA may still capture it through the installer under Section 48E for systems placed in service by the end of 2027. Not financial advice.

Cumulative savings vs. system cost

When the green line crosses the dashed cost line, you've broken even.

District of Columbia solar specifics

1. Federal tax credit (expired)

The 30% federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025 under the One Big Beautiful Bill Act. A homeowner buying a system outright in 2026 gets no federal credit. A solar lease or power purchase agreement can still capture the 30% credit under Section 48E — the installer claims it and passes the value on through lower payments — for systems placed in service by the end of 2027.

2. State and utility programs

DC SRECs trade higher than most states due to aggressive RPS requirements. Solar for All program for low-income residents.

2026 District of Columbia solar economics

Typical 7 kW system: gross ~$19,600. With no federal credit available in 2026, net cost is the full ~$19,600. Annual production ~9,772 kWh. Annual savings at $0.17/kWh: ~$1,370. Simple payback ~14 years, up from about 10 when the 30% credit applied.

How to use the District of Columbia solar calculator above

The state is pre-selected. Adjust if needed.
Enter your typical monthly electric bill (averaged across the year).
The calculator auto-fills your state's average electricity rate and peak sun hours — override the electricity rate with your real $/kWh from your bill if you know it.
Adjust the system cost per watt based on quotes from local installers. District of Columbia averages are typically within the $2.50–$3.50/W range for cash installs.
The output shows estimated system size, net cost after federal and state credits, year-1 savings, and 25-year cumulative savings.

Reviewed by the CalcCottage editorial team. Updated May 14, 2026. Estimates only — not financial advice. Verify current incentives at DSIRE.org before installing.

Solar Payback in District of Columbia: 2026 State-Specific Math