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DC Solar Savings + SREC Calculator

Enter your monthly Pepco bill. See your estimated solar savings and 10-year DC SREC income. Built specifically for DC homeowners — DC has the highest-value SRECs in the country.

Your bill

Use your average monthly Pepco bill. We'll do the rest.

DC average is around $180–$220. If you're not sure, use a recent summer-month bill.

Adjust assumptions (optional)

Defaults reflect 2025 DC reality: Pepco residential ~$0.16/kWh, DC SRECs trading around $350–$450, Pepco rates up ~3% annually over the last decade.

Estimated 25-year benefit
$0
Enter your bill to see numbers
System size needed
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Monthly savings (PPA)
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From day one, no upfront cost
10-year SREC income
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Federal tax credit
N/A
Residential §25D credit expired 2025-12-31. Commercial ITC (§48E) still applies through 2027 behind lease/PPA structures.
25-year electricity savings
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Includes annual rate increases. Pepco rates rarely go down.

Want exact numbers for your roof?

These are estimates based on DC averages. The 30-second roof check uses your real address, your real bill, and satellite imagery to give you exact production and payback numbers.

Get my exact numbers

Takes 30 seconds. No phone call required.

How these numbers are calculated

System size = (your bill × 12) ÷ Pepco rate ÷ 1,250 kWh-per-kW-year (DC solar production factor).

SREC income = annual production (kWh) ÷ 1,000 × SREC price. DC SRECs are limited to the first 10 years of production under SREC II rules.

Monthly savings (PPA) = ~30% of your current bill on day one. Power Purchase Agreements eliminate upfront cost in exchange for a fixed solar rate below Pepco's retail rate.

25-year electricity savings uses a compounding rate increase (default 3%/yr) applied to your bill, reflecting Pepco's historical pattern.

Federal tax credit: the residential §25D credit expired 2025-12-31 under the One Big Beautiful Bill Act and no longer applies to new owned residential systems. The commercial §48E ITC remains available through 2027 — this is what powers lease and PPA structures, where the installer claims the credit and passes value through as a lower rate.

Estimates only. Actual production depends on roof orientation, shading, and tilt. Real numbers come from a free roof check at /survey.