Free Calculator — No Address Required

What Will Waiting Cost You?

Enter your monthly Pepco bill. See what staying on Pepco's rate costs you over the next 10 years — versus locking in a solar rate today. Pepco's rate has gone up almost every year for the last decade.

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, up ~3% annually over the last decade. Locked-in solar rate is fixed at $0.10/kWh with no yearly increase — the same assumption used in our real proposals.

What you'll pay Pepco over 10 years if you wait
$0
Enter your bill to see numbers
Locked-in solar cost (10 yrs)
Flat rate — no yearly increases
The cost of waiting
Pepco cost minus locked-in solar cost
System size needed
Today's Pepco rate
The assumptions behind these numbers
Pepco's rate rises with your utility bill every year. A solar rate is fixed the day you sign — the same $0.10/kWh flat assumption used in our real proposals.

Want to lock in your rate today?

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).

Pepco cost over 10 years = your annual bill compounded by the assumed annual rate increase (default 3%/yr), summed across 10 years — reflecting Pepco's historical pattern of raising rates.

Locked-in solar cost over 10 years = your annual production (kWh) × a flat $0.10/kWh solar rate, summed across 10 years with no yearly increase — sourced from the same PPA rate assumption our real proposals use by default.

The cost of waiting = Pepco cost over 10 years minus the locked-in solar cost over 10 years.

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