Gresham city reference
Solar in Gresham, checked against utility math.
A city-level guide for Multnomah County homeowners comparing quotes, system size, incentive timing, and Portland General Electric billing assumptions.
- Reference ZIP
- 97030
- Utility
- PGE
- Focus
- PGE exports + ETO incentives
Local numbers
The Gresham baseline
A 7 kW south-facing system in Gresham produces about 7,700 kWh/year per NREL PVWatts. Pre-incentive install cost runs $17,850 to $21,000, with cash payback around 11 to 13 years before financing markup.
7,700 kWh/year
Annual production
PVWatts v8, 7 kW south-facing.
~$15,350 to $18,500
Net cash cost
After incentives, before financing.
11 to 13 years
Cash payback
No dealer-fee markup.
17 to 22 years
Financed payback
With typical dealer fees.
Diagnostic path
Check the Gresham quote from four angles.
Start with fit, then pressure-test price, incentives, and installer risk before a homeowner signs.
- 01 Is it worth it? → Diagnostic: how to know if your Gresham home is a good fit for solar, and what to verify before signing. Real production numbers, current rates, no inflated assumptions.
- 02 Typical cost and payback → Sized for a Gresham median home, with Portland General Electric-adjusted production from NREL PVWatts and current Standard retail-rate net metering rates.
- 03 Incentives → Energy Trust of Oregon (ETO) values plus Portland General Electric programs. Federal credit context after the December 2025 expiration.
- 04 How to pick an installer → Educational buyer's guide for Gresham: red flags, what to verify, questions to ask before signing.
Utility context
The bill rules are local.
Most of Gresham is served by Portland General Electric. Net metering, rate trajectory, and program timing differ by utility; the Oregon state hub covers the cross-utility picture.