SUMMIT Energy Solutions

Wilsonville city reference

Solar in Wilsonville, checked against utility math.

A city-level guide for Clackamas County homeowners comparing quotes, system size, incentive timing, and Portland General Electric billing assumptions.

Reference ZIP
97070
Utility
PGE
Focus
PGE exports + ETO incentives

Local numbers

The Wilsonville baseline

A 7 kW south-facing system in Wilsonville produces about 8,050 kWh/year per NREL PVWatts. Pre-incentive install cost runs $17,850 to $21,000, with cash payback around 9 to 11 years before financing markup.

8,050 kWh/year

Annual production

PVWatts v8, 7 kW south-facing.

~$15,350 to $18,500

Net cash cost

After incentives, before financing.

9 to 11 years

Cash payback

No dealer-fee markup.

15 to 20 years

Financed payback

With typical dealer fees.

Utility context

The bill rules are local.

Most of Wilsonville 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.

PGE Clackamas County Verified 2026-05-29