SUMMIT Energy Solutions

Sherwood city reference

Solar in Sherwood, checked against utility math.

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

Reference ZIP
97140
Utility
PGE
Focus
PGE exports + ETO incentives

Local numbers

The Sherwood baseline

A 7 kW south-facing system in Sherwood produces about 8,000 kWh/year per NREL PVWatts. Pre-incentive install cost runs $17,850 to $21,000, with cash payback around 10 to 12 years before financing markup.

8,000 kWh/year

Annual production

PVWatts v8, 7 kW south-facing.

~$15,350 to $18,500

Net cash cost

After incentives, before financing.

10 to 12 years

Cash payback

No dealer-fee markup.

16 to 21 years

Financed payback

With typical dealer fees.

Utility context

The bill rules are local.

Most of Sherwood 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 Washington County Verified 2026-05-29