Solar in Lake Oswego, OR
With Portland General Electric's electricity at about 18.8¢ per kWh and 1,116 kWh of sun per kW, solar is worth it for a typical Lake Oswego home today: about a 11.1-year payback.
- Payback, typical home
- 11.1 yrsOregon: 14.2 yrs
- 25-year net
- $33,552after paying $16,790
- Sun
- 1,116kWh per kW per year
- Electricity
- 18.8¢5% above U.S. average
A typical Lake Oswego home, by the numbers
| Utility | Portland General Electric |
|---|---|
| Electricity use | 753 kWh a month |
| Best-value system | 7.3 kW, about 17 panels, 8,145 kWh a year (90% of use) |
| Cost | $20,290, or $16,790 after state incentives |
| First-year savings | $1,430 |
| Payback | 11.1 years |
| Exported power | 15¢/kWh (Portland General Electric) |
Cash purchase, no federal credit, 3.8% yearly rate increases. Run it with your own numbers.
Homes in Lake Oswego
- Owner-occupied homes
- 69%
- Single-family detached
- 61%
- Median home value
- $932k
- Median year built
- 1982
- Population
- 40,381
- Solar installs, last 3 years*
- 4
Census ACS 2020–2024. *Installations in public records for this area's ZIP codes.
Installers working in Lake Oswego
Companies with the most installations in Lake Oswego's ZIP codes over the last 3 years, from public records. We don't take payment for placement.
- Earthlight Technologies 2 installs
- Dpi Solar Dynamic Power Innovation 1 installs
- Sunbridge Solar 1 installs
Always verify the license and get at least three quotes. Compare quotes side by side.
Questions about solar in Lake Oswego
Is solar worth it in Lake Oswego, OR?
For a typical home in Lake Oswego, solar is worth it at 2026 prices: a 7.3 kW system costs about $16,790 after state incentives, saves about $1,430 in year one and pays back in about 11.1 years. Enter your address for an estimate based on your roof and bill.
How much solar power does a system produce in Lake Oswego?
About 1,116 kWh per year for each kW of panels on a south-facing roof, based on PVWatts and local weather. That's 5% less than the Oregon average. East- or west-facing roofs produce roughly 10–20% less.
Who is the electric utility in Lake Oswego?
Most homes in Lake Oswego are served by Portland General Electric, at about 18.8¢ per kWh on average.
How much do solar panels cost in Lake Oswego?
A fair cash price is around $2.80 per watt before incentives, so about $20,290 for a 7.3 kW system. There's no federal tax credit for homeowners who buy in 2026.
Nearby
- Tigard 10.9 yrs
- West Linn 11.1 yrs
- Tualatin 10.8 yrs
- Beaverton 10.8 yrs
- Oregon City 10.8 yrs
- Wilsonville 10.8 yrs
- Portland 11.1 yrs
- Happy Valley 11 yrs
- All of Oregon
Data: PVWatts (National Laboratory of the Rockies), EIA-861 2025 adjusted to 2026, U.S. Census ACS, LBNL Tracking the Sun, state policy research as of October 2026.