Solar panels in Oregon
Roofs across Oregon get about 1,406 hours of usable sunlight a year, and electricity costs 12.4¢/kWh. That combination puts a typical system's payback at 13.6 years. Here's the detail, from real rooftop data across 14 Oregon cities.
Check your own roof in Oregon → These are regional figures; your roof's size, pitch and shading move them a lot.
How Oregon compares
Oregon gets more sunlight than 32% of the cities we measure, and its electricity costs more than 21% of states and provinces. Both matter, but not equally: the electricity rate usually matters more, because solar saves money by replacing power you would otherwise buy. A sunny state with cheap power often pays back slower than a cloudy state with expensive power. Why that happens →
Solar by city in Oregon
| City | Sun hrs/yr | Panels | Net cost | Payback |
|---|---|---|---|---|
| Klamath Falls | 1,839 | 18 | $14,364 | 10.6 yrs |
| Bend | 1,656 | 20 | $15,960 | 11.8 yrs |
| Medford | 1,562 | 21 | $16,758 | 12.4 yrs |
| Pendleton | 1,506 | 22 | $17,556 | 13 yrs |
| Corvallis | 1,441 | 23 | $18,354 | 13.6 yrs |
| La Grande | 1,409 | 23 | $18,354 | 13.6 yrs |
| Coos Bay | 1,406 | 23 | $18,354 | 13.6 yrs |
| Salem | 1,398 | 23 | $18,354 | 13.7 yrs |
| Eugene | 1,386 | 23 | $18,354 | 13.7 yrs |
| Hillsboro | 1,317 | 25 | $19,950 | 14.8 yrs |
| Beaverton | 1,302 | 25 | $19,950 | 14.8 yrs |
| Portland | 1,258 | 26 | $20,748 | 15.4 yrs |
| Gresham | 1,257 | 26 | $20,748 | 15.4 yrs |
| Astoria | 1,152 | 28 | $22,344 | 16.6 yrs |
What a system costs in Oregon
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 3,824 | $6,384 | $474 | 13.5 yrs |
| 12 panels | 4.8 kW | 5,736 | $9,576 | $711 | 13.5 yrs |
| 16 panels | 6.4 kW | 7,649 | $12,768 | $948 | 13.5 yrs |
| 20 panels | 8 kW | 9,561 | $15,960 | $1,186 | 13.5 yrs |
| 26 panels | 10.4 kW | 12,429 | $20,748 | $1,390 | 14.9 yrs |
Payback stops improving as systems grow, then gets worse. You can only save on electricity you were going to buy, so once a system covers your usage the extra panels mostly export at a lower rate.
Oregon solar incentives
Every US household can claim the 30% federal residential clean energy credit, which is what the "after credit" figures above assume. On a $26,220 system that is $7,866 back. How the credit works →
State, utility and municipal incentives stack on top and change often — Oregon may offer rebates, property or sales tax exemptions, or performance payments. We deliberately don't list specific state programmes here because they change several times a year and stale numbers are worse than none. The DSIRE database is the standard reference and is kept current.
Oregon solar questions
Is solar worth it in Oregon?
At 12.4¢/kWh and 1,406 usable sun hours, a typical Oregon system pays back in about 13.6 years and returns roughly $15,277 across a 25-year panel life. That is slower than average, so compare at least three quotes before committing. Individual cities in Oregon vary widely around this average.
How many solar panels do I need in Oregon?
About 23 panels for a home using 10,800 kWh a year. Each 400W panel produces roughly 478 kWh annually at Oregon sunlight levels. Your own figure depends on actual usage — pull a year of bills rather than assuming average consumption, since heating and EV charging change it a lot.
How much do solar panels cost in Oregon?
A 9.2 kW system runs about $26,220 before incentives and $18,354 after the 30% federal credit, or roughly $2.85 per watt installed. Quotes vary widely by installer, roof complexity and whether your electrical panel needs upgrading — get three before deciding.
Worth reading before you buy
Regional estimates generated 2026-08-22 from Google Solar API rooftop samples across 14 Oregon cities, and average Oregon electricity rates. Not a quote and not financial or tax advice.