Solar Panels in Portland, OR
Portland gets 3.5 peak sun hours/day with electricity at $0.13/kWh. Calculate panels needed, cost after 30% ITC, and payback period.
Sun Hours
3.5/day
Rate
$0.13/kWh
Cost/Watt
$2.9
Net Metering
Yes
☀️ Portland Solar Calculator
7,308 kWh
Panels
218
System Size
87.2 kW
Annual kWh
89,118
Net Cost
$177,016
Savings/yr
$11,585
Payback
15.3 yrs
25-Yr Savings
$112,609
System Sizes in Portland
| Monthly kWh | Panels | kW | Net Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 | 15 | 6.0 | $12,180 | $797 | 15.3 yrs |
| 750 | 23 | 9.2 | $18,676 | $1,222 | 15.3 yrs |
| 1,000 | 30 | 12.0 | $24,360 | $1,594 | 15.3 yrs |
| 1,500 | 45 | 18.0 | $36,540 | $2,391 | 15.3 yrs |
| 2,000 | 60 | 24.0 | $48,720 | $3,189 | 15.3 yrs |
| 2,500 | 75 | 30.0 | $60,900 | $3,986 | 15.3 yrs |
Solar Guide for Portland (2026)
Portland at latitude 45.52°N receives 3.5 peak sun hours/day. At $0.13/kWh, solar offers solid long-term savings.
Incentives: Federal ITC + OR Solar+Storage rebate ($5,000).
NEC Solar Requirements
All installations must comply with NEC Article 690: rapid shutdown (690.12), conductor sizing at 125% (690.8), and proper grounding per NEC 250. Use our Solar Wire Size Calculator for conductor sizing.
Disclaimer: Estimates only. Consult a licensed solar installer. NEC Article 690 compliance required.
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3.6 hrs · $0.225/kWh
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See also: Solar in Oregon