Solar Panels in Portland, OR
Portland gets 3.5 peak sun hours/day with electricity at $0.13/kWh. Calculate panels needed, installed cost, and payback period (updated for 2026 — no federal credit).
☀️ Portland Solar Calculator
System Sizes in Portland
| Monthly kWh | Panels | kW | Installed Cost | Savings/yr | Payback |
|---|---|---|---|---|---|
| 500 | 15 | 6.0 | $17,400 | $797 | 21.8 yrs |
| 750 | 23 | 9.2 | $26,680 | $1,222 | 21.8 yrs |
| 1,000 | 30 | 12.0 | $34,800 | $1,594 | 21.8 yrs |
| 1,500 | 45 | 18.0 | $52,200 | $2,391 | 21.8 yrs |
| 2,000 | 60 | 24.0 | $69,600 | $3,189 | 21.8 yrs |
| 2,500 | 75 | 30.0 | $87,000 | $3,986 | 21.8 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.
Frequently Asked Questions
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See also: Solar in Oregon