Balcony Solar ROI in Portland, OR (South)
Free 800W payback calculator with PVGIS solar data for Portland
Published January 1, 2025 · Last updated: July 3, 2026
Calculate your 800W balcony solar payback in Portland with south-facing panels. Our calculator uses official PVGIS irradiance data for Portland, Oregon to estimate annual production, electricity savings, and return on investment based on your local sun exposure and utility rates.
Assumptions: 70% self-consumption, $0.13/kWh average rate, ~$1,500 system cost (before 30% federal ITC), 14% system losses. Click Calculate below for your personalized results.
In Portland, Oregon, latitude 45.5°N yields roughly 1000 kWh/kWp/year from PVGIS data. With south-facing panels, a realistic 800W balcony system produces about 688 kWh/year before the 30% federal tax credit.
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West and east facing output is available in the main calculator — no separate SEO pages.
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FAQ – Portland Balcony Solar
How much can an 800W balcony solar system produce in Portland?
An 800W south-facing system in Portland, Oregon typically generates 619–757 kWh per year depending on shading and tilt. Use the calculator below for a precise PVGIS-based estimate.
Is plug-in balcony solar legal in Oregon?
Rules vary by utility in Oregon. Many areas allow UL 1741-listed plug-in systems with utility registration. See our plug-in solar legal by state guide and Oregon incentives page.
What is the payback period for balcony solar in Portland?
At typical Oregon electricity rates (~$0.13/kWh), an 800W system in Portland often pays back in 21–29 years before the 30% federal tax credit.
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