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Balcony Solar ROI in Montgomery, AL (South)

Free 800W payback calculator with PVGIS solar data for Montgomery

Published January 1, 2025 · Last updated: July 3, 2026

Calculate your 800W balcony solar payback in Montgomery with south-facing panels. Our calculator uses official PVGIS irradiance data for Montgomery, Alabama 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 Montgomery, Alabama, latitude 32.4°N yields roughly 1450 kWh/kWp/year from PVGIS data. With south-facing panels, a realistic 800W balcony system produces about 998 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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Current: Montgomery (30 cities available)
Balcony: 0-30°, Roof: 30-40°
W
Typical: 600-800W for balcony systems
$/kWh
$
Typical: $1,000-$2,000 for 800W
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Data from PVGIS API (EU)
The calculator uses official EU data (PVGIS) for precise calculations. An internet connection is required.

FAQ – Montgomery Balcony Solar

How much can an 800W balcony solar system produce in Montgomery?

An 800W south-facing system in Montgomery, Alabama typically generates 898–1098 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 Alabama?

Rules vary by utility in Alabama. Many areas allow UL 1741-listed plug-in systems with utility registration. See our plug-in solar legal by state guide and Alabama incentives page.

What is the payback period for balcony solar in Montgomery?

At typical Alabama electricity rates (~$0.13/kWh), an 800W system in Montgomery often pays back in 15–20 years before the 30% federal tax credit.

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