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Solar Background
Live Data Analysis

Solar potential in Port Isabel, TX

Exceptional solar conditions detected. Port Isabel receives 5.53 hours of peak sunlight—well above national average. One factor determines if you can capitalize. Your area receives an average of 5.53 peak sun hours per day.

Solar Authority Score™
70 Good

Nearby Areas

Brownsville 78521 Los Fresnos 78566 Brownsville 78526 Olmito 78575 South Padre Island 78597 Brownsville 78520
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Solar Coverage Map: Port Isabel, TX

6 nearby locations
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Annual Electricity Offset

$1,126 /yr
High ROI Expected
Investment Grade: A+

Verified Solar Potential

Production
7,606 kWh per year (Est.)

Payback Period

9.5 Years

Time until system pays for itself

25-Year Lifetime Savings

$17,493

Estimated net profit after system costs

Fed. Tax Credit (30%)

$4,564
Money back in pocket

Available Incentives & Rebates

Residents of Port Isabel may qualify for 5 active programs.

Federal Programs (Apply to Everyone)

Warning: 2026 Cliff
Inflation Reduction Act (Sec. 48E)
Benefit Value Pass-through Savings

If you lease your system (PPA), the solar company claims this credit and passes savings to you. Valid through 2032.

Warning: 2026 Cliff
Federal Residential Clean Energy Credit (ITC)
Benefit Value 30% (Expiring 2025)

30% Tax Credit for systems installed by Dec 31, 2025. CRITICAL: For 2026, this credit is set to expire for homeowner-owned systems unless extended. Leases (Third-Party) still qualify under Sec. 48E.

TX State Incentives

Check Utility
Utility Rebates (Oncor/AEP)

Local rebates available via specific utility providers.

Legal Right
Solar Rights Law

HOAs cannot prohibit solar installations.

100% Exemption
Property Tax Exemption

100% of value added by solar is exempt from property tax.

Efficiency

Code: 78578
EXCELLENT Score

5.53 Peak Sun Hours / day

Live Solar Forecast

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Production Efficiency --%

Fetching satellite data for Port Isabel...

Peak Sun Hours Comparison

Excellent
Bar chart comparing Port Isabel's 5.53 peak sun hours to the national average of 4.5 hours Port Isabel National Avg State Avg 5.53 hrs 4.50 hrs 5.58 hrs 0h 2h 4h 6h

Port Isabel receives 23% more peak sunlight than the U.S. average, indicating excellent solar production potential.

Solar Physics Simulator

Sun path trajectory for Port Isabel

3.6° Max Elevation
Sun path diagram showing summer vs winter trajectory in Port Isabel East South West Summer (June) 3.6° Altitude Winter (Dec) -15.9° Altitude

In Port Isabel, the sun is 19.5° lower in the sky during winter.
💡 Tip: Panels positioned at a 23.4° tilt will capture maximum energy year-round.

Why Solar in Port Isabel?

Our analysis of Port Isabel, TX reveals strong solar fundamentals: 5.53 peak sun hours daily and estimated savings of $1,126/year. Texas summers push AC costs to extreme levels The solution? Solar + battery provides true energy independence

True Cost Calculator

Average System Cost $15,212
🇺🇸 Federal Tax Credit (30%)
- $4,564
🏛️ TX Rebate
- $1,000
Your Net Cost
$9,648
Financial Showdown

If you had $25k... Stock Market vs. Solar

Comparing a 20-year investment in the S&P 500 versus purchasing a solar system in Port Isabel.

S&P 500 (Historical 7%) $60,981 Net Profit
Taxable
Solar Energy System $28,747 Tax-Free Gain
Winner 👑
Savings: $30,247 + Property Value: $16,000

Solar Outperforms by -53%

Unlike stock market gains which are taxed at ~15-20%, the money you save on electricity is 100% tax-free. Plus, solar increases your home's resale value immediately.

The Port Isabel solar market has 7 primary installers. Quality and warranty terms matter more than price in smaller markets.