Skip to content
Solar Background
Live Data Analysis

Solar analysis: Islip, NY

With 4.65 peak sun hours, Islip offers solid solar potential. Combined with current incentives, the ROI case is compelling. Your area receives an average of 4.65 peak sun hours per day.

Solar Authority Score™
65 Moderate
📍

Solar Coverage Map: Islip, NY

6 nearby locations
Loading map...

Projected Yearly Savings

$993 /yr
High ROI Expected
Investment Grade: A+

Verified Solar Potential

Production
6,707 kWh per year (Est.)

Payback Period

9.5 Years

Time until system pays for itself

25-Year Lifetime Savings

$15,426

Estimated net profit after system costs

Fed. Tax Credit (30%)

$4,024
Money back in pocket

Available Incentives & Rebates

Residents of Islip 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.

NY State Incentives

VDER Stack
Net Metering / VDER

Value of Distributed Energy Resources (VDER) stack value credits.

Upfront Rebate
NY-Sun (Megawatt Block)

Upfront rebate based on system size ($/Watt). Varies by region.

$5,000 Credit
Solar Energy System Equipment Credit

25% state tax credit, capped at $5,000.

Efficiency

Code: 11751
EXCELLENT Score

4.65 Peak Sun Hours / day

Live Solar Forecast

Loading...
Production Efficiency --%

Fetching satellite data for Islip...

Peak Sun Hours Comparison

Above Avg
Bar chart comparing Islip's 4.65 peak sun hours to the national average of 4.5 hours Islip National Avg State Avg 4.65 hrs 4.50 hrs 4.45 hrs 0h 2h 4h 6h

Islip receives 3% more peak sunlight than the U.S. average, indicating excellent solar production potential.

Solar Physics Simulator

Sun path trajectory for Islip

27.0° Max Elevation
Sun path diagram showing summer vs winter trajectory in Islip East South West Summer (June) 27.0° Altitude Winter (Dec) -3.1° Altitude

In Islip, the sun is 30.1° lower in the sky during winter.
💡 Tip: Panels positioned at a 36.7° tilt will capture maximum energy year-round.

Why Solar in Islip?

With 4.65 average peak sun hours and potential savings of $993 annually, Islip residents have a clear path to energy independence. Local focus: Aggressive state incentives and high electricity costs. State incentives are tapering. Lock in maximum savings now.

True Cost Calculator

Average System Cost $13,414
🇺🇸 Federal Tax Credit (30%)
- $4,024
🏛️ NY Rebate
- $1,000
Your Net Cost
$8,390
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 Islip.

S&P 500 (Historical 7%) $60,981 Net Profit
Taxable
Solar Energy System $25,172 Tax-Free Gain
Winner 👑
Savings: $26,672 + Property Value: $16,000

Solar Outperforms by -59%

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 Islip solar market has 6 primary installers. Quality and warranty terms matter more than price in smaller markets.