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Best States for Solar 2025: Complete Rankings Guide

Compare solar incentives and ROI in all 42 states. CA, AZ, FL top rankings. Data from 24K+ installations. Free state-specific analysis.

Best States for Solar 2025: Complete Rankings Guide
P

Policy Research Team

Prosper Shield Regulatory Affairs

December 20, 202315 min read

Best States for Solar 2025: Complete Rankings Guide

Prosper Shield has installed solar systems in 42 states and analyzed ROI, incentives, and policies in each. Here's our definitive 2025 ranking based on state incentives, sun exposure, and electricity rates. Schedule your free assessment to learn about your state's programs.

Note: The federal 30% solar tax credit is no longer available. The rankings below focus on state-level incentives and solar conditions. Check current federal incentives at energy.gov.

Top 10 States for Solar (2024 Rankings)

1. California 🥇

Overall Score: 98/100

Why it's #1:

  • Net metering 3.0 still excellent value
  • Perfect weather (high sun exposure)
  • Additional state rebates up to $3,000
  • Property tax exemption
  • Highest electricity rates ($0.30-$0.40/kWh)

Average payback: 5-6 years ROI: 280-350% over 25 years

2. Arizona 🥈

Overall Score: 95/100

Why it excels:

  • 300+ days of sunshine annually
  • Strong net metering policies
  • Equipment sales tax exemption (9.5%)
  • SRP/APS utility rebates
  • Moderate electricity rates

Average payback: 6-7 years ROI: 250-300% over 25 years

3. Florida 🥉

Overall Score: 93/100

Why it's top-tier:

  • Property tax exemption (saves $8,000-$15,000)
  • Sales tax exemption on equipment
  • 237 sunny days per year
  • High electricity rates in summer
  • No state income tax

Average payback: 6.5-7.5 years ROI: 240-290% over 25 years

4. Texas

Overall Score: 91/100

Strengths:

  • Property tax exemption
  • High electricity consumption (AC usage)
  • Multiple utility buyback programs
  • Deregulated market = higher rates
  • Excellent sun exposure

Average payback: 7-8 years ROI: 220-270% over 25 years

5. North Carolina

Overall Score: 90/100

Highlights:

  • 30-year net metering guarantee
  • Property tax exemption (80% system value)
  • Solar friendly building codes
  • Duke Energy incentives
  • Moderate-high electricity rates

Average payback: 7-8 years ROI: 210-260% over 25 years

6. New York

Overall Score: 89/100

Benefits:

  • NY-Sun incentive ($1,000-$5,000)
  • 25-year net metering lock-in
  • Property tax exemption
  • SRECs worth $10-$20 per certificate
  • Sales tax exemption

Average payback: 7-9 years ROI: 200-250% over 25 years

7. Nevada

Overall Score: 88/100

Advantages:

  • 310+ days of sunshine
  • Net metering with 20-year grandfathering
  • Property tax abatement
  • No state equipment tax
  • High summer electricity rates

Average payback: 7-9 years ROI: 195-245% over 25 years

8. Massachusetts

Overall Score: 87/100

Incentives:

  • SMART program ($0.27-$0.36/kWh for 10 years)
  • SREC-II program
  • Property tax exemption
  • Sales tax exemption
  • High electricity rates

Average payback: 6-8 years ROI: 210-270% over 25 years

9. New Jersey

Overall Score: 86/100

Why it ranks high:

  • Strong SREC program
  • Net metering mandated by law
  • Sales tax exemption
  • High electricity costs
  • Successor Solar Incentive Program

Average payback: 7-9 years ROI: 200-250% over 25 years

10. Colorado

Overall Score: 85/100

Advantages:

  • 300 days of sunshine
  • Xcel Energy Solar Rewards
  • Net metering statewide
  • Property tax exemption
  • Clean energy sales tax refund

Average payback: 8-10 years ROI: 180-230% over 25 years

Ranking Methodology

We evaluated states on five criteria:

1. Incentives (30% weight)

  • State tax credits and rebates
  • Property tax exemptions
  • Sales tax exemptions
  • SREC programs

2. Net Metering (25% weight)

  • Policies and rates
  • Duration of agreements
  • Credit rollover rules

3. Electricity Rates (20% weight)

  • Current $/kWh rates
  • Historical increase trends
  • Time-of-use programs

4. Sun Exposure (15% weight)

  • Annual sunny days
  • Solar radiation levels
  • Seasonal variation

5. Regulatory Environment (10% weight)

  • Permitting ease
  • Interconnection speed
  • Pro-solar policies

Regional Analysis

Southwest (Excellent)

States: AZ, NV, NM, UT

  • ✅ Maximum sun exposure
  • ✅ Low installation complexity
  • ⚠️ Lower electricity rates in some areas

Best for: Fastest energy production, highest long-term output

Southeast (Very Good)

States: FL, NC, SC, GA, TX

  • ✅ High electricity usage (AC)
  • ✅ Property tax exemptions
  • ⚠️ Hurricane considerations

Best for: High consumption households, AC-heavy usage

Northeast (Good - Excellent)

States: NY, NJ, MA, CT, PA

  • ✅ SREC programs boost ROI
  • ✅ High electricity rates
  • ⚠️ More seasonal variation

Best for: Homeowners with state SREC programs, high electric rates

Midwest (Good)

States: IL, IN, OH, MI, MO

  • ✅ Competitive electricity rates
  • ✅ Underrated sun exposure
  • ⚠️ Fewer state incentives

Best for: Federal tax credit maximizers, long-term investors

West Coast (Excellent)

States: CA, OR, WA

  • ✅ Strong policy support
  • ✅ High electricity costs (CA)
  • ⚠️ Changing net metering (CA)

Best for: Environmental focus, premium system features

Is Your State Good for Solar?

Every state we operate in offers positive ROI. Here's the minimum you should expect:

Tier 1 States (Top 15):

  • Payback: 5-8 years
  • 25-year ROI: 200-350%
  • Incentive value: $5,000-$15,000+

Tier 2 States (Remaining 27):

  • Payback: 8-12 years
  • 25-year ROI: 150-220%
  • Incentive value: $2,000-$8,000

Bottom line: If we install in your state, solar makes financial sense.

State-Specific Considerations

Before choosing solar, evaluate:

  1. Your electricity rate

    • Break-even point: $0.11/kWh
    • Excellent for solar: $0.15+/kWh
  2. Your roof

    • South-facing is ideal (but not required)
    • Minimal shade from trees/buildings
    • 15+ years of remaining lifespan
  3. Your incentives

    • Federal: The 30% credit is no longer available. Check energy.gov for current programs.
    • State: Varies widely
    • Utility: Check your specific provider
    • SREC: Available in 8 states

Frequently Asked Questions

Which state is absolutely best for solar in 2025?

California ranks #1 due to high electricity rates ($0.30-$0.40/kWh), excellent sun exposure, and strong net metering. State-level incentives and high electricity rates make California an excellent solar market. Check your state's specifics.

Can I still go solar if my state isn't in the top 10?

Absolutely. Every state Prosper Shield operates in offers positive ROI - even Tier 2 states provide 150-220% ROI over 25 years. With solar prices at historic lows, every state offers strong value. Calculate your exact savings.

How much does my state's ranking matter?

State incentives, electricity rates, and sun exposure are now the primary factors in solar ROI since the federal credit is no longer available. Higher-ranked states offer better incentives and conditions, but solar delivers positive ROI in all 42 states Prosper Shield serves.

Do cloudy states like Washington really make financial sense for solar?

Yes. Germany (cloudier than Seattle) leads the world in solar. Annual sunlight matters more than daily sunshine. Cool temperatures actually increase panel efficiency. Prosper Shield installations in Washington achieve 85-90% of promised production. Explore cloudy climate data.

Are there any federal incentives still available?

The federal 30% residential solar tax credit has expired. Check energy.gov for any current federal programs. State incentives remain the primary source of solar savings beyond electricity bill reduction. Schedule consultation to learn about your state's programs.

How quickly do state solar incentives change?

State programs can change quarterly. California's NEM 3.0, Massachusetts' SMART program, and state rebate funds often have caps or deadlines. Get current state data from Prosper Shield.

Check Your Exact Incentives

Solar incentives change frequently. Prosper Shield's team tracks:

  • ✅ Current federal incentive programs
  • ✅ State rebate program status
  • ✅ Utility program updates
  • ✅ SREC market rates
  • ✅ Local incentive availability

Want to know your state's exact incentives and ROI?


Rankings based on 2025 data from Prosper Shield's 24,000+ installations across 42 states. The federal solar tax credit is no longer available. Check current federal incentives at energy.gov. State incentives and policies subject to change - contact us for latest information.

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State RankingsIncentivesROI AnalysisPolicies

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