Solar Panel Savings Calculator

Calculate your solar savings, payback period, and lifetime ROI.

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Avg ~$2,500–$3,500 per kW installed
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US avg: 4–6 hrs. SW US: 6–7 hrs
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Solar Facts (2024)

  • Avg US system: 8–10 kW / $25,000–$35,000
  • Federal ITC: 30% through 2032
  • Avg payback: 6–12 years
  • Panel lifespan: 25–30 years
  • Production degrades ~0.5% per year
Annual kWh = System kW × Sun Hours × 365

FAQs

Most residential solar systems pay back in 6–12 years. With the 30% federal tax credit and rising electricity prices, the payback has shortened significantly in recent years. After payback, the electricity is essentially free.

The Inflation Reduction Act extended the federal solar Investment Tax Credit (ITC) at 30% through 2032. This means you can deduct 30% of installation costs from your federal taxes. Many states offer additional rebates and credits.