Solar Panel Payback Calculator


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Solar Panel Economics

FactorTypical Range
System Cost$15,000-$35,000
Federal Tax Credit30% (through 2032)
Payback Period6-12 years
System Lifespan25-30 years
Annual Degradation0.5-0.8%

Federal Solar Tax Credit

  • 2022-2032: 30% of system cost
  • 2033: 26% of system cost
  • 2034: 22% of system cost
  • 2035+: 0% (unless extended)

Factors Affecting ROI

  • Local electricity rates (higher = faster payback)
  • Sunlight availability
  • Roof orientation and shading
  • Net metering policies
  • State and local incentives
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