Solar Calculators
Going solar in 2026 is one of the smartest financial and environmental decisions homeowners can make. With the 30% federal Investment Tax Credit (ITC) available through 2032, dramatically lower panel costs, and electricity rates at all-time highs, the economics have never been more compelling. Our solar calculators cut through the sales hype to show you real numbers: your actual payback period, lifetime savings, and return on investment based on your specific situation—not industry averages.
3 Calculators Available
What's the return on investment for solar panels in 2026?
Calculate your solar panel investment return, payback period, and lifetime savings. See how the 30% federal tax credit (available through 2032) and local incentives improve your ROI.
How much will a new roof cost?
Estimate roof replacement costs based on size, material, and complexity. Essential for planning solar installation or home improvement projects.
Is solar cheaper than grid electricity over time?
Compare the 25-year cost of solar panels versus staying on grid electricity. See your break-even point and total savings with rising utility rates.
Why Solar Calculators Matter
Solar panel costs have plummeted over 70% in the past decade while electricity rates have surged. In 2024 alone, US electricity prices increased 4.2%—far above historical averages. This creates a widening gap that makes solar increasingly attractive. A $25,000 system that offsets a $200/month bill can save $50,000-$80,000 over 25 years when accounting for rate inflation. But the math varies dramatically by location, utility policies, and your specific roof. That's why running your own numbers is essential.
Key Topics to Understand
Federal Investment Tax Credit (ITC) 2026
The 30% federal ITC remains available for residential solar through 2032. This isn't a deduction—it's a dollar-for-dollar credit against your tax liability. A $25,000 system means $7,500 off your federal taxes. The credit steps down to 26% in 2033 and 22% in 2034, then expires for residential systems in 2035. If you can't use the full credit in one year, it carries forward.
Payback Period & ROI
Most solar systems pay for themselves in 6-10 years depending on electricity rates, incentives, and system cost. After payback, you're generating essentially free electricity for another 15-20 years. With typical 25-year lifetimes, homeowners see 200-400% total ROI. Higher electricity rates = faster payback.
Net Metering & Utility Policies
Net metering lets you sell excess solar power back to the grid. States with full retail net metering (you get paid the same rate you pay) offer the best economics. Some utilities now offer lower wholesale rates or time-of-use credits instead. Check your utility's specific policy—it dramatically impacts ROI.
Roof Age & Condition
If your roof is 15+ years old, replace it before installing solar. Removing panels for roof work later costs $1,500-$3,000 and risks warranty issues. Many roofers offer discounts when combining projects, and the new roof may qualify for improved insurance rates.
Battery Storage Considerations
Home batteries (Tesla Powerwall, Enphase, etc.) add $10,000-$15,000 but qualify for the same 30% ITC. They provide backup power during outages and can optimize time-of-use rate savings. Not essential for ROI but increasingly popular for energy independence.
Buying vs. Leasing Solar
Purchasing (cash or loan) provides the best ROI since you keep all incentives and savings. Leases/PPAs offer $0 down but you don't own the system, don't get tax credits, and may complicate home sales. Loans can provide the benefits of ownership with minimal upfront cost.