Solar Savings Calculator

Solar Savings Calculator: How Much Can Solar Save You?

Our solar savings calculator uses your ZIP code and monthly electricity bill to provide accurate estimates for solar panel installations in your area. We analyze local sun exposure, electricity rates, and current system costs to give you personalized results in under 30 seconds — no email required, no sales calls.

The average American homeowner with a $150–$200 monthly electricity bill can save $1,200–$1,800 per year by going solar. Over 25 years, that adds up to $30,000–$45,000 in total savings — even after accounting for the system cost. And with the 30% federal tax credit, the net investment is lower than ever.

What to Enter in the Solar Savings Calculator

ZIP Code: Your location determines your local electricity rate and peak sun hours — the two biggest factors in your solar savings. California, Arizona, Texas, and Florida homeowners typically see the highest savings due to high sun exposure and above-average electricity rates.

Monthly Electricity Bill: Enter your average monthly bill. This tells the calculator how much electricity you use and how large a system you need. A higher bill means a larger system — and larger annual savings. The calculator uses your bill and local electricity rate to estimate your actual kWh consumption.

Roof Orientation: South-facing roofs are optimal for solar production in the US, generating around 100% of maximum output. East or west-facing roofs produce about 85–90%. North-facing roofs produce around 70–75% but can still make financial sense depending on your electricity rate.

What You'll Learn From This Solar Savings Calculator

This free solar savings calculator gives you a complete financial picture in under 30 seconds. Here's exactly what the results include:

• Annual and 25-year savings — See exactly how much money solar will save you, year by year
• Recommended system size — Find out how many kW and how many panels you need
• Installation costs and incentives — Total cost and net cost after the 30% federal tax credit
• Payback period and ROI — Know exactly when your system pays for itself and your total return
• Environmental impact — CO2 offset, tree-planting equivalent, and home value increase

Solar Panel Costs in 2026

The average solar installation in the US costs $2.50–$3.50 per watt, or $15,000–$25,000 for a typical 6–8 kW system before incentives. After the 30% federal Investment Tax Credit (ITC), the net cost drops to $10,500–$17,500. Many states offer additional rebates that reduce the cost further. Our calculator uses $3.00/watt as a conservative baseline.

Solar panel prices have dropped over 90% in the last 15 years and continue to fall. The combination of lower equipment costs, higher electricity rates, and a generous federal tax credit has made solar the best financial investment many homeowners will ever make. Learn about all available incentives in our Solar Incentives Guide.

How Solar Panels Work on Your Home

Solar panels convert sunlight into DC electricity, which an inverter converts to AC power for your home. During the day, you use solar electricity directly. Any excess goes back to the grid for a credit (net metering) or charges a battery for nighttime use. At night or on cloudy days, you draw from the grid normally. Most solar homes reduce their grid consumption by 70–90%.

Understanding the basics before getting installer quotes puts you in a much stronger negotiating position. Read our complete Solar Basics guide to learn everything you need to know before signing anything.

Why Go Solar in 2026?

Solar panels can reduce your electricity costs by 60–85% while increasing your home value by an average of $15,000–$25,000. With the federal tax credit covering 30% of costs through 2032, electricity rates rising 3–5% annually, and solar panel prices at all-time lows, 2026 is one of the best years in history to go solar. Run the numbers with our solar savings calculator before getting installer quotes. For additional resources, visit the Energy.gov Solar Guide or the DSIRE Incentive Database.