Solar Calculator: Estimate Home Solar Costs & Savings
Find out if solar makes financial sense for your home—without talking to a salesperson first. This calculator shows realistic cost and savings estimates based on your location and energy use.
Built by solar industry veterans. No sales pitch. You decide if and when to connect with installers.
What This Calculator Shows
Enter your address and average electric bill. We’ll estimate:
- System size and upfront cost – How many panels you’d need and what it typically costs in your area
- Monthly and 25-year savings – How solar affects your electricity bills over time
- Potential home value impact – An estimate of how adding solar may increase your home’s resale value.
All values are estimates designed to help you understand whether solar could make sense for your home before talking to installers.
When Solar Typically Makes Sense
- You pay $75+ monthly for electricity
- Your roof gets 4+ hours of daily sun
- You plan to stay in your home 5+ years
- Your roof is in good condition (or due for replacement)
If you check most of these boxes, solar is worth a closer look.
Why Solar Calculator Results Can Vary
Roof orientation and shading
South-facing, shade-free roofs typically perform best, but many homes still work well with other layouts.
Local electricity rates and rate structures
Time-of-use pricing, tiered rates, and future utility increases can significantly affect savings.
Installation costs in your area
Battery storage
Financing vs cash purchase
Loans, leases, and PPAs all change how savings show up month-to-month.
How Accurate Is a Solar Calculator?
- It’s accurate enough to help you decide whether to explore solar further
- It’s not a substitute for a site visit or engineered design
- Final system size and pricing will always come from an installer
- Verify solar proposals from installers
- Understand what drives costs and savings
- Ask better questions when you talk to installers
Solar Calculator Vs Installer Quotes
- Understand potential costs and savings
- Learn how incentives apply to your situation
- Decide whether solar is worth pursuing
- Roof measurements and shading analysis
- Equipment selection and system design
- Final pricing and installation timelines
The most confident homeowners use both: a calculator first, then multiple installer quotes to compare.
Common Questions About Solar Calculators
Savings depend on your electricity usage, utility rates, system size, and incentives. This calculator shows a realistic range rather than a guaranteed number.
This calculator focuses on long-term energy savings and electricity bill stability rather than short-term incentive programs. Incentives can change over time and vary by location, but the underlying value of solar comes from generating your own power and reducing exposure to rising utility rates.
Each calculator uses different assumptions for electricity rates, system performance, and costs. Transparency matters more than optimism.
Yes – Battery storage can be added as an option. Batteries improve resilience during outages but affect total system cost and payback timing.
Solar can make sense in many regions, but not all. This calculator helps you evaluate your situation before committing time or money.
This calculator provides an estimate based on the information you enter and industry-standard assumptions. While it can’t replace a full on-site solar assessment, it gives a reliable starting point to understand potential savings, system size, and whether solar is worth exploring further.
Ready to Go Deeper?
Compare trusted solar installers near you and turn your estimate into a plan you can act on.