The average home solar system in the US costs about $18,000 to $23,000 before incentives in 2026, or roughly $2.60 to $3.30 per watt installed. For a typical 7 kW system that covers most of an average household’s electricity use, that works out to about $20,000 in a mid-range market.
That number moves a lot depending on where you live, how much power you use, which equipment you pick and how you pay. It also changed in 2026 for a big reason: the federal residential solar tax credit is no longer available for systems you buy and install after December 31, 2025 (more on that below). This guide breaks down what solar really costs today, what drives the price, and how to avoid overpaying.
Key takeaways
- Typical installed price: $2.60–$3.30 per watt before incentives.
- A 7 kW system usually costs $18,000–$23,000; a 10 kW system, $26,000–$33,000.
- Adding a home battery typically adds $10,000–$18,000.
- Prices are lowest in the Southwest and Southeast and highest in the Northeast, California and Hawaii.
- Without the federal credit, state incentives, net metering rules and your electricity rate matter more than ever.
- Get at least three quotes: price gaps of 15–30 % for the same system are common.
Average solar panel cost in 2026
Solar is priced by the watt. You multiply the system size (in watts) by the price per watt to estimate the total. In 2026, most residential quotes land between $2.60 and $3.30 per watt before any incentives.
Here is what that looks like by system size:
| System size | Typical home | Estimated cost before incentives |
|---|---|---|
| 4 kW | Small home, low usage | $10,400–$13,200 |
| 6 kW | Average home in a mild climate | $15,600–$19,800 |
| 8 kW | Larger home or moderate A/C use | $20,800–$26,400 |
| 10 kW | Large home, heavy A/C or an EV | $26,000–$33,000 |
| 12 kW | Very large home, EV and electric heating | $31,200–$39,600 |
These are ranges for installed systems, including panels, inverter, racking, wiring, permits and labor. They don’t include batteries, roof repairs or electrical panel upgrades.
The price per watt usually falls as the system gets bigger, because fixed costs such as permitting, design and travel are spread across more panels. A 4 kW system can cost more per watt than a 10 kW one.
Solar cost per watt by region
Where you live affects installation labor, permitting, competition among installers and available incentives. These are approximate 2026 ranges before incentives:
| Region | Typical price per watt |
|---|---|
| Texas, Arizona, Nevada | $2.30–$3.00 |
| Florida, Georgia, the Carolinas | $2.40–$3.10 |
| Midwest | $2.60–$3.30 |
| California | $2.80–$3.50 |
| Northeast (NY, MA, NJ, CT) | $3.00–$3.80 |
| Hawaii | $3.20–$4.00 |
A higher price per watt does not always mean a worse deal. Northeastern and California homeowners often pay more upfront but also pay higher electricity rates, so each kilowatt-hour they generate is worth more.
What drives the cost of a solar system
Solar quotes can look confusing, but the price breaks into a few main parts.
1. System size
The bigger the system, the higher the total price. Size depends on your annual electricity use, your roof space and whether you plan to add an EV, heat pump or electric appliances. Review your last 12 months of bills before you ask for quotes.
2. Equipment quality
Panels vary in efficiency, warranty and price. Premium panels (for example, high-efficiency monocrystalline models from major brands) can add 10–25 % to the cost compared with standard panels. They make the most sense when roof space is limited. Inverter choice matters too: microinverters and power optimizers cost more than a single string inverter but perform better with shade or complex roofs.
3. Installation and labor
Labor, permitting, design, inspections and the installer’s overhead and profit (often called soft costs) make up a large share of the final price, commonly 40 % or more. This is why quotes for the same equipment can differ so much between companies.
4. Roof type and condition
Tile, slate and steep or multi-plane roofs cost more to work on. If your roof needs repair or replacement within a few years, it is usually cheaper to do it before installing panels.
5. Electrical upgrades
Older homes may need a main panel upgrade, which can add $1,500–$4,000 or more to the project.
6. Local permits and utility rules
Permit fees, inspection requirements and interconnection charges vary by city and utility. In some areas they add a few hundred dollars; in others, a couple of thousand.
How much does solar plus a battery cost?
A battery doesn’t produce electricity; it stores it for use at night or during an outage. Installed prices for popular home batteries typically run $10,000 to $18,000 for a system around 10–13.5 kWh, depending on the brand, the number of units and the complexity of the backup setup.
A complete solar-plus-battery system often costs:
| Setup | Typical cost before incentives |
|---|---|
| 6 kW solar + 10 kWh battery | $26,000–$36,000 |
| 8 kW solar + 13 kWh battery | $33,000–$43,000 |
| 10 kW solar + two batteries | $42,000–$58,000 |
For many homeowners the battery doesn’t pay for itself through bill savings alone. It makes the most financial sense where utilities pay little for exported solar power (such as California under NEM 3.0), where time-of-use rates are steep, or where frequent outages make backup power valuable.
Is there still a federal tax credit for solar?
This is the biggest change for 2026. The 30 % Residential Clean Energy Credit (often called the 25D credit) that homeowners used to claim for solar panels and batteries ended for expenditures made after December 31, 2025, under federal tax legislation passed in 2025.
What that means in practice:
- If you buy and install a system in 2026, you can no longer claim the 30 % credit as an individual homeowner. The full cost lands on you, minus any state or local incentives.
- Systems that were completed and paid for in 2025 or earlier still qualify.
- Solar leases and power purchase agreements (PPAs) work differently. The company that owns the system may still be able to claim a business tax credit under certain conditions and rules that are changing, which can lower your monthly payment. Ask each provider how its pricing is affected.
Tax law is complex and can change. Check the current rules on IRS.gov or with a tax professional before you sign a contract.
Other incentives that can still lower your cost
Even without the federal credit, several incentives can reduce the net price:
- State tax credits and rebates. Some states offer income tax credits or direct rebates. Examples include programs in New York, Massachusetts and a number of other states.
- Property tax exemptions. Many states exempt the added home value from solar from property taxes.
- Sales tax exemptions. Several states don’t charge sales tax on solar equipment.
- Utility rebates and programs. Some utilities pay rebates or offer special rates for solar and storage customers.
- Solar renewable energy certificates (SRECs). In certain states, you can earn income for the power you generate.
- Net metering or export credits. These don’t reduce the purchase price, but they determine how much your excess power is worth, which strongly affects your payback.
The DSIRE database (dsireusa.org) is a good place to look up incentives for your state and utility.
How financing changes the cost
How you pay changes the total you spend over time.
| Option | Upfront cost | Total cost over time | Who benefits from incentives |
|---|---|---|---|
| Cash | Full price | Lowest | You |
| Solar loan | $0 to low | Higher (interest and dealer fees) | You |
| Lease | $0 | Payments for 20+ years, no ownership | Company |
| PPA | $0 | You pay per kWh generated | Company |
Watch out for dealer fees on some solar loans. A loan advertised at a low interest rate can carry a fee of 10–30 % of the loan amount built into the price. Always ask for the cash price and compare it with the financed price.
How long does it take for solar to pay for itself?
Payback depends on your system cost, your electricity rate, how much of your power the system offsets and how much your utility pays for exported power.
Without the federal credit, typical payback periods in 2026 run roughly:
- 7–10 years in states with high electricity rates and good sun (parts of California, Arizona, Massachusetts and New Jersey with incentives).
- 10–14 years in average markets.
- 14+ years where electricity is cheap and net metering is weak.
Solar panels usually carry 25-year warranties and often keep producing for 30 years or more, so even a 10-to-12-year payback can leave you with more than a decade of savings. Run your own numbers with a calculator that uses your real utility rate and roof data.
Hidden costs to ask about
A low headline price can leave out expenses. Before you sign, ask whether the quote includes:
- Main electrical panel upgrade
- Roof repairs or reinforcement
- Tree removal or shade mitigation
- Permit, inspection and interconnection fees
- Monitoring equipment
- Critter guards and wiring upgrades
- Removing and reinstalling panels if you need a new roof later
- Annual maintenance or cleaning
- Battery backup panel («critical loads» subpanel), if you want a battery
How to pay less for solar
- Get at least three quotes. Compare the price per watt, equipment brands and warranties, not just the total. Quotes from established local installers and marketplace platforms often differ by thousands of dollars.
- Right-size the system. Base it on your actual annual usage and plan for future electric loads, but don’t pay for more than your utility will credit.
- Use state and utility incentives. Check them before you sign, and ask the installer to confirm they will handle the paperwork.
- Pay cash or use a low-fee loan. A home equity line of credit or a loan without dealer fees can cut the total cost.
- Pick the right equipment, not the most expensive. Mid-range panels with strong warranties usually offer the best value.
- Time your project. Installers often discount in slower seasons and when competition is high.
- Avoid high-pressure sales. If an offer is «only good today,» walk away.
Frequently asked questions
How much does a 10 kW solar system cost?
A 10 kW system typically costs $26,000 to $33,000 before incentives in 2026, or $2.60–$3.30 per watt. Without a battery, it is large enough for a big home with an electric vehicle or heavy air conditioning use.
How much does it cost to power a house with solar?
Most homes need a system between 6 and 10 kW, which costs roughly $15,600 to $33,000 before incentives. Your electricity bills tell you exactly how big your system must be.
Are solar panels worth it without the tax credit?
Often yes, but not everywhere. Solar remains attractive in states with high electricity rates, strong net metering and good sunshine. In low-rate states with poor export compensation, payback can stretch beyond 14 years, so run the numbers before you commit.
Is it cheaper to buy or lease solar panels?
Buying is almost always cheaper over time because you keep the savings and own the asset. Leases and PPAs reduce the upfront cost, but you pay for 20 years or more and may face complications when you sell your home.
Will solar panels increase my home value?
Owned systems generally add value to a home. Studies have found price premiums, though the amount varies by market. Leased systems usually don’t add the same value and can complicate a sale.
How much does a solar panel cost on its own?
A single residential solar panel costs about $200–$450 for the module alone, but panels are sold as part of a complete installed system. The installed cost per panel is closer to $1,000–$1,300 once you include the inverter, racking, labor and permits.
Bottom line
In 2026 a typical home solar system costs about $18,000–$23,000 before incentives, with batteries adding $10,000–$18,000 more. With the federal homeowner tax credit gone, the right choice depends more than ever on your state’s incentives, your electricity rate and how your utility compensates solar exports.
The best next steps are to gather your last 12 months of electric bills, compare at least three quotes and check your state’s incentives before you decide.