How Much Do Solar Panels Cost in 2026? Real Prices by Size
As of October 2026, a home solar system typically costs about $2.60 to $3.00 per watt before incentives if you pay cash, which works out to roughly $21,000 to $24,000 for an 8 kW system. Systems sold with “low APR” solar loans cost much more, around $4.50 per watt in 2025, because the lender’s fee is built into the price. There is no federal tax credit for an owned system installed in 2026, so the sticker price is close to what you will actually pay. Below are the benchmarks, why they differ, what moves the price and how to judge a quote.
2026 price benchmarks, and why they disagree
You will see different “average cost” numbers depending on who is counting. They are measuring different things.
| Source | Price per watt | What it measures |
|---|---|---|
| EnergySage marketplace, H1 2026 | $2.57 median ($2.62 solar-only) | Competitive quotes on a comparison marketplace, before incentives |
| LBNL, cash purchases, 2025 | $3.00 median | Prices cash buyers actually paid, in 2025 dollars |
| LBNL, all owned systems, 2025 | $3.60 median | All host-owned systems, cash and loans together |
| LBNL, loan-financed, 2025 | $4.50 median | Systems bought with loans, including dealer fees |
Sources: EnergySage H1 2026 and the LBNL 2026 Data Update (Tracking the Sun).
Why the gap:
- Marketplace quotes skew low. Installers bidding against each other on a comparison site tend to sharpen their pencils. Those quotes also lean toward cash buyers.
- LBNL counts what people actually paid, across about 450,000 systems installed in 2025. That includes door-to-door sales with high overhead.
- Loans inflate the price. Many solar loans advertise 1% to 7% APRs by charging the installer a “dealer fee” that gets passed into your price. The CFPB found these fees typically run 10% to 30% of the cash price and can exceed 50%. LBNL’s $4.50 loan median is about 50% above the $3.00 cash median.
For planning, we use $3.00 per watt as a realistic cash price, with a fair range of about $2.50 to $4.00. If you get a cash quote near $2.60, that is competitive. If your financed quote works out to $4.50, you are probably paying a large dealer fee. See what is a good price per watt.
System cost by size
Prices before any incentives, as of October 2026. The median U.S. residential system in 2025 was 7.7 kW, and most fall between 5 and 12 kW.
| System size | About $2.60/W (competitive quote) | About $3.00/W (cash median) | About $3.60/W (all owned) | About $4.50/W (dealer-fee loan) |
|---|---|---|---|---|
| 4 kW | $10,400 | $12,000 | $14,400 | $18,000 |
| 6 kW | $15,600 | $18,000 | $21,600 | $27,000 |
| 8 kW | $20,800 | $24,000 | $28,800 | $36,000 |
| 10 kW | $26,000 | $30,000 | $36,000 | $45,000 |
| 12 kW | $31,200 | $36,000 | $43,200 | $54,000 |
Small systems usually cost more per watt than this table suggests. Permits, design, sales, the inverter, and the crew’s trip cost about the same whether you install 10 panels or 25, so those fixed costs weigh more on a small system.
How many kW you need depends on your usage and your export rules. See how many solar panels do I need.
What you are paying for
LBNL estimates that soft costs plus balance-of-system make up about 80% of the installed price. The panels themselves are a minority of the bill. Soft costs include:
- Sales and marketing, including commissions for door-to-door and call-center sales.
- Design, engineering and permitting.
- Labor for installation and electrical work.
- Overhead, profit and financing costs.
That is why two installers using the same panels can quote very different prices. LBNL found median prices across the top 100 installers ranging from $2.40 to $6.30 per watt in 2025. About a quarter were under $3.00, and about one in ten were over $5.00.
What drives your price up or down
Things that legitimately raise the price:
- Main electrical panel upgrade. Older or full panels may need replacing to add solar. This can add a few thousand dollars.
- Roof complexity. Steep pitches, multiple roof faces, tile or metal roofs, and two-story homes take more labor and special mounting.
- Premium equipment. Microinverters or optimizers, high-efficiency panels, and critter guards cost more. They can be worth it on shaded or small roofs. See microinverters vs string inverters.
- Ground mounts and trenching to reach the house.
- Local labor and permitting costs. 74% of EnergySage contractors reported higher labor rates in H1 2026.
Things that raise the price without adding value:
- Dealer fees hidden in “low rate” loans. Use our dealer fee calculator.
- High-pressure sales overhead. Door-to-door and “free solar” pitches carry big commissions.
- Oversizing. More panels than your usage and export rules justify. See oversized system.
Batteries: what they add
Batteries are expensive and, when you own them, get no federal credit after 2025.
- EnergySage H1 2026: about $1,130 per kWh of storage installed.
- Typical 13.5 kWh battery: roughly $12,000 to $16,500 installed.
- LBNL 2025: cash solar-plus-storage systems ran a median $5.10 per watt of solar, about $2.10 per watt more than solar alone. On an 8 kW system that is roughly $16,800 extra.
About 31% of EnergySage marketplace quotes and 37% of systems in LBNL’s 2025 data included a battery. A battery can make sense for backup power, for time-of-use rates under net billing, or where a utility pays for battery capacity. On bill savings alone, many do not pay back. See do solar batteries pay off and the battery calculator.
How prices vary by state
Prices vary meaningfully by state. EnergySage’s state averages, as of mid-October 2026, ranged from about $2.12 per watt in Florida and $2.25 in Texas to $3.46 in Hawaii, with most states between $2.40 and $3.00. LBNL’s 2025 state medians, which include loan pricing, ranged from $3.00 in Washington to $4.10 in North Carolina and New Mexico.
The two sources can disagree by a lot for the same state. Texas was $2.25 at EnergySage but $4.00 in LBNL’s data, which suggests heavy use of dealer-fee loans there. Treat any state average as a rough guide, not a target.
See our solar panel cost by state table for every state, and your state page for local incentives.
The tax credit is gone, so is the “net price”
In 2025 and earlier, quotes often showed a “net cost” after the 30% federal credit. For a system you own that is installed in 2026, that credit does not exist. The price you pay is the price you see, minus any state or utility incentive you actually qualify for. See what happened to the federal solar tax credit.
Lease and PPA companies can still claim a credit, which is why they can sometimes undercut purchase prices. Compare total cost, not monthly payment, in the lease vs buy tool.
Other costs to budget for
- Inverter replacement. String inverters typically last 10 to 15 years and cost about $1,500 to $3,000 to replace. Microinverters usually carry 25-year warranties.
- Roof work. If your roof needs replacing during the system’s life, removing and reinstalling panels can cost a few thousand dollars. See replace roof before solar.
- Insurance and property tax. Many states exempt solar from property tax. Your homeowners premium may rise slightly. See solar property taxes and insurance.
- Monitoring and service if your installer goes out of business. See solar company out of business.
How to judge a quote
- Get the total price before incentives, the system size in kW (DC), and the cash price if you are financing.
- Divide price by watts. $25,500 for 8.6 kW is $25,500 ÷ 8,600 = $2.97 per watt.
- Compare to the benchmarks. Under about $3.00 for cash is good in most states. Over $4.00 needs a clear reason, such as a main panel upgrade or a complex roof.
- Check the equipment model numbers for panels, inverters and any battery. “Tier 1 panels” is not a model number.
- Check the production estimate against PVWatts with our production checker.
- Look for removed incentives. A 2026 quote for an owned system should not subtract a 30% federal credit.
- Compare quotes side by side in compare quotes. For a full checklist, see how to compare solar quotes.
Bottom line: In 2026, a fair cash price for most homes is about $2.60 to $3.00 per watt. If a quote is much higher, find out why before you sign, and always ask for the cash price.
Once you have a real price, plug it into the calculator to see your payback, or read our solar payback period guide.
Common questions
How much does a 10 kW solar system cost in 2026?
At typical 2026 prices, about $26,000 to $30,000 before incentives if you pay cash or use outside financing. Through a dealer-fee solar loan, the same system often costs $36,000 to $45,000 or more.
Why are solar quotes so different from each other?
Installers have very different overhead, sales costs and markups. LBNL found median prices across the top 100 installers ranging from $2.40 to $6.30 per watt. Financing method, equipment, roof complexity and electrical upgrades also move the price.
Do solar panels cost less now that the tax credit ended?
No. EnergySage's marketplace median was $2.57 per watt in the first half of 2026, about 3% higher than late 2025. Installers did not cut prices by 30% to replace the lost credit.
Is a cheaper solar quote always better?
Not always. A low price from an installer with weak warranties, unnamed equipment or shaky finances can cost more later. But a high price is not proof of quality either. Compare price per watt alongside equipment, warranties and the installer's track record.
Spotted an error or outdated number? Email hello@unbiasedsolar.com and we'll fix it. No installer or lender paid for or reviewed this guide.