Solar Panel Cost Per Watt in 2026: US Pricing by State

How We Calculated Solar Costs

Every price range in this guide is built from six inputs, cross-checked against multiple independent sources rather than one installer’s price sheet.

• Average installer pricing — live marketplace quotes from EnergySage, compared against SEIA/Wood Mackenzie industry reports.
• Cost per watt ($/W) — the standard unit installers use, so ranges compare fairly across system sizes.
• Equipment — panel, inverter, and racking prices by tier (standard vs. high-efficiency).
• Labor — regional installer labor rates, which is why the same system costs more in some states than others.
• Permits — building and electrical permitting fees reported by city and utility.
• Incentives — current federal, state, and utility programs, including the Section 25D change that took effect January 1, 2026.
• National averages — NREL cost benchmarks, used as a government-backed sanity check on marketplace pricing.

We update these inputs monthly. Where a number depends heavily on your specific home — like exact system size or roof condition — we give you a range instead of a single figure, and point you to our calculator for a personalized estimate.

01 Solar Panel Cost Per Watt Explained

Solar companies do not quote one flat price. They quote a price for each watt of power your system can make. (New to the basics? Our primer on what solar power is is a good place to start.)

Think of it like price-per-square-foot for a house. It does not tell you the total price by itself. But it lets you compare a small home and a big home in a fair way. Cost per watt does the same job for a small solar system and a big one.

Here’s a fact most guides leave out: the solar panels themselves are only a small part of your bill. The rest is what installers call “soft costs.” That’s a fancy word for labor, permits, inspections, the inverter (the box that turns solar power into power your home can use), mounting hardware, and the installer’s own profit. Panels usually make up somewhere between 12% and 30% of your total price. So when your neighbor says “panels got so cheap,” they are only talking about part of your bill. Labor and permitting have not dropped nearly as fast.

02 Average Solar Panel Cost in the United States (2026)

Different sources give slightly different numbers. But they all land close to the same range.

Bottom line: plan for $2.50–$3.50 per watt for a normal home system, before any discounts. If a quote is under $2.00/W, ask what is missing. If it is over $3.50/W with no clear reason (a steep roof, top-tier panels, a battery), get more quotes before you decide.

03 How Much Do Solar Panels Cost for a House? (By System Size)

Bigger systems almost always cost less per watt. Why? Some costs stay the same no matter the system size, like the permit fee and the visit to check your home. A bigger system spreads those same costs over more panels.

A 10 kW system does not usually cost double a 5 kW system. It’s closer to 1.6–1.8 times as much, because labor and permitting cost about the same either way.

Solar Panel Cost by Home Size (Square Footage)

Solar is not priced by your home’s square footage, the way flooring is. It is priced by how much electricity you use. Still, installers use a rough rule of thumb: about 1 kW of solar for every 200–250 sq ft of living space you heat and cool.

• 1,500 sq ft home: usually needs 4–6 kW → about $10,000–$21,000 installed. A pool pump, electric heat, or an electric car can push this toward the high end, even for the same size home.
• 2,000 sq ft home: usually needs 6–8 kW → about $15,000–$28,000 installed. This matches an “average home” the closest.
• 3,000 sq ft home: usually needs 8–12 kW → about $20,000–$42,000 installed, depending on how much of that space you heat and cool.

Your real electricity use matters more than your square footage. A small home that runs on electric heat can need a bigger system than a large home that mostly uses gas.

04 Solar Panel Cost Per Square Foot New

A different way to sanity-check a quote: cost per square foot of your home’s living space. Installers don’t price this way directly, but it’s a useful cross-check against the per-kW numbers in Section 03 — especially if a salesperson quotes you a number that seems out of line.

Nationally, buyers should expect somewhere around $9–$10 per square foot on average, though this swings widely based on your actual electricity use, not just your home’s footprint. Two identical 2,000 sq ft homes can need very different system sizes if one has electric heat, a pool, or an EV charger and the other doesn’t.

05 How Much Does One Solar Panel Cost? (DIY vs. Professional)

A standard home solar panel today makes 400–450 watts. Here is what that costs, two different ways:

That gap surprises a lot of first-time buyers. The panel is not the expensive part. Everything around it is.

Is DIY actually cheaper? Sometimes. But be honest with yourself about what you give up:

• DIY kits skip code-compliant wiring, permits, and the paperwork needed to connect to the power grid. A licensed installer normally handles all of that for you.
• A DIY install can void the panel or inverter’s warranty.
• Many state programs that give money back require a licensed installer. Go DIY, and you may not qualify.
• DIY makes real sense for small, off-grid jobs — like charging a shed, an RV, or a small cabin, often with a basic solar panel kit or a set of portable panels. A full system tied to your home’s power grid is a bigger job. Most homeowners still hire a licensed installer for that.

06 Monocrystalline vs Polycrystalline Solar Panel Cost New

Not all solar panels cost the same, even at the same wattage. The panel technology you choose affects both your upfront price and how much roof space you need — which then feeds back into your total installed cost.

Monocrystalline panels dominate the residential market today because they produce more power per square foot of roof — important if your roof is small, shaded, or has an odd shape. Polycrystalline panels can bring your per-watt equipment cost down slightly, but because you need more of them to hit the same total wattage, your overall installed price often lands in a similar range. Thin-film panels are the cheapest per watt but are rarely used for grid-tied home systems because of their lower output — they show up far more often in the DIY and off-grid category discussed in Section 05.

07 Cash vs Solar Loan vs Lease: Which Costs Less?

Most homeowners do not pay cash. They finance instead.

A $20,000–$30,000 system, paid off over 15–20 years, usually runs $120–$300 per month. The exact number depends on your interest rate and loan length. Many homeowners cover some or all of that payment with lower electric bills. But the loan payment and the bill savings are two separate numbers. Don’t assume they cancel out perfectly in year one.

• Cash purchase: no monthly payment, biggest cost upfront, no interest paid over time.
• Solar loan: $0 or low money down, a fixed monthly payment, and you own the system (plus any future tax benefits).
• Lease or PPA (power purchase agreement): no cost upfront, a fixed monthly fee instead of a loan payment, but you do not own the system. More on why that matters in Section 09.

08 Solar Panel Installation Cost Breakdown

Installation costs — labor, permits, inspection, mounting, and wiring — usually make up more than half of what you pay. That is a big reason prices differ more by state and installer than by panel brand.

If two installers quote the same panel brand but very different total prices, the difference is almost always hiding in labor, overhead, or profit — not the panels.

Permitting Fees: The Specific Numbers New

Permitting is usually the least-discussed line item, but it’s rarely a mystery once you know the range. Building and electrical department permitting fees typically run $110–$760 per installation, depending on your city and utility. Your installer should handle the paperwork, but you can ask to see this fee broken out separately on your quote.

Two Costs Installers Sometimes Add After the Site Visit New

• Electrical panel upgrade: Your home’s electrical panel should generally be rated at least 200 amps to support a solar installation. If yours is older or smaller, an upgrade can add a few thousand dollars to your total bill — this is one of the most common reasons a final invoice comes in higher than the original estimate.
• Tree trimming or removal: Large trees shading your roof can cost $300–$1,500 to remove or cut back. This isn’t part of your solar quote itself, but it directly affects how many panels you need and how much power they’ll produce, so it’s worth budgeting for separately.

Hidden Costs Many Homeowners Forget

These rarely appear on the first quote, but they show up often enough that you should ask about each one before you sign:

• Roof repair — installers won’t mount panels on a roof that needs work first; repair or partial reroofing can add $1,500–$8,000.
• Electrical upgrades and main panel upgrade — older or undersized panels (under 200 amps) often need an upgrade before solar can connect (see Section 08).
• Tree trimming — removing shade-causing branches can run $300–$1,500 and directly affects how many panels you need.
• Battery replacement — most home batteries last 10–15 years, well short of a panel’s 25-year life, so budget for a $6,000–$15,000 replacement down the road if you add storage.
• Monitoring subscription — some inverter brands charge $3–$15/month for the app that tracks your system’s output past the first year or two.
• Maintenance — cleaning and inspection are ongoing costs, not one-time costs (see Section 15).

09 The Big 2026 Change: The Federal Tax Credit Is Gone for Buyers

The federal solar tax credit for buyers — Section 25D — ended December 31, 2025. Anyone paying cash or using a solar loan in 2026 gets $0 federal credit. It’s still available indirectly through leases and PPAs. A lot of older or out-of-date guides still get this wrong.

Here’s what happened. For almost 20 years, homeowners who bought a solar system with cash or a loan could get 30% of the cost back on their federal taxes. Think of Section 25D like a coupon the government gave you at tax time.

In July 2025, Congress passed a new law called the One Big Beautiful Bill Act. This law ended Section 25D for any system turned on after December 31, 2025. There was no slow step-down. It just stopped, like a light switch.

What that means for you in 2026:

• Buy your system with cash or a solar loan → $0 federal tax credit. The coupon is gone.
• Sign a lease or a PPA (a “power purchase agreement,” which just means a company owns the panels on your roof and sells you the power) → the company that owns the system can still claim a similar 30% credit, under a different rule called Section 48/48E. That company can pass some of that savings to you as a lower monthly bill. You never file for it yourself, and you never own the panels.
• If your system was fully installed and turned on by December 31, 2025, you still qualify for the old 30% credit on your 2025 tax return, even if you are only filing for it now.

There is one more deadline to know. Companies that offer leases or PPAs usually need to start building your system before July 4, 2026, to lock in the strongest version of that business tax credit. Ask any lease or PPA company directly if their project meets this deadline. Do not assume it does.

Here’s the biggest wrong idea floating around right now: a lot of homeowners still think they will get “30% back,” because that is how solar worked for years. In 2026, that is only true if you go the lease or PPA route — not if you buy the system yourself. If a salesperson tells you a cash purchase still gets a federal tax credit, that is out of date or simply wrong. Check with a tax professional before you sign anything.

What is still available to you:

• State tax credits — some states, like South Carolina and New York, still offer their own credits
• Net metering — a program where you get credit for extra power your panels send back to the grid
• Property tax breaks on the added home value, in many states
• Sales tax breaks on the equipment, in some states
• Utility rebates, in some areas

Since the federal credit is gone for buyers, your state and local programs now matter a lot more than they used to. Check your state energy office and your power company before you sign any quote.

10 Solar Panel Pricing by State

Labor rates, permit fees, and the number of installers competing for your business all change a lot from state to state. Here is a 2026 snapshot for all 50 states, based on an 8 kW system.

A few patterns worth knowing:

• Cheapest region: the Sun Belt. Arizona, Nevada, New Mexico, and Texas have lots of sun and lots of installers competing for your business.
• Most expensive region: the Northeast and upper Midwest. This is mostly about labor cost and fewer installers, not the weather.
• Cold, cloudy states like Maine and Vermont often need bigger systems, because they use more electricity for heat in winter. That raises the total price even when the per-watt rate looks the same as a nearby state.
• A high price does not always mean a bad deal. States like New Jersey and Massachusetts have higher electric rates and stronger state programs. So your money can come back faster there, even if the system itself costs more upfront.

Quick State Answers (8 kW System)

• Cost of solar panels in CT (Connecticut): $23,200–$28,000, one of the higher-priced Northeast states due to labor costs.
• Cost of solar panels in Missouri: $20,400–$24,800, close to the national average.
• Cost of solar panels Indiana (also written as “cost of solar panels in Indiana” or “how much do solar panels cost in Indiana”): $20,000–$24,000.
• How much do solar panels cost in South Carolina: $20,400–$24,400, with a state tax credit still available to offset the loss of the federal one.
• How much do solar panels cost in Maine: $23,200–$27,600, on the higher end because of labor rates and a smaller installer network.
• How much do solar panels cost in New Hampshire: $23,600–$28,000.
• How much do solar panels cost in Vermont: $23,600–$28,400, one of the highest in the Northeast.
• Cost of home solar panels in Delaware: $22,000–$26,000.
• Solar panel cost AK (Alaska): $23,000–$27,000. Alaska runs higher than most states because of remote logistics and fewer competing installers.
• Solar panel cost KS (Kansas): $20,200–$23,700, right around the national average.

11 Solar Panel Prices by City

Local permit fees, how many installers compete near you, and common roof types can all change the price, even within the same state. These are 2026 planning numbers for a 7–8 kW home system. Always get a real quote from a local installer — this table is a starting point, not a promise.

If your city isn’t listed here, use the state table above as your starting point. Prices between cities in the same state usually differ by only a few cents per watt.

Real Cost Examples

Ranges are useful, but real installed prices make the math concrete. Here are three actual system profiles from different states:

Notice California’s cost per watt is higher than Texas or Florida despite similar sun exposure — that gap is almost entirely labor and permitting cost (see Section 10), not equipment.

12 Commercial Solar Panel Cost

Businesses usually pay less per watt than homeowners. Why? Business systems are bigger, so fixed costs get spread across more panels. In 2026, commercial solar usually runs $1.80–$2.50 per watt, compared to $2.50–$3.50/W for homes.

A 100 kW system on a business rooftop might cost $180,000–$250,000 before any discounts.

Commercial buyers should also plan for commercial solar panel cleaning cost. Big arrays often need a work crew and special equipment — not a garden hose. Most guides for homeowners skip this, but business buyers need to budget for it. Commercial cleaning usually costs more per panel than home cleaning, since safety gear and lift equipment add extra work time.

13 How Long Does It Take Solar Panels to Pay for Themselves?

The price you pay upfront is only half the story. The other half is what solar power actually costs you over time, compared to what you would pay your power company.

Power company rates have gone up 3–5% a year, on average, for many years. That gap is why most homeowners still earn back their solar cost in 8 to 15 years, even without the old federal tax credit. Your own payback time depends a lot on your state’s power rates and any programs still available to you.

14 Do Solar Panels Increase Home Value? New

Most solar guides stop at your electric bill. But solar panels are also a property investment, and this is the piece almost every 2026 pricing guide leaves out.

Housing market research has found that homes with rooftop solar panels tend to sell for about 4% more than comparable homes without solar — and they tend to sell roughly 20% faster, too. On a median-priced U.S. home, that resale premium alone can offset a meaningful chunk of your installed cost over the years you own the house.

A few things worth knowing before you count on this:

• Ownership matters. A system you own (cash or loan) typically adds more resale value than a leased system or an active PPA, since a buyer would need to take over your lease or PPA contract.
• Many states exempt the added value from property tax. In states with a solar property tax exemption, your home’s assessed value can go up because of the panels without your property tax bill going up to match — meaning you get the resale benefit without a bigger annual tax bill.
• Buyers increasingly ask about it. As grid electricity prices keep climbing 3–5% a year (see Section 13), a paid-off or low-cost solar system has become a genuine selling point in a real estate listing, not just a novelty.

15 Maintenance, Cleaning, and Inspection Costs

Solar systems don’t need much upkeep, but they aren’t completely maintenance-free. Plan for these costs every year, not just at install time:

Homes near dust, pollen, or farmland often need cleaning twice a year instead of once. Bigger or hard-to-reach roofs cost more per cleaning visit.

What is the maintenance cost of solar panels? Most homeowners spend $150–$400 a year on general upkeep, plus $150–$350 whenever a cleaning is due. That is the honest, full-year number — not just the cleaning cost by itself.

Solar panel inspection cost runs $150–$300 for a professional check of your panels and their performance. It’s worth doing every 3–5 years, before you sell your home, or any time you want to confirm your system is working as it should.

Cost of solar panel cleaning, specifically: plan for $3–$5 per panel, or $150–$350 for a typical home visit — or a bit more if you hire a dedicated cleaning service rather than your original installer.

16 Solar Panel Removal Cost

If you are getting a new roof, moving, or shutting down a system, removal is a separate cost from installing it. This is one a lot of buyers forget to plan for. Solar panels removal cost and how much does it cost to remove solar panels ask the same question, so here is the full answer.

• Taking off and putting back a home system usually runs $1,500–$6,000, depending on system size and how hard your roof is to reach.
• Most installers charge $200–$500 per hour, or a flat rate per panel, plus a separate fee to put the panels back once roof work is done.
• Some installers or power companies charge a “reset” or recommissioning fee. This fee lets them legally reconnect your system to the power grid after it has been offline. It’s a normal part of most grid agreements, not a scam — but get the amount in writing before you schedule any roof work.

Is a $300 solar panel removal reset cost legal? Yes. A flat fee in the $200–$500 range to reconnect your system to the grid, after it goes offline and back online, is a normal, written part of most utility and installer agreements. It is not a hidden scam charge. That said, “normal” doesn’t mean you should skip checking it. Always ask your installer or power company to show you exactly where that fee is written in your agreement before you pay it.

17 What Solar Costs Outside the U.S. (For Reference Only)

U.S. solar runs roughly 2–8x more per watt than in countries like Pakistan, the Philippines, or Australia — mostly because of higher U.S. labor, permitting, and overhead costs, not panel prices. Here’s how it breaks down:

18 9 Factors That Affect Solar Panel Installation Cost

Nine variables drive most of the difference between quotes. Here’s how each one moves your price:

• System size — bigger systems cost more overall, but lower your per-watt rate.
• Roof type — steep roofs, many angles, or heavy shade all add more work hours.
• Panel efficiency — top-tier panels cost more per watt but need less roof space to make the same power.
• Labor rates — the single biggest reason identical systems cost more in one state than another (see Section 10).
• State — local incentives, permitting speed, and installer competition can push your price up or down.
• Permits — building and electrical permit fees typically run $110–$760, a small but real line item.
• Battery storage — adding a battery usually adds $8,000–$20,000 to the project.
• Inverter type — string inverters cost less; microinverters or power optimizers cost more but perform better on shaded or complex roofs.
• How you pay — cash is cheapest over time. Loans raise your real cost per watt by a few cents, because of interest.

The Biggest Myth in Solar Pricing Right Now

Many old articles — and some salespeople — still talk about solar like the 30% federal tax credit applies to any purchase. It does not, not anymore, not for a cash or loan purchase in 2026. If a quote or article does not mention Section 25D expiring, be careful with every price in it. It may be pricing your system as if that old credit still exists.

Here’s a second, quieter myth: “solar means you’ll never pay for electricity again.” Most homeowners still pay something — grid fees, minimum charges, and nighttime power use that solar without a battery cannot cover. Solar cuts your bill by a lot. It rarely erases it completely, unless you pair it with a battery and use power in just the right way.

19 Is Solar Worth It? Quick Checklist New

Solar isn’t automatically the right move for every home. Run through this checklist before you request quotes — the more boxes you check, the stronger the case for solar in your situation. For a deeper dive into the full worth-it question beyond just the numbers, see our guide on whether solar panels are worth it.

• Your household uses a lot of electricity — roughly 11,500 kWh per year or more
• Your electric rate is on the higher side — above roughly $0.17 per kWh
• Your state or utility still offers a meaningful incentive (tax credit, rebate, or net metering)
• Your roof gets strong, mostly unshaded sun exposure, ideally facing south
• You plan to stay in the home long enough to benefit from the payback period (see Section 13)
• Going solar fits comfortably into your budget, whether paying cash or financing

If most of these apply to you, solar is very likely to pay for itself well within its lifespan. If only one or two apply, it’s still worth getting quotes — a good installer can tell you whether your specific numbers still work in your favor, even without checking every box.

Common Solar Cost Myths

Myth 1: Solar always costs $50,000. Reality: most home systems cost $18,000–$31,000 before incentives (see Section 02). $50,000+ systems exist, but they’re usually large systems with a battery, not the typical home job.

Myth 2: Cheap panels always save money. Reality: long-term performance matters more than sticker price. A low-efficiency panel that degrades faster can cost you more in lost electricity over 25 years than the upfront savings were worth.

Myth 3: Every home gets the same savings. Reality: location matters. Your electric rate, sun exposure, roof angle, and state incentives all change your actual payback time — two identical systems can pay off years apart depending on where they’re installed.

20 How to Size a System and Avoid Overpaying

1. Start with your electric bill, not your roof. Pull 12 months of power bills and add up your total electricity use. That number should drive your system size much more than your square footage does.
2. Use the rough sizing rule as a sanity check. About 1 kW of solar for every 200–250 sq ft of space you heat and cool is a fair starting guess. Your real usage matters more, though.
3. Get at least three quotes, and compare warranties too. Compare cost per watt — not the total price — plus the panel, inverter, and workmanship warranty on each quote. Search for solar installers near you or browse larger solar installation companies to start collecting quotes.
4. Ask what equipment tier is included, including panel efficiency. A very low quote may use a cheaper, lower-efficiency panel or inverter. A very high quote should have a clear reason: a steep roof, top-tier panels, or a battery.
5. Verify installer certifications and licensing before you sign anything — a legitimate installer should hand this over without hesitation.
6. Check your financing path before you sign. If a lease or PPA salesperson says a 30% federal credit applies, ask exactly how — it should flow through Section 48/48E on their side, not straight to you.
7. Check your state’s programs on your own, separate from the quote. Installers do not always mention every program you might qualify for.
8. Confirm your roof’s condition before installation. A roof that needs repair or replacement soon should be fixed first — installing around a bad roof costs more in the long run (see Section 16).
9. Ask about hidden fees, and plan for ongoing costs. Cleaning, inspection, and eventual removal or reinstall costs (see Hidden Costs) are ongoing costs — not one-time costs already baked into the sticker price.

Want to run your own numbers before you talk to an installer? Try our solar panel calculator to get a starting estimate based on your usage.

Frequently Asked Questions

Trusted Sources

• U.S. Department of Energy
• U.S. Energy Information Administration (EIA)
• Internal Revenue Service (IRS)
• DSIRE (Database of State Incentives for Renewables & Efficiency) — not linked here since it isn’t a .gov domain; verify current incentives directly at your state energy office.