How much does it cost to install solar panels in 2026?

The national average for a residential solar installation in 2026 is $2.90–$3.80 per watt before any incentives, or $20,300–$26,600 for a typical 7 kW system. In high-cost markets like California and Massachusetts, installed costs reach $3.80–$4.60 per watt. In lower-cost markets like Texas and the Southeast, $2.60–$3.20 per watt is more typical. The federal 30% ITC expired for homeowner purchases on January 1, 2026, so state-level incentives are now the primary offset.

What does solar installation cost include?

A solar installation quote should include: solar panels (30–40% of total cost), inverter(s) (10–15%), mounting hardware and racking (10–12%), wiring and electrical components (8–10%), labor (15–20%), permits and utility interconnection fees (5–8%), and installer margin (remaining). Some quotes also include monitoring equipment, roof work if needed, or an electrical panel upgrade. Always request an itemized quote to see what is and is not included.

What is not included in most solar installation quotes?

Items commonly omitted from initial solar quotes include: electrical panel upgrade if your current panel is inadequate (typically $1,500–$3,500 extra), roof repairs or replacement needed before installation, tree trimming for shading issues, permit fees in some markets (often listed separately), and battery storage if you want backup power. Ask your installer specifically whether these items are included before comparing quotes.

How much does solar installation labor cost?

Labor typically accounts for 15–20% of a residential solar installation cost. On a national average system cost of $23,000, that is roughly $3,500–$4,600 for labor. Labor rates vary significantly by market — high cost-of-living areas charge more. DIY solar installation can save 15–20% on total cost but requires electrical permits, inspection, and appropriate skills. Most homeowners are not suited for DIY solar.

Do solar installation costs include the inverter?

Yes, reputable installer quotes include the inverter as part of the total system cost. Inverters account for roughly 10–15% of total installation cost — approximately $2,000–$3,500 for a string inverter or $3,000–$5,000 for microinverters on a typical system. If a quote seems unusually low, verify whether the inverter is included and which brand/model is specified.

How can I reduce my solar installation cost?

The most effective ways to reduce solar installation cost: (1) Get multiple competing quotes — homeowners who compare 3+ quotes save an average of $5,000–$10,000. (2) Apply for state-level incentives, SRECs, and utility rebates — in some states, these can reduce net cost by 25–40%. (3) Consider a solar loan rather than a lease — while a lease has no upfront cost, ownership through a loan results in significantly higher total savings. (4) Be skeptical of unusually low quotes — they often involve inferior equipment or hidden costs.

Solar Installation Cost in 2026: What You'll Actually Pay (All-In)

The question "how much does solar cost?" gets asked constantly, but it mixes up two different things: the cost of the panels themselves, and the cost of getting them on your roof and connected to the grid. This guide covers the full installed cost — every line item from panels to permits.

The short answer for 2026: expect $2.90–$3.80 per watt installed, or $20,000–$27,000 for a typical 7–8 kW system before incentives. Here is what goes into that number.

National Average Installed Costs by System Size

|---|---|---|---|

| 4 kW | Small home, low usage | $11,600–$15,200 | $9,000–$13,000 |

| 6 kW | Medium home, avg usage | $17,400–$22,800 | $13,500–$19,000 |

| 8 kW | Medium-large home | $23,200–$30,400 | $18,000–$26,000 |

| 10 kW | Large home, EV charging | $29,000–$38,000 | $22,500–$32,000 |

| 12 kW | Large home, heavy usage | $34,800–$45,600 | $27,000–$39,000 |

Federal ITC expired for purchased residential systems on January 1, 2026. State incentive estimates assume moderate-incentive states (NJ, MD, IL, WA). High-incentive states (NY, MA, CT) can reduce net cost 30–40% below gross.

The Full Cost Breakdown: Where Your Money Goes

A properly installed solar system has several distinct cost components. Here is what each typically represents as a percentage of total installed cost:

Solar Panels: 30–40% of Total Cost

Panels are typically $0.80–$1.20 per watt of module-level cost. A 10 kW system uses 25–30 individual panels, costing $8,000–$12,000 in modules alone.

Panel brand and technology significantly affect this number:

Qcells Q.PEAK DUO (popular mid-tier): ~$0.85/W
REC Alpha (premium mid-tier): ~$0.95/W
SunPower Maxeon 6 (premium): ~$1.20–$1.40/W

The efficiency difference between mid-tier and premium panels is real — but unless roof space is constrained, paying the premium for efficiency rarely pencils out financially.

Inverter: 10–15% of Total Cost

The inverter converts DC electricity from your panels to AC electricity your home uses. Options and costs:

String inverter (one inverter for the whole system): $800–$2,000 for the unit, $200–$400 labor. Lowest cost, but one shaded panel can reduce whole-system output.
Microinverters (one per panel): $200–$350 per unit x number of panels. Higher upfront cost, better performance in partial shade, simpler panel-level monitoring.
Power optimizers + string inverter (SolarEdge): $1,500–$3,500 total. Middle ground.

Most residential installs in 2026 use either Enphase microinverters or SolarEdge string inverters with optimizers.

Racking and Mounting: 10–12% of Total Cost

The hardware that attaches your panels to your roof matters more than it sounds — it needs to support 25+ years of wind, rain, snow, and thermal cycling. Budget $1.50–$2.50 per watt for mounting hardware on a standard asphalt shingle roof.

Metal roofs cost slightly more to mount on; flat roofs with ballasted racking can cost more or less depending on design.

Labor: 15–20% of Total Cost

Installation labor — the crew that physically mounts panels, runs wiring, and connects the system — typically accounts for $0.50–$0.80 per watt, or $5,000–$8,000 on a typical 10 kW system.

Labor costs vary significantly by region. In high cost-of-living markets (California, New York, Massachusetts), labor is at the higher end. In the Southeast and Mountain West, labor costs are typically lower.

Electrical Work and Wiring: 8–10% of Total Cost

Running wiring from your roof array to your electrical panel, installing disconnect switches, and all associated electrical materials typically runs $800–$1,500 for a standard installation.

Permits and Interconnection: 5–8% of Total Cost

Solar installations require building permits from your local government and interconnection approval from your utility. These fees vary widely:

Building permit: $200–$800 depending on municipality
Utility interconnection fee: $100–$500 depending on utility
Inspection fee: $100–$300

Some installers include permits in their quoted system cost; others list them separately. Always clarify.

Installer Overhead and Margin: 15–20% of Total Cost

Installers need to cover their business costs (insurance, vehicles, software, sales, customer service, warranties) and make a profit. This is not a flaw in the system — it is what funds the workmanship warranty, the post-install service, and the business existing in 5 years when you need help.

What matters is that you are not paying above-market margin through a lack of competing quotes.

Find out what installers actually charge in your area

EnergySage collects competing quotes from vetted local installers and presents them in a standardized format — so you can see real installed costs in your market without the sales pressure.

Learn More

Solar Installation Costs by State (2026 Estimates)

State-level costs vary by labor rates, permitting costs, installer competition, and local utility practices.

|---|---|---|---|

| California | $3.60–$4.40 | $28,800–$35,200 | SGIP battery rebate; NEM 3.0 reduces value |

| Massachusetts | $3.40–$4.20 | $27,200–$33,600 | 15% state tax credit (capped $1,000), SMART incentive |

| New York | $3.20–$4.00 | $25,600–$32,000 | 25% state credit (capped $5,000) + NY-Sun rebates |

| New Jersey | $3.00–$3.80 | $24,000–$30,400 | SREC program, strong net metering |

| Texas | $2.60–$3.40 | $20,800–$27,200 | No state incentive; local utility rebates vary |

| Florida | $2.80–$3.50 | $22,400–$28,000 | No state income tax = no state credit; property tax exemption |

| Arizona | $2.80–$3.60 | $22,400–$28,800 | 25% state credit (capped $1,000) |

| Colorado | $3.00–$3.80 | $24,000–$30,400 | Utility rebates vary significantly |

| Illinois | $3.20–$4.00 | $25,600–$32,000 | SREC program (Illinois Shines) |

| Maryland | $2.90–$3.70 | $23,200–$29,600 | SREC program, 30% state grant in some programs |

Costs are estimated ranges as of mid-2026. Get local quotes for accurate pricing.

The Costs Most Installers Do Not Mention Up Front

Electrical Panel Upgrade

If your home has a 100-amp electrical panel, solar installation (especially with EV charging or a battery) may require upgrading to 200-amp service. Cost: $1,500–$4,000. Not always required, but more common in homes built before 2000.

Ask your installer whether your panel is adequate before signing.

Roof Work

If your roof has less than 10 years of remaining life, most reputable installers will either refuse to install or strongly recommend replacing the roof first. Removing and reinstalling solar panels when you eventually replace the roof costs $1,500–$4,000.

If your roof needs work, factor that into your timeline and total cost.

Battery Storage

A battery like Tesla Powerwall 3 or Enphase IQ Battery adds $10,000–$15,000 to the project cost. Not required for solar to work, but increasingly popular for backup power and time-of-use rate arbitrage.

Post-Install Service Plans

Some installers offer optional monitoring and service contracts ($15–$40/month). These are worth considering given the complexity of identifying performance issues on your own — but compare the cost to the specific coverage offered before adding them.

How to Make Sure You're Getting a Fair Price

Get at least three quotes. The single most effective cost-reduction strategy. Homeowners who compare quotes save $5,000–$10,000 on average vs. accepting the first offer.
Compare cost per watt, not total price. Divide each quote's total by system size in watts to compare apples to apples.
Request itemized quotes. Any installer unwilling to break out panel cost, inverter cost, and labor separately is hiding something.
Verify what is not included. Explicitly ask about permit fees, panel upgrade costs, and roof assessment results.
Check installer longevity. A 5% lower quote from a company that closes in two years is worse than a market-rate quote from a company that will be there for warranty claims.

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