How Much Does Solar Installation Cost in 2026?

Short answer: In 2026, the typical residential solar installation in the United States costs between $2.50 and $3.50 per watt installed, which works out to roughly $15,000–$30,000 for a 6 kW–10 kW system. The federal residential solar tax credit (Section 25D) expired December 31, 2025 under the OBBB Act, so homeowners can no longer claim the 30% ITC on a direct-purchase residential install. Solar leases and PPAs (third-party owned systems) may still capture the commercial 48E credit passed through to lessors. State rebates, utility incentives, and Solar Renewable Energy Credits (SRECs) further reduce net cost.

What determines the price of your solar system

Six variables drive 90% of the cost difference between two otherwise similar homes:

• System size (kW): Bigger systems cost more in total but less per watt. Doubling system size does not double the bill — soft costs (permits, labor, interconnection) are largely fixed.
• Panel tier: Tier-1 modules (Maxeon, Silfab, Qcells, REC) cost 10–20% more than budget panels but come with 25-year warranties and 0.25%/year degradation rates.
• Inverter choice: String inverters are cheapest. Microinverters (Enphase IQ8+) or DC optimizers (SolarEdge) add 5–15% to the price but improve shading tolerance and panel-level monitoring.
• Roof complexity: A simple south-facing composition-shingle roof installs quickly. Slate, tile, metal, multiple roof planes, or steep pitches add labor — sometimes 15–25% to the total.
• Battery storage: A 10–13 kWh battery (Tesla Powerwall 3, Enphase IQ Battery 5P, Franklin aPower) adds $10,000–$16,000 installed.
• State & utility costs: Labor rates, permit fees, interconnection charges, and fire-code setbacks all vary by jurisdiction. Expect NY, NJ, MA, and top solar installers in California to charge more than Texas, Arizona, or Florida. Colorado prices fall in between — see solar contractors in Colorado.

Typical 2026 price ranges by system size

These are all-in, installed prices. With the federal residential ITC expired, the gross price is now also the net price for most direct-purchase homeowners — state and utility rebates aside. Source: our directory of 600+ vetted contractors across NY, NJ, PA and beyond.

• 4 kW (small home, low usage): $11,000–$15,000
• 6 kW (average US home): $16,000–$22,000
• 8 kW (larger home, EV, or partial shade): $21,000–$28,000
• 10 kW (all-electric or EV + heat pump): $26,000–$34,000
• 10 kW + 13 kWh battery: $36,000–$48,000
• Commercial 50 kW rooftop: $100,000–$150,000

Incentives that reduce your net cost

Federal, state, utility, and market-based incentives stack:

1. Federal residential ITC (Section 25D): Expired December 31, 2025 under the OBBB Act — no longer available for residential direct purchases. Solar leases and PPAs (third-party owned systems) may still capture the commercial 48E credit passed through to lessors, and commercial owners can continue claiming 48E subject to its own deadline.
2. State rebates: New York NY-Sun, New Jersey SuSI, Pennsylvania AEPS, Massachusetts SMART — each structured differently. Your installer should apply on your behalf.
3. Utility rebates: Some investor-owned utilities (e.g., PSEG-LI, Con Edison) offer performance-based incentives or upfront rebates.
4. SRECs: In PA, NJ, MA, DC, MD, OH, and a handful of other states, every megawatt-hour your system produces earns a tradable certificate worth anywhere from $15 to $250, depending on the state and year.
5. Net metering: Not technically a rebate, but full retail net metering (where available) typically doubles the lifetime savings of a system.
6. Property tax exemption: Most states exempt the added value of a solar system from property tax reassessment.

Payback period — what to realistically expect

Payback on a residential system in 2026 ranges from 6 years (great sun + high electricity rates + SRECs) to 12+ years (low rates, no SRECs, cloudier climates). The Northeast, Hawaii, and California are typically at the faster end; the Pacific Northwest and parts of the South pay back more slowly. Battery storage adds 3–5 years to simple payback but provides outage resilience and, in some markets, additional revenue from VPP programs.

Cash, loan, lease, or PPA: which financing structure wins

• Cash purchase — best lifetime return. Full SREC revenue, no interest. With Section 25D expired, there is no longer a federal credit on a residential cash purchase — payback now depends on state/utility incentives and electricity rates. Requires roughly $15k–$30k up front.
• Solar loan — you own the system and capture state incentives. Modern solar loans are 15–25 years at 6%–9% APR. Without the federal residential ITC, the math is tighter than it was — make sure your installer models the loan with realistic incentives.
• Lease — no upfront cost; the installer owns the system and you pay a fixed monthly lease. The installer (as system owner) may still claim the commercial 48E credit, which often translates into a lower lease payment than under the old 25D regime. Typical savings 5%–15% off your current bill.
• PPA (Power Purchase Agreement) — you pay per kWh produced rather than a fixed lease fee. As with a lease, the system owner may capture 48E credits; you do not own the system.

Red flags that you are being overcharged

• A quote above $4.00/watt for a simple rooftop installation.
• A "limited-time" offer that expires the same week. Pricing should be valid for at least 30 days.
• Pressure to sign without seeing a line-item breakdown of equipment, labor, permits, and financing costs.
• An installer that will not share their state contractor license number or NABCEP certification.
• Lease or PPA contracts with annual price escalators above 2.9% — those can erode savings over 20+ years.

How to get an accurate quote

The single best step is to get three written quotes from licensed, insured local installers. Make sure each quote shows: system size in kW DC, panel make and model, inverter make and model, total gross cost, applicable tax credits and rebates, net out-of-pocket, and year-1 production estimate in kWh. Our Get Matched form connects you with up to five vetted contractors in under 24 hours — free and no obligation.