Home›
Learn›
How Much Does It Cost to Install Solar Panels in 2026?
Solar Costs
How Much Does It Cost to Install Solar Panels in 2026?
Last updated: May 2026 · MySolarLoanCompanion.com/learn/
The average cost to install residential solar panels in 2026 is $25,000–$30,500 for a typical 7–8 kW system, or $2.50–$3.80 per watt installed. The 30% federal residential tax credit (Section 25D) expired December 31, 2025 and no longer applies to loan or cash purchases.
Cost by System Size — 2026 National Averages
| System Size | Typical Home | Cost Before Incentives | Monthly kWh Offset |
|---|
| 3 kW | Under 1,000 sq ft / low usage | $7,500–$11,400 | ~330 kWh |
| 5 kW | 1,000–1,500 sq ft | $12,500–$19,000 | ~550 kWh |
| 7 kW | 1,500–2,500 sq ft | $17,500–$26,600 | ~770 kWh |
| 8 kW | 2,000–3,000 sq ft | $20,000–$30,400 | ~880 kWh |
| 10 kW | 3,000+ sq ft / high usage | $25,000–$38,000 | ~1,100 kWh |
| 12 kW + battery | High usage / backup power | $35,000–$55,000 | ~1,300 kWh + storage |
Cost by State Tier — Per-Watt Installed
| Cost Tier | States | Per-Watt Range | 7 kW System Cost |
|---|
| Low ($2.50–$2.80/W) | AZ, NV, FL, TX, NM, CO | High competition, good irradiance | $17,500–$19,600 |
| Mid ($2.80–$3.10/W) | CA, GA, NC, VA, WA, OR | Strong markets, moderate permitting | $19,600–$21,700 |
| High ($3.10–$3.60/W) | MA, CT, NY, NJ, RI, VT | Higher labor and permitting costs | $21,700–$25,200 |
| Premium ($3.60+/W) | HI, AK | Remote logistics, island grid complexity | $25,200+ |
Sources: Modernize.com Solar Cost Report 2026; A1SolarStore cost analysis April 2026; NuWatt Energy dealer fee analysis March 2026; EIA residential electricity data
Key Details
- The federal Section 25D tax credit expired December 31, 2025 — The One Big Beautiful Bill Act removed the residential ITC for homeowners purchasing or financing outright. Cash buyers and loan borrowers receive no federal credit in 2026. Lease and PPA customers benefit indirectly through the commercial Section 48E credit claimed by the third-party owner.
- Most households need 7–8 kW — The average US home uses 886 kWh/month (EIA). A 7–8 kW system in most regions covers 90%–100% of that usage depending on roof orientation and local sun hours.
- Battery storage adds $8,000–$15,000 — The 40%+ battery attachment rate nationally (79% in California post-NEM 3.0) pushes average financed amounts significantly higher. Batteries qualify for Section 48E under third-party ownership.
- Dealer fees inflate loan amounts by 15%–30% — NuWatt Energy's 2026 analysis documents an average 22% dealer fee, adding $5,700+ to the loan balance on a $26,000 system before interest. Always ask your installer for the cash price separately from the financed price.
- Payback period is 6–10 years in most markets — NuWatt documents a 6.4-year payback in New Jersey at $2.81/watt. High-rate states (MA, CT, CA, HI) often see faster payback despite higher installation costs due to expensive grid electricity.
- Solar adds ~4% to home resale value — Lawrence Berkeley National Lab data shows owned solar systems increase home sale prices by approximately 4%, or ~$20,000 on a $500,000 home.
Ready to compare real solar loan offers in your area? Takes under 2 minutes. No credit check. No obligation.
See My Solar Options →