Rafter Research DeskUpdated Aug 15, 20264 min read
In 2026, the average residential solar installation costs between $18,000 and $40,000, with an average cost per watt of $3.03 for a standard 7.2 kW system. While the federal 30% tax credit has expired, homeowners can manage costs by evaluating local incentives and accounting for upcoming tariff-related price increases.
- •Typical system costs range from $18,000 to $40,000 for 7.2 kW to 12 kW setups.
- •The national average cost per watt is $3.03.
- •New Section 232 tariffs effective December 2026 will increase installation costs by 3–5%.
- •Adding battery storage increases total project costs by $10,000–$15,000.
The solar market has undergone significant structural changes in 2026. With the sunset of the federal Residential Clean Energy Credit (Section 25D) on December 31, 2025, the financial landscape for solar ownership has shifted. Homeowners now face a market where the upfront cash price is the primary driver of investment decisions. Our data indicates that a typical 7.2 kW to 12 kW system currently ranges from $18,000 to $40,000, depending on energy requirements and local labor market conditions.
Based on a 7.2 kW to 12 kW system average.
What is driving price increases in 2026?
Two primary factors currently influence the cost of solar hardware. First, the new Section 232 trade measures, announced in August 2026, introduce a 15% tariff on imported components including polysilicon, wafers, and modules. Second, a new minimum import price (MIP) floor of 38 cents per watt for modules takes effect on December 4, 2026. Industry projections indicate these trade policies will increase total installation costs by 3–5% as installers pass these hardware costs to the consumer. Equipment currently accounts for 46% of the total project cost, with the remaining 54% attributed to soft costs such as labor, permitting, and overhead.
How do regional factors impact my quote?
Solar installation is not a uniform expense across the United States. Labor markets, local permitting complexity, and state-specific policy environments create significant cost variance. Using our cost by state data, we observe that states with high competition and mature markets, such as Florida and Texas, generally see lower per-watt pricing. Conversely, states like Massachusetts and New York, which often involve higher union labor costs and more rigorous permitting requirements, sit at the higher end of the national average. When requesting quotes, ensure your contractor accounts for local code compliance, as structural engineering requirements remain a non-negotiable cost factor.
| Region/State | Cost Index | Market Context |
|---|---|---|
| Mississippi | 0.84 | Low labor cost |
| Texas | 0.92 | High competition |
| National Average | 1.00 | Baseline |
| Massachusetts | 1.28 | High labor/permitting |
| California | 1.32 | High regulatory overhead |
Is solar still a sound investment?
Despite the expiration of federal tax credits, solar remains a viable hedge against rising utility rates. The decision to install should be based on your specific energy usage (kWh) rather than roof square footage. While DIY installation is technically possible, the complexity of NEC electrical codes and the necessity of utility interconnection agreements make professional installation the standard for most homeowners. If you are concerned about grid reliability, adding battery storage is the most significant line-item increase, typically adding $10,000–$15,000 to your total project cost. For those looking to avoid the full upfront capital expenditure, third-party ownership models such as leases or power purchase agreements (PPAs) remain a common alternative to capture indirect tax benefits.
Get Accurate Local Pricing
Solar costs shift based on your specific zip code and utility provider. Use our cost calculator to generate a localized estimate based on 2026 market rates in your area.
Get 3 free quotes →Can I still get a tax credit for my solar panels?
No. The federal Residential Clean Energy Credit (Section 25D) expired on December 31, 2025. You cannot claim this credit for systems purchased in 2026.
How much does a battery add to the installation cost?
Adding battery storage generally increases the total project cost by $10,000 to $15,000, bringing the total investment for a typical system to $28,000–$35,000 or more.
Does my roof size determine the cost of the system?
No. System cost is primarily driven by your home's energy usage (kWh), the quality of the equipment selected, and local labor and permitting rates, not the physical square footage of your roof.
Why are solar prices expected to rise in late 2026?
New trade measures, including a 15% tariff on imported solar components and a 38-cent-per-watt minimum import price floor, take effect on December 4, 2026, which will increase hardware costs.
Sources
Reviewed by Rafter Research Desk · Updated Aug 15, 2026 · See our cost methodology.
