Solar Cost Guide 2026
What to expect to pay, what drives costs up or down, and how to get an accurate estimate.
Typical cost
$15,000 – $35,000per system
Before tax credits: $15,000–$35,000 for a 6–10 kW system. After 30% federal ITC: $10,500–$24,500. Cost per watt: $2.50–$3.50 installed. Battery storage adds $8,000–$15,000.
What affects solar cost
Before tax credits: $15,000–$35,000 for a 6–10 kW system. After 30% federal ITC: $10,500–$24,500. Cost per watt: $2.50–$3.50 installed. Battery storage adds $8,000–$15,000.
About solar projects
Solar contractors design and install photovoltaic (PV) systems for residential and commercial rooftops, as well as ground-mounted arrays. A typical residential solar system (6–10 kW) offsets 70–100% of electricity usage depending on roof orientation, shading, and local sun hours. The federal Investment Tax Credit (ITC) currently provides a 30% tax credit on the total installed cost, and many states and utilities offer additional rebates. Reputable solar installers handle the full process: site assessment, system design, permitting, installation, utility interconnection, and warranty support. Lease vs. purchase vs. loan financing each have different long-term economics.
How to keep solar costs in check
- ✓Ask for a site-specific production estimate based on your roof orientation, pitch, and shading.
- ✓Compare purchase, loan, and lease/PPA options — ownership typically provides the best long-term return.
- ✓Confirm the installer is NABCEP-certified (North American Board of Certified Energy Practitioners).
- ✓Ask about the warranty: panels (25 years), inverters (10–25 years), and workmanship (10+ years).
Cost FAQ
What is the average cost of solar work?
The average cost ranges from $15,000 to $35,000 per system. Before tax credits: $15,000–$35,000 for a 6–10 kW system. After 30% federal ITC: $10,500–$24,500. Cost per watt: $2.50–$3.50 installed. Battery storage adds $8,000–$15,000.
Why do contractor estimates vary so much?
Material quality, project complexity, local labor rates, and contractor overhead all affect pricing. A 30–50% variance between bids on the same project usually means different scopes — get line-item estimates and compare carefully.
How can I lower the cost without sacrificing quality?
Schedule during off-peak times (spring and fall are busiest for most trades). Get 3+ competing bids. Avoid making scope changes after work starts. Supply your own materials if you can find better pricing (discuss with contractor first).
Does homeowner's insurance cover this work?
Typically only if the damage is sudden and accidental (storm, fire, burst pipe). Routine maintenance, wear and tear, and improvements are not covered. Check your policy for specifics.
Find a licensed solar contractor near you
Browse verified local contractors in your area.
Browse Solar contractors