Energy
Solar Panel Installation: Cost, Permits & Timeline
Installing a grid-tied rooftop solar array with inverters and, optionally, battery storage.
Model reviewed August 2026
Typical cost
$26,500
$15,000 – $48,000
per watt installed
$2.4 – $3.8
Permit
Required
$150 – $500
Timeline
1-3 days of installation
1-3 days of installation, 6-14 weeks including permitting and utility interconnection
Do you need a permit for solar panel installation?
Yes
Solar Panel Installation is permitted and inspected work in essentially every jurisdiction. Typical fees run $150 to $500. A licensed contractor generally has to pull the permit.
What drives the cost
- System size in kW DC
- Panel and inverter selection (string versus microinverters)
- Battery storage
- Roof age, material and structural reinforcement
- Federal tax credit and utility interconnection fees
Permit, inspections and documents
| Permit status | required |
|---|---|
| Typical permit fee | $150 – $500 |
| Licensed contractor required | Usually yes |
| Owner-builder allowed | Rarely |
| Inspections | Structural / mounting inspection, Electrical rough, Final inspection, Utility interconnection |
| Timeline | 1-3 days of installation, 6-14 weeks including permitting and utility interconnection |
| DIY difficulty | 5/5 difficulty |
Documents typically required
- • Building and electrical permit applications
- • Engineered structural attachment plans
- • Single-line electrical diagram
- • Utility interconnection agreement
- • Equipment specification sheets
Solar Panel Installation cost by city
Local labor and material pricing applied to the national baseline.
| City | Typical range | vs national |
|---|---|---|
| New York | $24,300 – $77,800 | +62% |
| Los Angeles | $20,700 – $66,400 | +38% |
| Miami | $19,100 – $61,200 | +28% |
| Chicago | $18,800 – $60,100 | +25% |
| Phoenix | $15,600 – $49,900 | +4% |
| Dallas | $15,300 – $48,900 | +2% |
| Houston | $15,500 – $49,400 | +3% |
| Tampa | $16,300 – $52,200 | +9% |
| Denver | $17,100 – $54,800 | +14% |
| Orlando | $15,600 – $49,900 | +4% |
| Atlanta | $15,400 – $49,200 | +2% |
| Fort Lauderdale | $18,500 – $59,000 | +23% |
Solar Panel Installation across the country
National pricing, state-by-state pricing, and the tools behind both.
Frequently asked questions
Should I replace my roof before installing solar?
If your roof has fewer than about 10 years of life left, replace it first. Removing and reinstalling an array later commonly costs $3,000-$7,000.
Do I need a permit for solar panel installation?
In most jurisdictions this work is permitted and inspected. Requirements are set locally, so confirm the current application and inspection checklist with your building department before work starts.
How long does solar panel installation take?
1-3 days of installation, 6-14 weeks including permitting and utility interconnection. Permit review and inspection scheduling are usually the largest source of variation.
What changes the price the most?
The largest cost drivers are system size in kw dc; panel and inverter selection (string versus microinverters); battery storage.
Sources
Sources & verification
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.