Permit type guide · ranked #7 nationally
Solar panel permits — complete guide (2026)
Required in most jurisdictions for rooftop and ground-mounted solar. Many states have streamlined solar permitting to single-day approval. Covers both structural and electrical requirements.
National avg: $100–$500
Approval: 1 day–3 weeks
All 50 states
#7 by volume
~450KIssued annually
$100–$500National avg cost
1 day–3 weeksTypical approval
5–6%Share of all permits
Solar panel installation requires both a building permit (structural) and an electrical permit in most jurisdictions. Many states have adopted SolarAPP+ for instant online approval — ask your installer if your area participates.
When you need a solar permit
| Work type | Permit required? | Notes |
|---|---|---|
| Rooftop solar (any size) | Always | Structural + electrical permits |
| Ground-mounted solar | Always | May also need grading permit |
| Battery storage (Powerwall etc.) | Always | Electrical permit for inverter/battery |
| EV charger with solar | Always | Separate electrical permit |
| Panel addition to existing system | Always | Permit modification required |
| Portable solar generator | Never | No permanent installation |
| Solar water heater (simple) | Depends | Some jurisdictions exempt |
How to get a solar permit — step by step
1
Get a solar proposal from a licensed installer
Your installer will handle permitting in most cases. Confirm this is included in your contract before signing.
2
Installer submits permit application
Requires system design documents: panel layout, racking specs, single-line electrical diagram, and structural load calculations.
3
Permit approval (1 day to 3 weeks)
Many jurisdictions now use SolarAPP+ for instant approval. Traditional plan review takes longer. California, Arizona, and Florida are the fastest.
4
Installation
After permit approval, work begins. Do not install before permit is approved — inspectors will require removal and reinstallation.
5
Inspection and utility interconnection
After installation, a building inspector checks the physical installation and an electrician checks the electrical work. Then utility interconnection approval is needed before turning the system on.
Cost by project type
| Project | Permit fee range | Typical timeline |
|---|---|---|
| Residential rooftop (5–10 kW) | $100–$300 | 1–5 days |
| Residential rooftop (10–20 kW) | $200–$450 | 2–7 days |
| Ground-mounted system | $200–$500 | 3–14 days |
| Battery storage add-on | $75–$200 | 1–3 days |
| Commercial solar | $500–$2,000+ | 2–8 weeks |
Frequently asked questions
What is SolarAPP+?
SolarAPP+ is a federally-developed online tool that allows instant permit approval for standard residential solar installations. Over 200 jurisdictions now use it. Ask your installer if your area is enrolled.
How long does the full solar permitting process take?
From application to utility interconnection, the total process is typically 4–12 weeks. The permit approval itself may be fast, but utility interconnection approval adds weeks.
Do I need a permit for a solar generator?
No — portable solar generators (like Goal Zero or EcoFlow units) do not require permits because they're not permanently installed.
Can I install solar myself without a contractor?
DIY solar is possible in some states but you'll still need to pull permits, have a licensed electrician sign off on the electrical work, and get utility approval. Most homeowners use licensed installers.
Data sources: Shovels.ai national permit aggregator · US Census Bureau BPS · IRC/IBC 2024