Standard permit reviewUp to 30 business daysLocal building department, F.S. 553.792
Private provider reviewUp to 5 business daysSingle-family home, single-trade, F.S. 553.791
Utility to sign offUp to 30 calendar daysAfter a complete interconnection application
Utility inspectionUp to 30 calendar daysAfter you return the signed agreement

The short answer

Two clocks run one after another: your local government's building permit, then your utility's interconnection approval. The installation itself, mounting the panels and wiring the equipment, is usually the fastest part of the whole project, often a single day or two for a typical home. What determines how long "going solar" takes is how quickly the permit office and the utility move through their own review steps, both of which have maximum timeframes set by Florida law but plenty of room to run shorter, or occasionally longer.

Nothing about that timeline lets the system make power early. A grid-tied system has to stay off until the utility issues permission to operate, so the paperwork isn't a formality tacked onto the end, it's the last real step before the system does anything.

How long the permit itself takes

For a typical residential rooftop system going through standard local review, Florida Statute 553.792 gives the building department up to 30 business days to complete its first review of the permit application. That's the legal maximum, not the norm, a lot of offices move faster. If the county misses that window, the law requires it to reduce the building permit fee by 10 percent for every business day it's late, unless the applicant caused the delay, both sides agreed to an extension, or a force majeure event applies. Since July 1, 2026, work valued under $15,000 on an existing single-family home gets a shorter clock: 5 business days, including electrical permits. Our guide to Florida solar laws covers the other 2026 changes.

If the office responds with a deficiency notice and the installer resubmits within 10 business days, the county then has 10 business days to approve or deny that revision, with a steeper 20 percent per-day fee reduction if it misses that shorter deadline. Getting the application complete and accurate on the first submission is the single biggest thing an installer controls here.

The faster path: a private provider

Florida also lets a permit applicant skip the wait for county building review, by hiring a private provider, a licensed engineer or architect approved to review plans independently, under Florida Statute 553.791. For a single-trade permit review on a single-family or two-family home, which covers most rooftop solar jobs, the local building official then has only 5 business days to weigh in. Miss that window, and the permit is automatically deemed approved as a matter of law, issued the next business day.

Not every installer offers this route, and it usually comes with an added fee for the private provider's own review. It's worth asking about directly, especially in a county with a known permitting backlog.

Utility interconnection and permission to operate

A building permit and a passed inspection get the hardware legally installed. They don't let it turn on. Before a grid-tied system in Florida can export power, the utility has to approve the interconnection, under Florida Public Service Commission Rule 25-6.065. The utility has 10 business days to confirm the application is complete, up to 30 calendar days to execute the signed interconnection agreement once it is, and up to 30 calendar days after that to complete its own inspection and issue what's called permission to operate, or PTO.

Only after PTO is issued can the system legally produce and export power. Until then it has to stay off, the same anti-islanding safety rule covered on our hurricanes guide, which exists so a "live" system can't endanger a utility crew working on a line they believe is de-energized.

A technician's gloved hand on a disconnect switch beside two utility meters on a Florida home
The utility's meter and disconnect switch are where interconnection becomes physical: nothing exports until permission to operate is issued.

The installation itself is quick

Compared with the paperwork, physically installing solar on an average Florida home is fast, commonly a single day for the mounting and wiring, sometimes two for a larger or more complex roof. The final building inspection that follows is usually scheduled within a few days of the installer calling for it, and tends to move faster than the original permit review, since it's confirming completed work against an already-approved plan rather than reviewing a new design from scratch.

A realistic timeline, start to finish

Put the pieces together and a realistic Florida solar project commonly runs several weeks to a few months from a signed contract to permission to operate, not because the installation takes that long, but because two separate reviews, the permit and the interconnection, run one after the other rather than at the same time.

The biggest variables are which permit path is used (standard county review versus a private provider), how busy the specific utility's interconnection team is, and whether the local city or county has a permitting backlog. Ask your installer directly which path they use and roughly how long their last several jobs took in your specific city or county; a recent, specific answer from them is more useful than any general range, including this one.

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Common questions

How long does it take to go solar in Florida, start to finish?

Commonly several weeks to a few months from a signed contract to permission to operate. The installation itself is usually a day or two; the rest of the time is split between your local building department's permit review and your utility's interconnection approval, which run one after the other, not at the same time.

How long does the building permit itself take?

Up to 30 business days for the county or city's first review, under Florida Statute 553.792. If the office misses that deadline, state law requires a 10 percent reduction in the building permit fee for every business day it's late, unless the delay was caused by the applicant or both sides agreed to an extension.

What is a “private provider” and how does it speed up permitting?

A private provider is a licensed engineer or architect approved under Florida Statute 553.791 to review permit plans independently of the local building department. For a single-trade review on a single-family or two-family home, which covers most rooftop solar jobs, the local building official then has only 5 business days to weigh in, or the permit is automatically deemed approved as a matter of law. Ask your installer whether this option is available in your county.

Can my solar panels turn on as soon as they're installed?

No. A grid-tied system has to stay off until your utility issues permission to operate, after reviewing and signing the interconnection agreement and completing its own inspection. This isn't a formality; it's a safety rule so the system can't feed power onto lines a utility crew believes are de-energized. Our hurricanes guide covers why the same rule keeps solar from powering a home during a grid outage.

How long does the utility take to approve interconnection?

Under Florida Public Service Commission Rule 25-6.065, the utility has 10 business days to confirm your application is complete, up to 30 calendar days to execute the signed interconnection agreement, and up to 30 calendar days after that to inspect and issue permission to operate. Add those up and utility approval alone can take a month or two even when nothing goes wrong.

Does the timeline differ by city or county?

Yes, significantly. The windows in state law are maximums, not typical wait times, and how close a given office runs to that ceiling depends on local staffing and how busy the permitting office is. A specific, recent number from your installer, based on their last several jobs in your city or county, tells you more than any statewide average.

What can slow the process down beyond the legal deadlines?

A permit application with missing information, a design that needs revision after the first review, an HOA or condo approval step where one applies, and utility-side backlog during storm season are the most common causes. Getting the application right the first time, and asking upfront which permit path your installer uses, avoids most of the delay that isn't set by law.

Can I do anything to speed it up?

Ask your installer whether a private provider review is available in your county, since it cuts the local review window from 30 business days to 5. Beyond that, most of the wait isn't within your control, it's the two review clocks running their course, but a complete, accurate application on the first try avoids the most common cause of extra delay: a rejection and resubmission cycle.

This page is general information about Florida's permitting and interconnection process, not legal advice or a promise of any specific timeline. Sources: Florida Statute 553.791 · Florida Statute 553.792 · Florida Public Service Commission Rule 25-6.065, reviewed September 2026.

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