Florida Utilities and Solar: Who Sets the Rules

Most homeowners begin with panels: which brand, how many, how much. The more useful first question is quieter. Who is your electric utility, and who writes its rules?

Everything downstream depends on the answer. The application you file, the equipment an inspector expects to see, the meter that gets installed, the fixed charges that stay on your bill, and the way any surplus production is treated are all utility-level decisions. A proposal that assumes one utility’s rules can be quietly wrong for a home two counties away.

Florida law does not treat all electric providers the same way. The definition of a “public utility” in Florida Statutes § 366.02 expressly does not include a cooperative organized under the Rural Electric Cooperative Law, or a municipality or any agency of one.¹ That single exclusion is the reason Florida’s solar rules are not uniform.

Florida Statutes § 366.91 makes the split explicit. It directs each public utility to develop a standardized interconnection agreement and net-metering program, and gives the Commission the authority to establish those requirements. It then places the same obligation on municipal electric utilities and rural electric cooperatives, with each governing authority establishing its own requirements.²

The Florida Public Service Commission publishes the electric tariffs of the investor-owned electric companies under its jurisdiction. As of our most recent check, that list names Florida Power & Light Company, Duke Energy Florida, Tampa Electric Company, and Florida Public Utilities Company.³

If one of those four serves your home, the statewide Commission rule on interconnection and metering of customer-owned renewable generation is the framework your installer is working inside.⁴ If a city utility or a cooperative serves your home, that rule is not the framework, and the right source of truth is your utility’s own published program.⁵

We publish utility-specific orientations as we can verify them against primary documents. The first is our Tampa Electric (TECO) solar guide. For homeowners looking at FPL’s subscription program rather than rooftop equipment, see FPL SolarTogether explained.

“Utility rules” sounds abstract until you see the list of decisions it covers:

• The interconnection application itself: which agreement applies to your system size, what documentation is required, and what it costs to apply.
• Equipment and safety expectations, including metering and, in many cases, a manual disconnect switch the utility can access.
• Inspection and approval sequencing between your local building department and the utility, and when you are permitted to operate in parallel with the grid.
• How your bill is calculated afterward, including the fixed charges that continue regardless of how much your system produces.
• How surplus production is treated, which is a program-level question we cover separately in net metering in Florida.

• Open your most recent electric bill and read the name of the company at the top. That is your utility, and it is the only one whose rules apply to your home.
• Decide which category it falls into: one of the investor-owned companies whose tariffs the Commission publishes, a city utility, or a cooperative.
• Go to that utility’s own solar or interconnection page and read the current requirements there, rather than relying on a summary — including ours.
• Note the fixed charges on your bill. Those are the amounts least affected by production, and they belong in any honest savings conversation. See what your electric bill looks like after solar.