Going Solar in Florida: Big Sun, Weak Exports, Hurricane Rules

The Sunshine State should be the easiest solar sale in America, and on the production side it genuinely is: most Florida roofs see the equivalent of 4.7 to 5.5 peak sun hours a day, competitive with Texas and not far behind Southern California. But solar economics don’t run on sunshine alone. They run on three inputs multiplied together — how much sun you get, what you pay for grid electricity, and how your utility credits the power you export — and Florida is only elite on the first of the three. Stack the strictest residential wind-engineering requirements in the country on top of that, and Florida solar turns into a market where the fine print decides the outcome and the brochure tells you almost nothing useful.

None of that makes Florida a bad place to go solar. It makes it a place where the difference between a good deal and a mediocre one comes down to a handful of details most buyers never think to check. Here’s how the state’s math actually shakes out, and where it diverges from the states Florida usually gets compared to.

Sun, rates, exports, and storms: what really drives Florida’s math

Start with production, because it’s the part Florida delivers on. A well-oriented Florida array produces a lot of energy — figure roughly 1,400 to 1,600 kWh per year for every kW of panels you install, as a planning range. The asterisk is heat and humidity, which are the tax Florida charges for its latitude. Panels lose efficiency as their cell temperature climbs, and a 95°F afternoon with thick humidity trims peak output in precisely the season Floridians are running their air conditioning hardest. Afternoon thunderstorm season, roughly June through September, knocks down what would otherwise be the brightest months of the year, clouding over the sky most days right when the sun is highest. The net effect is that Florida’s production curve is flatter across the year than a northern state’s — the winters are surprisingly decent and the summers are good rather than spectacular — and that flatness happens to pair well with a home that runs the AC eight or nine months a year. You lose a little off the summer peak, but you keep producing usefully in January when a Minnesota array is buried and idle.

The second lever is the retail rate, and this is where Florida quietly parts ways with the states it’s often mentioned alongside. Solar savings are always denominated in the rate you avoid paying, and Florida’s residential rates have generally sat near or somewhat above the national average — nothing remotely like California’s, which can run roughly double. That single fact means the same kilowatt-hour of solar production is simply worth less in Tampa than in San Diego, because the grid electricity it displaces is cheaper. A Floridian and a Californian can install identical systems producing identical energy and see very different dollar savings, purely because of what their utilities charge. Cheaper power is lovely to have and frustrating to go solar against, and it’s the main reason Florida paybacks don’t match California’s despite Florida’s better weather.

Two things push back in Florida’s favor and keep the math attractive anyway. The first is that consumption is high: heavy year-round air conditioning means a lot of Florida homes buy 1,200 to 1,800 or more kilowatt-hours in a summer month, so even at middling rates there’s a large bill sitting there to be offset, and a big bill is what makes a big system worthwhile. The second is that installed prices in Florida have historically run below the national average. A competitive installer market, a long building season, and a lot of simple single-story roofs with straightforward layouts all hold costs down, so the same system that’s expensive to install in the Northeast is often cheaper in Florida. Put those together — cheaper systems offsetting large bills at moderate rates — and Florida paybacks tend to land in the medium range nationally: worse than California, broadly comparable to Texas, and far better than the low-rate, low-sun states where solar barely pencils out. If you want to see how those three levers interact across the whole country rather than just one state, why solar pays off in some states and barely breaks even in others lays out the general framework, and Florida is a textbook case of a state that’s strong on one lever and merely average on the others. To put real numbers against your own roof and bills, the solar panel cost calculator is the place to start, using a Florida-appropriate per-watt price and your actual summer usage rather than a national default.

The single most important thing to nail down before signing a Florida contract is the export tariff, because it’s both decisive and in motion. Florida has historically required investor-owned utilities to credit rooftop-solar exports at or near the full retail rate — classic net metering — and that policy has been the backbone of the state’s residential solar economics for years. It has also been the subject of repeated legislative and regulatory fights, and the direction of pressure has consistently been toward reducing export compensation over time rather than expanding it. On top of that, municipal utilities and rural electric co-ops, which together serve a large share of Florida households, set their own export policies independently and vary enormously from one to the next. The upshot is that no article can tell you your export rate; only your specific utility can. What survives any policy change is the checklist. Get your utility’s current export tariff in writing before you sign anything, and specifically ask whether existing customers are grandfathered under the old terms if the rules change, since grandfathering is often the difference between a stable twenty-year deal and one that gets worse in year three. Ask what happens to your credits at the end of the year, because some utilities cash out an annual surplus at a much lower avoided-cost rate, which quietly penalizes oversizing. And if export credits are weak or clearly trending down, size the system for self-consumption rather than for maximum production — a system that covers your daytime AC load and exports little is insulated from export-rate changes, while an oversized system betting on generous exports is exposed to every regulatory decision that comes down the pike. That defensive posture is exactly what California owners adopted after that state’s net metering shake-up, and the useful thing for Florida buyers is that they can learn it in advance instead of the hard way. It’s also the point at which batteries stop being purely a hurricane-backup story and start earning their keep on bill savings — though most Florida solar pitches now lead with batteries regardless of whether your rate structure justifies one, so run those numbers before you accept the framing.

The other thing that makes Florida its own market is that the building code treats a rooftop array as a wind-load problem, and the requirements scale with where you live. Most of the state demands attachments engineered for design wind speeds in the 130 to 160 mph range, and the High-Velocity Hurricane Zone covering Miami-Dade and Broward counties imposes the strictest product approvals and testing found anywhere in the country. In practice that reshapes your purchase in ways worth understanding rather than being surprised by. Engineering and permitting are simply not optional: every legitimate Florida install includes site-specific structural calculations signed off for your wind zone, and a quote that has no engineering line items is a red flag rather than a bargain, because the engineering is the part actually keeping the array on your roof in a storm. Florida arrays also use denser mounting patterns and heavier racking hardware than a comparable array in Georgia would need — more attachment points, stronger rails — which adds modest cost and is precisely where the real storm resistance lives. Your roof itself has to be worth attaching to, and reputable installers will decline to mount panels on aging shingles; if your roof has less than eight to ten years of life left, re-roofing first is standard advice, because pulling an array and reinstalling it mid-life to replace the roof underneath costs thousands. And the marketing phrase “hurricane-rated panels” is mostly a racking story dressed up as a panel story. Panel glass is impact-tested, but the failures that actually matter in a hurricane are attachment failures, not shattered glass, so when a salesperson leans on the phrase, steer the conversation to the racking spec, the attachment schedule, and the signed engineering letter. Worth knowing for peace of mind: modern, properly engineered arrays have generally held up well in recent Florida hurricanes, and the panels add negligible wind risk to a structurally sound roof. It’s also worth confirming that your homeowner’s insurance treats the array as part of the dwelling and checking whether your premium moves, because insurers vary and Florida’s insurance market is an adventure of its own.

Incentives and how the numbers come together

Florida’s incentive picture is simpler than California’s, mostly because there’s less of it, and the simplicity is easy to explain. The state has no income tax, so there is no state solar tax credit to stack on top of the federal one — the thing that does a lot of heavy lifting elsewhere just doesn’t exist here. What Florida has offered instead is a pair of exemptions worth confirming as you buy: a sales-tax exemption on solar equipment, which trims the up-front cost, and a property-tax exclusion for the added home value a residential system creates, so that going solar raises your home’s value without raising your property tax bill. Both are genuinely valuable and both are the kind of thing that can change, so verify they’re still in effect at the time of your purchase rather than assuming. The dominant incentive in any Florida solar purchase, though, is the 30% federal Residential Clean Energy Credit, which applies in Florida exactly as it does everywhere else. On a typical residential system it’s worth several thousand dollars, it can cover battery storage as well as panels, and it’s the single largest number moving your net cost. It’s a credit against your federal tax liability rather than a rebate you receive at purchase, which is worth understanding before you count it in a payback estimate, but for most Florida buyers it’s the difference between a good deal and a marginal one.

Pull it all together with a worked example, assumptions labeled so you can swap in your own. Take a Central Florida home averaging 1,500 kWh a month and paying $0.15/kWh, quoted an 11 kW system at $2.60 per watt installed. That’s $28,600 gross, and after the 30% federal credit roughly $20,000 net. At about 1,500 kWh per year per kW of panels, the system produces around 16,500 kWh a year against the home’s 18,000 kWh of annual usage — a strong but not total offset, which is usually the economically sensible target since chasing the last slice of usage is the least productive capacity you can buy. Now watch the export tariff swing the result. If export credits run near retail, annual savings approach $2,400 and simple payback lands somewhere around eight to nine years — a solid outcome. If instead exports get credited at half of retail and a third of the system’s production is exported rather than used on-site, annual savings drop toward $2,000 and payback stretches past ten years. That’s a meaningful difference in outcome, and notice that it’s driven entirely by the tariff, not by the hardware — same panels, same sun, same roof, a different result depending on one policy number you’d have found only by asking. It’s the clearest possible argument for pinning the export rate down in writing before you commit.

Whether 11 kW is even the right size for your particular roof and usage is a separate question worth answering deliberately rather than accepting from a salesperson, since the right size in a weak-export environment is often smaller and more self-consumption-focused than the one a commissioned rep will propose. The solar panel size calculator lets you test system sizes against your actual monthly consumption instead of a template.

One more Florida-specific factor belongs in the budget, because it’s easy to overlook until it lands: the interaction between your array, your roof’s lifespan, and your insurance. Florida roofs take a beating from heat, humidity, and storms, and they get replaced more often than roofs in milder states. Install solar on a roof with only a few years of life left and you’ll eventually pay to have the array removed and reinstalled when the roof is redone — a job that commonly runs into the low thousands of dollars and delivers no extra production for the money. Sequencing the roof and the solar together, or at least starting from a roof with a decade or more left in it, avoids that entirely avoidable expense, which is exactly why reputable installers push back on mounting panels over aging shingles. Insurance is the companion issue and just as easy to skip past. Florida’s property-insurance market has been turbulent for years, premiums move, and some carriers weigh a rooftop array in their underwriting, so it’s worth a call to your insurer before you sign — to confirm the array is covered as part of the dwelling rather than excluded, and to learn whether adding it changes your premium. Neither the roof timing nor the insurance question shows up anywhere on a solar quote, yet both belong in an honest total cost of ownership for a Florida system, sitting right alongside the panels, the racking, and the engineering letter. Buyers who account for them up front are the ones who don’t get an unpleasant surprise in year six.

Florida solar, condensed to a sentence: the sun delivers, installed prices help, the export tariff is the variable to pin down in writing before anything else, and the hurricane engineering is a cost worth paying in full rather than a corner worth cutting — because the corner you cut is the one holding your array to the roof when the next storm comes through.