Florida generator guide

Are Home Standby Generators Just for Hurricanes? The Outages That Actually Run Them Most

Ask a Florida homeowner why they want a standby generator and you'll hear one word: hurricanes. But pull the actual outage data and a stranger picture shows up — of the major U.S. outages tracked from 2000 to 2023, roughly 80% were weather-related, and hurricanes and tropical storms caused only about 14% of those. The generator sitting beside your house will spend most of its working life covering outages that never make the news: an afternoon thunderstorm, a car into a pole, a squirrel on a transformer, a grid running hotter than it was built for.

Get your address-specific installed price →

About five minutes. No salesman, no all-day window.

The math nobody runs: hurricanes are a minority of the outages

Federal outage data tells a story that doesn't match the marketing. The U.S. Energy Information Administration reports that the average American electricity customer lost about 11 hours to interruptions in 2024 — the worst year in a decade, driven by hurricanes Beryl, Helene, and Milton. That's the year everyone remembers. But look at 2023, a year with no comparable hurricane landfalls, and the average customer still lost roughly six hours of power. The lights went out anyway. Just quietly.

Climate Central's analysis of major U.S. outages breaks the weather category down further: severe storms — thunderstorms, high winds, hail — caused about 58% of weather-related major outages. Winter storms caused another 23%. Tropical cyclones, the category that includes every named hurricane, accounted for about 14%. Hurricanes produce the longest single outages, which is why they dominate the coverage. But if you count the number of times the power actually goes out at your meter, the boring causes win by a wide margin, year after year.

Squirrels, trees, and a Camry into a pole: what actually trips the switch

The American Public Power Association tracks outage causes across its member utilities, and squirrels rank as the third leading cause of power outages in the country — utilities logged over 7,000 animal-related outages in 2023 alone. Trees were the single most common cause that year, with more than 8,000 incidents. Then come the causes utilities file under 'other': vehicles striking utility poles, failed transformers, aging switchgear. Equipment failure by itself accounts for roughly 9% of U.S. outages, and that share tracks the age of the hardware — much of the grid's distribution equipment is decades past its design life.

Florida adds its own layer on top of all that. FPL's own outage guidance lists the usual suspects for the state: strong winds, lightning, vegetation, animal interference, car accidents, and equipment problems. Notice what's carrying the load there — it's the daily summer pattern, not the named storm. Florida leads the nation in lightning activity, and a routine July afternoon thunderstorm can put a strike into a transformer or a gust into a tree limb and drop a neighborhood for two hours. No hurricane required. Homeowners with standby units consistently describe the same experience: the unit they bought for the big one has quietly carried them through a string of ordinary outages in between.

The grid itself is getting tighter, not looser

Here's the part that changes the calculation going forward: demand on the grid is climbing faster than it has in a generation. NERC — the body that grades grid reliability across North America — found in its 2026 Summer Reliability Assessment that projected peak demand rose more than 11 gigawatts over the prior summer's forecast, pushed by data centers, electrification, and other large new loads. Several regions were flagged at elevated risk, where operators may need conservation appeals or demand response during heat waves just to keep supply and demand balanced.

Florida's grid graded out adequate for normal conditions, but the direction of travel is the same everywhere: more load, tighter margins, less slack for the unexpected. A strained grid doesn't fail dramatically — it fails in small, local, frequent ways, especially on the hottest afternoons when every air conditioner in the state is running. Those are exactly the outages a standby generator handles without you doing anything. It senses the loss, starts itself, transfers your panel in seconds, and shuts back down when utility power returns — whether the cause was a Category 4 or a substation breaker that gave up on a Tuesday.

What this means when you price one for your house

If a standby generator only mattered during hurricanes, you could argue it's insurance you might use once a decade. The data says otherwise: it's a machine that will likely run several times a year, every year, for causes as unglamorous as a squirrel and as structural as a grid running near its ceiling. That reframes the question from 'what if a hurricane hits' to 'how often am I willing to lose the house's power at all.'

The pricing side is where most homeowners get stuck, because the industry loves ranges — 'anywhere from ten to twenty thousand depending on your home.' GENERasic doesn't do that. Using your address, your home's records, and photos of your panel, fuel supply, and site, GENERasic works out what your specific installation actually requires — generator size, transfer switch, fuel connection, pad, permits — and gives you one committed installed price for your home. Not a starting-at number, not an estimate that grows on install day. One number, for your address, that the job is done at. If you've been waiting for hurricane season to think about backup power, the outage data suggests you've been waiting on the wrong storm — get your committed price and stop losing power to squirrels.

Common questions

How long can one of these actually run nonstop during a long outage?

Longer than most people expect. In comments from homeowners who rode out Helene and Milton, real-world numbers included 69 hours straight, 82 hours, and 4.5 days of continuous runtime on air-cooled residential units from Generac and Kohler. On multi-day runs it's smart to pause briefly to check the oil, and units on propane sometimes cycle off overnight to stretch fuel. For the far more common two-to-six-hour outage, continuous runtime isn't even a question.

I don't have natural gas at my house — how much propane do I need?

A buried or above-ground propane tank does the job, and consumption is lower than people fear because the generator only runs during outages plus a short weekly self-test. One homeowner running a 20kW unit off a 500-gallon tank — including multi-day storm outages — didn't need a refill for two and a half years, and the tank was still at 30% when they topped it off. Sizing the tank correctly for your generator and outage history is part of what a proper site assessment should cover.

Do these things actually start when you need them, or do they fail at the worst moment?

The design answer is the weekly self-test: the unit starts itself every week for about 15–20 minutes, so a problem shows up on a calm Thursday instead of during a storm. The honest-to-the-data answer is that failures do happen — a known run of units built mid-2021 through 2023 had brush and rotor problems, and homeowner videos about failures are easy to find. But a technician who has been involved in a couple hundred installs put the failure rate under 1% for units that were correctly installed and properly serviced. Installation quality and maintenance are the difference, which is exactly why who installs it matters as much as the badge on the cabinet.

How much maintenance does a standby generator really need?

Roughly what a car needs, on a slower schedule. The unit exercises itself weekly on its own. Beyond that, plan on annual service — oil, spark plugs, air filter — plus an oil check during any extended multi-day run. Homeowners who keep that schedule report units still running reliably at 6, 13, even 14 years old. The pattern in the failure stories is almost always the reverse: skipped service, then a storm.

Wouldn't a portable generator or battery-backed solar be good enough?

For some homes, yes — but understand what you're trading. A portable means dragging it out, fueling it, and running cords in exactly the weather that caused the outage, and most portables can't carry central air conditioning through a Florida August. Batteries are silent and clean but are sized in hours, not days — a multi-day outage outlasts most residential battery banks, while a standby unit on natural gas or a properly sized propane tank keeps running. The standby's real advantage is that it works when you're not home: it starts itself, so the fridge, the AC, and a medical device don't wait for you to get back.

Stop reading ranges. Get your number.

GENERasic pulls the real property, flood, and elevation data for your exact address and returns one all-in installed price — sized to your home, your fuel, and your flood elevation. The vetted local installer confirms it on site.

Get your installed price →