Quick answer
Since 2016, Hurricane Irma caused Florida's biggest blackout: 6.7 million accounts, 64% of the state, lost power, and FPL took 10 days to restore all 4.4 million of its affected customers. Ian took FPL 8 days in 2022 and Milton about 5 days in 2024. Most FPL homes get power back in a day or two; the last ones can wait a week or more.
How long do power outages last after a Florida hurricane?
| Storm | FPL customers affected | FPL restoration |
|---|---|---|
| Matthew (Oct. 2016) | 1.2 million outages | 98% within 3 days |
| Irma (Sept. 2017) | 4.4 million | Essentially all in 10 days |
| Ian (Sept. 2022) | More than 2.1 million | Essentially all in 8 days |
| Nicole (Nov. 2022) | About 341,000 | Essentially all within 24 hours |
| Debby (Aug. 2024) | More than 250,000 | Essentially all within days |
| Helene (Sept. 2024) | More than 680,000 | 99.7% restored |
| Milton (Oct. 2024) | More than 2 million | About 5 days |
| Isaias (Oct. 2026) | About 435,000 (Northwest Florida) | More than 95% within 4 days |
Most customers get power back within a day or two. The long tail is what hurts: a week after Ian, FPL still had about 91,000 customers out, mostly in Charlotte, Sarasota and Lee counties.
Which hurricane caused Florida's biggest power outage?
Irma, in September 2017. It knocked out power to 6.7 million electricity customers, 64% of all accounts in Florida, with outages peaking the afternoon after landfall, according to the U.S. Energy Information Administration. FPL called it the largest number of outages in its history and finished restoring its 4.4 million affected customers 10 days after the storm left.
Milton in 2024 came next among recent storms, with more than 3.3 million Florida customers out.
What happened in each storm since 2016?
- Matthew (October 2016): moved up the east coast and caused nearly 1 million Florida outages, about 10% of customers. FPL restored 98% of its 1.2 million outages less than three days after the storm passed.
- Irma (September 2017): the statewide record above. FPL restored more than 2.7 million customers in the first 48 hours.
- Michael (October 2018): hit the Panhandle, then served by Gulf Power, which is now part of FPL. Gulf Power said some customers might wait until October 24, about two weeks, for power.
- Ian (September 2022): struck Southwest Florida. FPL restored more than 2.1 million customers in 8 days.
- Nicole (November 2022): FPL restored more than 95% of affected customers within 12 hours of the storm leaving, and essentially all within 24.
- Idalia (August 2023): mostly hit areas outside FPL's. About 545,000 Florida accounts lost power, and 96% were back by September 4.
- Debby and Helene (August and September 2024): FPL restored more than 250,000 customers after Debby and more than 680,000 after Helene.
- Milton (October 2024): more than 3.3 million Florida customers out; FPL restored more than 2 million in about 5 days.
- 2025: no named storm made landfall in Florida.
- Isaias (October 2026): a Category 2 landfall near Destin. About 448,000 Florida accounts were out the next morning, by the governor's count; FPL restored more than 95% of its 435,000 affected customers within four days.
Is FPL's grid getting better at storms?
FPL says so. It says smart grid equipment avoided about 824,000 customer outages across Debby, Helene and Milton in 2024, and that its underground neighborhood lines performed far better than overhead ones. Restoration has also gotten faster: Nicole in 2022 took under a day, where Irma took 10.
But hardening doesn't stop the biggest storms: Milton still knocked out millions. Underground lines can also fail when they flood. See FPL underground power lines and batteries.
Do hurricanes raise FPL bills afterward?
Usually, through a temporary storm surcharge that covers restoration costs.
- Irma: about $1.3 billion, which FPL covered with federal tax savings instead of a surcharge.
- Ian and Nicole: $15.30 per 1,000 kWh starting in April 2023, later reduced to $6.65.
- Debby, Helene and Milton: about $12 a month on a typical 1,000 kWh bill through 2025.
- Isaias (2026): FPL has asked for $3.48 a month in 2027, pending Public Service Commission approval.
Solar doesn't remove surcharges billed per kWh, but every kWh your panels supply is one you don't buy at that rate. See why your FPL bill is so high.
How do you keep your power on through a hurricane outage?
Rooftop solar alone shuts off when the grid goes down, so line crews aren't hurt. Add a home battery and the system isolates from the grid and keeps your essentials, or your whole home, running, and the panels recharge the battery each sunny day of a long outage. See why solar panels don't work in a power outage, solar battery backup for hurricanes and generator vs. solar battery.
See what solar and a battery would cost for your home with the solar savings calculator.
Sources
- FPL newsroom: FPL working to restore remaining customers after Hurricane Matthew (Oct. 10, 2016)
- EIA: Hurricane Matthew caused outages for over 2 million customers (Oct. 2016)
- NextEra newsroom: FPL completes restoration to more than 4.4 million customers after Irma (Sept. 22, 2017)
- EIA: Hurricane Irma cut power to nearly two-thirds of Florida's electricity customers (Sept. 2017)
- EIA: Hurricane Michael caused outages for up to 1.7 million customers (Oct. 2018)
- T&D World: FPL essentially completes restoration to more than 2.1 million customers after Ian (Oct. 2022)
- FPL newsroom: FPL essentially completes restoration after Hurricane Nicole in under 24 hours (Nov. 2022)
- S&P Global: Nicole cuts power to more than 363,000 in Florida (Nov. 2022)
- Florida Governor's office: Hurricane Idalia restoration update (Sept. 2023)
- FPL newsroom: FPL essentially completes restoration after Hurricane Debby (Aug. 2024)
- FPL newsroom: 99.7% of customers restored following Helene (Oct. 2024)
- American Public Power Association: Hurricane Milton knocks out power to more than 3 million customers in Florida (Oct. 2024)
- FPL newsroom: FPL essentially completes restoration following Hurricane Milton (Oct. 2024)
- WUSF: Florida utilities preparing despite below-normal hurricane forecast (Apr. 2026)
- National Hurricane Center: Hurricane Isaias update (Oct. 10, 2026)
- FPL: FPL essentially completes Hurricane Isaias restoration (Oct. 2026)
- WEAR: DeSantis addresses Isaias damage as Panhandle wakes to outages (Oct. 2026)
- FPL newsroom: Storm-resilient grid prevents more than 800,000 outages in 2024 season
- NextEra: FPL to use federal tax savings toward Hurricane Irma costs (Jan. 2018)
- Florida PSC: Order on FPL's Ian and Nicole storm cost recovery (2023)
- NBC Miami: FPL customers to pay about $12 more a month in 2025 for hurricane costs
- FPL: 2027 residential bills projected lower than expected (Oct. 2026)
- CBS Miami: FPL proposes smaller-than-expected 2027 bill increase despite Hurricane Isaias costs (Oct. 2026)
- FPL: Storm Secure Underground Program and FAQs
This guide is general information, not tax, legal or financial advice. Incentive programs change, so confirm current terms with your installer, your utility and a tax professional.
