Duke Energy Florida highlights record-low outage time for customers in 2025

Duke Energy Florida (DUK) reported a record-low average outage duration of approximately 64 minutes per customer in 2025, excluding major named storms.

Rhea-AI Summary

Duke Energy Florida (DUK) reported a record-low average outage duration of approximately 64 minutes per customer in 2025, excluding major named storms. The company attributes the improvement to year-round grid hardening: pole upgrades, undergrounding, and smart self-healing technology.

Key metrics: ~60% of transmission poles upgraded over five years (target completion 2028), ~50% of distribution underground, and ~82% of customers served by self-healing systems, which helped avoid ~280,000 extended outages in 2025 and saved millions of outage hours during 2024 hurricanes.

Positive

• Average outage duration fell to 64 minutes in 2025
• 60% of transmission poles upgraded over the last five years
• 82% of customers served by smart self-healing technology
• Self-healing tech avoided approximately 280,000 extended outages in 2025
• Saved 3.3M, 1.8M, and 208K outage hours in 2024 hurricanes Milton, Helene, and Debby

Negative

• Approximately 40% of transmission poles remain to be upgraded by 2028
• Roughly 50% of distribution system remains overhead, exposed to storm damage

Argus Mar 3 session

-0.15% close to close Open Argus

Details

News Market Reaction – DUK

In the Mar 3 session, DUK declined 0.15%, reflecting a mild negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights a record-low 2025 average outage duration of about 64 minutes per custo...

Analysis

This announcement highlights a record-low 2025 average outage duration of about 64 minutes per customer for Duke Energy Florida, driven by grid hardening, undergrounding and self-healing technologies that now serve roughly 82% of more than 2 million customers. In context with recent nuclear fleet reliability records and customer-support initiatives, it underscores a consistent focus on resilience. Investors may watch how continued reliability gains interact with long-term capital plans and regulatory outcomes.

Key Figures

Average outage duration: 64 minutes Transmission poles upgraded: 60% Underground distribution: 50% +5 more

Average outage duration

64 minutes

2025 average outage duration per customer, excluding major storms

Transmission poles upgraded

60%

Share of transmission poles upgraded over last five years

Underground distribution

50%

Portion of Duke Energy Florida distribution system underground

Self-healing coverage

82%

Share of >2 million Florida customers served by self-healing technology

Extended outages avoided

280,000

Number of extended outages avoided in 2025 via self-healing tech

Hurricane Milton hours saved

3.3 million hours

Customer outage hours avoided during 2024 Hurricane Milton

Florida capacity

12,300 megawatts

Duke Energy Florida owned generation capacity

Florida customers served

2 million

Residential, commercial and industrial customers in Florida

Historical Context

5 past events · Latest: Feb 23

5 events

1. Feb 23

   Environmental funding

   24h Move

   +0.8%

   Foundation committed $500,000 to environmental resilience projects in North Carolina.

2. Feb 20

   Nuclear performance

   24h Move

   +0.3%

   Nuclear fleet set reliability record with 96.9% capacity factor and tax credits.

3. Feb 18

   Dividend milestone

   24h Move

   -1.2%

   Company marked 100 consecutive years of quarterly cash dividends.

4. Feb 13

   Customer assistance

   24h Move

   +1.7%

   Offered bill help and fraud guidance after Florida cold snap with bill reductions.

5. Feb 12

   AI scam protection

   24h Move

   +0.7%

   Deployed AI to detect and remove scams targeting energy customers online.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

grid hardening, undergrounding, self-healing technology, megawatts

4 terms

grid hardening technical

""Grid hardening" defined: Strategic infrastructure investments allow Duke Energy Florida..."

Grid hardening is the process of strengthening the electrical power system to reduce outages and speed recovery from storms, equipment failures, cyberattacks, or other disruptions. It includes physical upgrades (like stronger poles or underground lines), backup power and batteries, and improved control systems—think of it as fortifying a house against floods, wind, and break-ins. For investors, grid hardening can lower the risk of costly outages, stabilize utility revenues, and create demand for infrastructure, storage, and engineering services.

undergrounding technical

"Undergrounding: Where fallen tree limbs or branches cause repeated power outages..."

Undergrounding is the process of moving overhead infrastructure—like power lines, phone cables or pipelines—beneath the ground instead of leaving them on poles or exposed. For investors, it matters because it typically involves significant upfront cost, regulatory approvals and construction risk, while promising lower maintenance, fewer weather-related outages and potential increases in property values or project reliability over time.

self-healing technology technical

"Smart, self-healing technology: Similar to a GPS, when this technology is implemented..."

Self-healing technology is material or system design that can automatically repair damage—like cracks in a surface, broken circuits, or software bugs—without human intervention. For investors it matters because products that fix themselves can lower repair and warranty costs, extend useful life, and boost reliability, similar to a car that patches its own tire, which can translate into stronger margins, steadier revenue and a competitive edge in markets that value durability.

megawatts technical

"Duke Energy Florida... owns 12,300 megawatts of energy capacity..."

A megawatt is a measure of electrical power equal to one million watts, describing how much electricity a plant or device can generate or use at a single moment. Investors use megawatts to compare the size and earning potential of energy projects—larger capacity usually means more electricity to sell—much like comparing the horsepower of engines to judge how much work they can do. Knowing megawatts helps assess scale, revenue potential, and grid impact of energy assets.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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ST. PETERSBURG, Fla., March 3, 2026 /PRNewswire/ -- In 2025, Duke Energy Florida achieved the lowest average outage duration per customer in more than two decades. At approximately 64 minutes, this record metric – which excludes outage time caused by significant events like named storms – can be attributed, largely, to year-round grid hardening efforts across the state.  

"Grid hardening" defined: Strategic infrastructure investments allow Duke Energy Florida to continue providing safe, reliable service for customers on "blue-sky" days and in extreme weather conditions, be it an afternoon thunderstorm or a hurricane.

Preparation in action: All year long, Duke Energy Florida's engineers, arborists, construction workers and more collaborate on projects that will strengthen the system and make it more resilient.

• Pole upgrades: Wooden power poles are upgraded to better withstand high winds and are often replaced with concrete or steel.
  
  
  • Approximately 60% of the company's transmission poles were upgraded over the last five years, with a completion target of 2028.
• Undergrounding: Where fallen tree limbs or branches cause repeated power outages, or where equipment is difficult to access (like in customers' backyards), overhead power lines are placed underground, better protecting them from the elements and making them easier to get to if outages do occur.
  
  
  • Approximately 50% of the company's distribution system is underground.
• Smart, self-healing technology: Similar to a GPS, when this technology is implemented, outages are automatically detected and power is rerouted to other lines, allowing service to be restored faster (often in less than a minute) or even avoiding outages altogether.
  
  
  • Approximately 82% of the company's more than 2 million customers are served by this technology.
    
    
  • In 2025 alone, it helped avoid approximately 280,000 extended outages for customers.
    
    
  • It also saved millions of hours of outages during the 2024 hurricane season:
    
    
    • 3.3 million hours during Hurricane Milton
      
      
    • 1.8 million hours during Hurricane Helene
      
      
    • 208,000 hours during Hurricane Debby

Our view:

"Thankfully, Mother Nature spared us last year, but living in Florida, we know it's not a matter of 'if' but 'when' the next storm is coming," said Melissa Seixas, Duke Energy Florida state president. "This work is designed to significantly improve reliability and help keep the lights on for our customers when they need it most."

Duke Energy Florida
Duke Energy Florida, a subsidiary of Duke Energy, owns 12,300 megawatts of energy capacity, supplying electricity to 2 million residential, commercial and industrial customers across a 13,000-square-mile service area in Florida. 

Duke Energy 
Duke Energy (NYSE: DUK), a Fortune 150 company headquartered in Charlotte, N.C., is one of America's largest energy holding companies. The company's electric utilities serve 8.4 million customers in North Carolina, South Carolina, Florida, Indiana, Ohio and Kentucky, and collectively own 54,800 megawatts of energy capacity. Its natural gas utilities serve 1.7 million customers in North Carolina, South Carolina, Tennessee, Ohio and Kentucky. 

Duke Energy is executing an ambitious energy transition, keeping customer reliability and value at the forefront as it builds a smarter energy future. The company is investing in major electric grid upgrades and cleaner generation, including natural gas, nuclear, renewables and energy storage. 

More information is available at duke-energy.com and the Duke Energy News Center. Follow Duke Energy on X, LinkedIn, Instagram and Facebook, and visit illumination for stories about the people and innovations powering our energy transition. 

Contact: Aly Raschid
24-Hour: 800.559.3853
X: @DE_AlyRaschid

View original content to download multimedia:https://www.prnewswire.com/news-releases/duke-energy-florida-highlights-record-low-outage-time-for-customers-in-2025-302702836.html

SOURCE Duke Energy

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What was Duke Energy Florida's reported average outage time in 2025 for customers (DUK)?

The average outage duration was approximately 64 minutes in 2025. According to the company, this metric excludes outage time from major named storms and reflects year-round grid hardening efforts.

How much of Duke Energy Florida's transmission pole network has been upgraded through 2025 (DUK)?

About 60% of transmission poles were upgraded over the last five years. According to the company, the program targets completion of remaining upgrades by 2028.

What percentage of Duke Energy Florida customers are served by smart self-healing technology (DUK)?

Approximately 82% of customers are served by self-healing systems. According to the company, this tech reroutes power automatically and helped avoid outages and speed restorations in 2025.

How many extended outages did self-healing technology help avoid in 2025 for Duke Energy Florida (DUK)?

Self-healing systems helped avoid roughly 280,000 extended outages in 2025. According to the company, that contributed materially to the record-low average outage duration.

How many outage hours did Duke Energy Florida's investments save during 2024 hurricanes (DUK)?

Investments saved millions of outage hours: 3.3M hours in Hurricane Milton, 1.8M in Hurricane Helene, and 208K in Hurricane Debby, according to the company.

How large is Duke Energy Florida's customer and capacity footprint as reported in the March 3, 2026 announcement (DUK)?

Duke Energy Florida serves about 2 million customers and owns 12,300 megawatts of capacity. According to the company, its service area covers roughly 13,000 square miles in Florida.