What Duke Energy Florida customers need to know as summer heat peaks in August

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Duke Energy (NYSE: DUK), through Duke Energy Florida, is advising customers on coping with August’s peak heat, noting recent summers have been 10%-15% hotter than long-term averages and that AC systems work harder as humidity rises. The company highlights lineworkers’ safety-focused efforts to maintain and strengthen the grid for more than 2 million Florida customers.

According to Duke Energy Florida, customers can lower usage by adjusting thermostats, cleaning air filters and using ceiling fans. Digital Usage Alert emails provide mid-month projections of energy use and bills. Free Home Energy Checks can be associated with up to $3,800 in improvement rebates, and the EnergyWise Home program offers monthly bill credits.

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ST. PETERSBURG, Fla., Aug. 5, 2026 /PRNewswire/ -- Recent summers have been 10% to 15% hotter than the long-term average, and August is historically when temperatures peak in Florida. As humidity also rises across the state, AC systems are working harder and using more energy to keep up. In fact, roughly 30% of a single unit's output can go toward removing moisture.

With the hottest month of the year underway, Duke Energy Florida is offering important reminders about what it takes to keep the power flowing, as well as energy efficiency resources to help its more than 2 million customers save money.

Reliable lineworkers, reliable power

• Lineworkers show up every single day. These men and women brave the extreme heat to maintain and strengthen the electric grid, powering customers' lives – and helping keep AC systems running – when they need it most.
• Safety is their top priority as they work to keep customers cool and comfortable. They follow strict protocols, including rotating crew members during strenuous tasks, working during cooler hours of the day, if possible, and taking mandatory hydration breaks.

Tips and tools to take control

• There are simple, low- or no-cost solutions to lower energy use. These include adjusting the thermostat to the highest comfortable setting, keeping air filters clean and running a ceiling fan counterclockwise to push cool air down.
• Mid-month reports make it easy to monitor progress. Usage Alert emails show how much energy has been used so far, as well as projected usage for the rest of month and an estimated payment amount, allowing adjustments to be made before the bill arrives.
• Energy efficiency programs can create even more savings. From free Home Energy Checks (associated with up to $3,800 in rebates on home improvement projects) to the EnergyWise Home program, which offers monthly bill credits, there are several options available. 

Download B-roll of energy efficiency resources, including a Home Energy Check, here and here.

Our view

"Many of our customers are already feeling the impact of the extreme summer heat," said Melissa Seixas, Duke Energy Florida state president. "We want them to know we're committed to supporting them. Whether that's by providing service they can consistently count on, or through our many programs intended to give them control of their energy use and keep their costs as low as possible – we're here to help."

Duke Energy Florida
Duke Energy Florida, a subsidiary of Duke Energy, owns 12,500 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 8.7 million customers in North Carolina, South Carolina, Florida, Indiana, Ohio and Kentucky, and collectively own 55,700 megawatts of energy capacity. Its natural gas utilities serve 1.6 million customers in North Carolina, South Carolina, Ohio and Kentucky.

Duke Energy is executing an energy modernization strategy, keeping customer value at the forefront as it invests in electric grid upgrades and efficient generation resources to strengthen the system and serve growing energy needs.

More information is available at duke-energy.com. Follow Duke Energy on X, LinkedIn, Instagram, TikTok and Facebook for stories about the people and innovations powering its communities.

Contact: Laitin Sterling
24-Hour: 800.559.3853

 

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SOURCE Duke Energy

FAQ

What is Duke Energy Florida (DUK) telling customers about August heat in 2026?

Duke Energy Florida is warning that August is historically Florida’s hottest month and recent summers are 10%-15% hotter. According to Duke Energy, higher heat and humidity make AC systems work harder, so the company is emphasizing reliability efforts and promoting energy-saving programs to help manage bills.

How can Duke Energy Florida (DUK) customers reduce summer energy bills during peak heat?

Customers can lower bills by raising thermostats to the highest comfortable setting, keeping air filters clean and running ceiling fans counterclockwise. According to Duke Energy Florida, combining these steps with its energy efficiency programs can help reduce overall energy use and better control monthly electricity costs.

What is the Duke Energy Florida Home Energy Check program and how much can customers save?

Home Energy Checks are free evaluations that identify efficiency improvements in customers’ homes. According to Duke Energy Florida, these checks can be associated with up to $3,800 in rebates on qualifying home improvement projects, helping customers reduce energy consumption and potentially lower long-term electricity expenses.

How do Duke Energy Florida Usage Alerts help DUK customers manage their energy bills?

Usage Alert emails show energy used so far in the billing period, projected usage for the month and an estimated bill amount. According to Duke Energy Florida, this mid-month information lets customers adjust consumption before the bill arrives, improving budgeting and cost control during hot summer periods.

What is the Duke Energy Florida EnergyWise Home program and what benefits does it offer?

EnergyWise Home is an energy efficiency program that provides monthly bill credits to participating customers. According to Duke Energy Florida, the program helps manage energy use by allowing the company to make limited adjustments to enrolled equipment, supporting grid reliability while offering direct savings on customer bills.

How many customers does Duke Energy Florida serve and what is its power capacity?

Duke Energy Florida supplies electricity to about 2 million residential, commercial and industrial customers. According to Duke Energy Florida, it owns 12,500 megawatts of energy capacity across a 13,000-square-mile service area, forming a key part of parent company Duke Energy’s broader utility operations.

How large is Duke Energy (DUK) overall and where does it operate?

Duke Energy is a Fortune 150 energy holding company serving 8.7 million electric customers in six states. According to Duke Energy, its utilities collectively own 55,700 megawatts of capacity and its natural gas operations serve 1.6 million customers in North Carolina, South Carolina, Ohio and Kentucky.