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Robotics competition excites future engineers, computer scientists and other high-tech professionals

For the second year in a row, I’ve had the pleasure of supporting the FIRST Robotics South Florida Regionals Competition, an incredible combination of hard work and pure fun. You may wonder what a high school robotics competition has to do with maintaining Florida Power & Light Company’s current fleet of modern fuel-efficient power plants. […]


Together, we're always ready when you need us most

On the ten-year anniversary of Hurricanes Charley, Jeanne and Frances, our Vice President & Chief Communications Officer, Rob Gould, shares his thoughts on what we’ve learned during the past ten years and how our new partnership with the Florida National Guard is one way we’re doing our part to be ready when the next major […]


2014 Power to Care Makes A Difference Across the State

There’s nothing like helping someone else. Studies show that the more people volunteer, the happier they are. It connects you to others, it’s good for your mind and body, it’s fun! This past week, more than 1,300 NextEra Energy employees and their families in Florida were able to get out and do something nice for our […]


Boys and Girls Clubs of Miami-Dade & FPL Team Up

One of the hardest things families face today is balancing the responsibilities of work with raising kids in an environment that will allow them to reach their potential. This is where Boys & Girls Clubs come into play. Our job is to help young people, especially those living in tough environments, to develop into productive, […]


Ensuring Reliability

Getting your life back to normal faster after a storm

As president of Florida Power & Light Company, Eric Silagy leads the thousands of employees who bring affordable, reliable power to you every day. He’s raising his family here in the sunshine state, something that fuels his drive to always look for ways to make tomorrow better for all of us. If you’ve experienced a […]


Old Poles Have New Life as Artificial Reefs

If you’re a local diver, angler and anyone who loves the ocean, I’ve got good news. You can now enjoy two new artificial reefs that were created using a donation of concrete FPL poles, right off the coast of St. Lucie County. Consider it  a new take on recycling! One of the things I love […]


Restoring power -- anytime, anywhere

From time to time, you may see an FPL truck parked near your home late at night, possibly even when your power is working just fine. Don’t be alarmed. Our crews work around the clock to restore power, and they may need to work on equipment located near you to resolve an outage in your […]


Energy Efficiency

Students see solar energy in action

Schools across Florida are using our state’s sunshine to help power classrooms and teach kids about clean energy. Through FPL’s Solar Pilot Program, nearly 100 schools and other educational facilities will be getting special solar-panel displays by the end of 2014. While installing solar panels can be out of reach for many Floridians, these facilities […]


Craig Muccio

About "Ask the Energy Expert"

Craig Muccio runs FPL's Conservation Research & Development Program and crunches the numbers to figure out how you can save by managing your energy use.

Your questions on energy-related topics can be submitted anytime to our Ask the Energy Expert blog. Just click here to submit your question, and if chosen, it will be answered here

What causes higher summer bills?

By Craig Muccio

Asked on: June 24, 2014 by Peter L. from North Miami Beach

My bill was much higher compared to last month, and I haven’t done anything differently. What caused this?

No one likes surprises, particularly when it comes to your expenses. When you haven’t changed your habits, it's understandable how a higher than normal bill might not seem to makes sense. But, while you haven’t changed anything, the weather has changed.

High temperatures = higher bills
Even if you never change the settings on your A/C, as the days get longer and hotter, your air conditioner needs to run longer to keep you comfortable.

For example, in hotter months, your A/C can run up to twice as long as it does in cooler months to keep your home at the same temperature. Think of it this way: if the outside temperature is 80 degrees and you have your thermostat set to 78 degrees, then your A/C has to cool your home just 2 degrees. However, when it’s 90 degrees outside, your A/C has to cool your home 12 degrees, running longer to keep the indoor temperature at 78 degrees. Your A/C is one of the largest energy users in your home. So, when it’s running longer, your bill will be higher.

Other factors
With children out of school and guests in town you may be busy entertaining with slumber parties and family cookouts, which means more hand-washing, dishwasher loads, showers and laundry. To help control water heating costs, keep your water heater at 120 degrees, try to wash clothes in cold water and run the dishwasher only when it’s full.

Another reason your bill may seem higher than normal is the variation in billing cycle days. The number of days included in your monthly bill can vary between 28 and 35 days due to holidays and other factors. So even if you use the same amount of electricity per day, your bill may be higher, or lower, from one month to the next depending on the number of days of service included in your bill.

Make your bill lower
We’re here to help you find new ways to save and make your bill even lower. Here are a few things that can help you get started:

View our Summer Tips to learn how to control the cost of cooling your home. Some easy tips include:

  • Keep your thermostat at 78 degrees or warmer with the fan on "auto" and raise the thermostat setting to 82 degrees while you're away
  • Turn off fans when you leave a room
  • Close shades, blinds and drapes to keep the sun’s heat out

Take an Online Home Energy Survey to learn other ways to save within your home.

View your personalized Energy Dashboard to see how the outside temperature and other factors impact your bill by month, day and hour.

Sign up for FPL Budget Billing® to say goodbye to summer bill fluctuations. While not a savings plan, this program evens out your annual energy costs so you pay approximately the same amount each month.

As an FPL customer, you have the lowest electric bill in the state, and we’re committed to always helping you find ways to make it even lower.

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Comments [4]

  1. Deanna Vondrak

    Very good!

  2. Barbara Ellin

    Seasonal living. Using timed AC! Why is condo temperature set lower than a home? A condo has air conditioned living above and below my apartment. Using Dehumidifiers for each 1000 sq. ft. I assume the AC is off. Is that correct? Thanks a million.

  3. Rudi Schubert

    The free energy is the internal energy of a system minus the amount of energy that cannot be used to perform work. I really like this post and Rudi Schubert also explain this topic in his blog.

  4. John

    My wife and I left Florida on the 16th of May for Costa Rica. We have been gone for over 1.5 months. The only appliance left in the on position was the refrigerator. The AC was turned off, the TV's, lamps, internet, etc., were unplugged. Our current bill is higher than the bill of our last full month in Florida. I believe something is wrong. Please evaluate the possibility of an incorrect reading. How is it possible that our bill could be higher than when we were there with no use of appliances and other items. We are currently still in Costa Rica and will be here until the 1st of November. Please check this out for us.


FPL reserves the right to edit any user submissions to "Ask the Energy Expert" for brevity or clarity. Publication of readers' questions or comments is at the sole discretion of FPL.