Dehumidifier Electricity Cost in Florida: Run the Numbers
Working out the dehumidifier electricity cost in Florida takes different arithmetic than it does up north, because the machine here does not switch off for the season. Annual consumption across certified portable models runs from 105 to 530 kWh in the federal register, with a median of 340. At Florida rates that is the difference between a couple of dollars a month and a line you notice on the bill. Below: where the figure comes from, and a calculator for your own rate.
Where the number comes from
The ENERGY STAR register publishes annual energy consumption in kilowatt-hours for every certified model. It is a calculated figure under the DOE method, not a reading from your meter: it makes models comparable under identical conditions, and it does not predict your bill. How the underlying test works is set out on the pint ratings page.
| DOE class, pints/day | Models | Lowest, kWh/yr | Median | Highest |
|---|---|---|---|---|
| Up to 25 | 247 | 105 | 276 | 886 |
| 25 to 35 | 38 | 283 | 341 | 382 |
| 35 to 45 | 64 | 355 | 378 | 444 |
| 45 to 50 | 162 | 471 | 520 | 530 |
ENERGY STAR register, all 511 certified portable models. Capacity per DOE Appendix X1 at 65 °F / 60% RH.
Read it this way: the class sets the order of magnitude, and there is still spread inside each class. In the largest class the spread is narrow, 471 to 530 kWh. In the smallest it looks eightfold, but the top of that range rests on a single record: DEVERSE D025H-25Pt3 at 886 kWh on a capacity of 24.93 pints. Other models at the same capacity and the same efficiency sit near 280. That looks like an error in one filing, and which figure is the correct one does not follow from the register.
Dehumidifier electricity cost calculator
Which rate to use
Take the exact figure from your own bill. Florida has 36 electricity providers and the rate depends on whose service area you are in.
For orientation: EIA puts the state’s average residential rate at 15.38 cents per kWh for its April 2026 reporting month. At Florida Power & Light, the largest provider, the typical 1,000 kWh bill from 1 January 2026 is $136.64, which works out to roughly 13.7 cents all in. Across the state the range runs about 13 to 16 cents.
Florida sits below the national level of roughly 18.8 cents. Household consumption here runs well above the national average because of year-round cooling, so the bill itself is not small.
Why the Florida arithmetic is different
Northern write-ups count a season, so the dehumidifier electricity cost they quote covers three or four months of running with the machine idle the rest of the year. Multiply that by four and you have the Florida picture.
Which inverts the usual reasoning at the point of purchase. Fifty kilowatt-hours a year between two models looks like nothing in the shop, and it is a gap that repeats every year the machine is alive. Between the thriftiest and the hungriest model in the largest class the difference is 59 kWh a year; between the 45-to-50 class and the up-to-25 class it is around 240.
Buying smaller to save money does not automatically work, either. An undersized unit runs without stopping and never reaches the setpoint. Size it against floor area and moisture load with the Florida dehumidifier calculator.
What actually lowers the bill
IEF rather than capacity. The integrated energy factor states how many litres of water the machine removes per kilowatt-hour. The ENERGY STAR minimum is 1.70 L/kWh up to 25 pints and 2.01 from 25.01 to 50. Most models are built to sit exactly on that threshold, so the ones above it stand out immediately.
The setpoint. Every percentage point lower is more compressor hours. The working target for living space is 50%, and going below that makes sense on medical advice, as covered on the humidity setting page.
The right size. A machine that cycles costs less than one that runs continuously and never catches up.
What the register does not carry is your actual consumption, which depends on moisture load, temperature and how often the doors open. For picking a specific machine, review data and recall history by brand sit in the Florida scorecard.
Frequently asked questions
How much electricity does a dehumidifier use per month?
Divide the model’s annual consumption by 12 and multiply by your rate. At the median 340 kWh a year and a rate of 15.4 cents, that is about $4.36 a month.
How much does it cost to run a dehumidifier in Florida?
It depends on the class of machine and on your provider. Annual consumption across certified portable models runs from 105 to 530 kWh, and rates across the state run roughly 13 to 16 cents per kWh.
Do dehumidifiers use a lot of electricity?
Annual consumption across certified portable models runs from 105 to 530 kWh, median 340, which at around 15 cents comes to roughly $4 to $7 a month. What makes Florida different is that the machine runs all year, so the annual figure is the actual one rather than a seasonal share.
Is a bigger dehumidifier more expensive to run?
Usually: the median for the largest class is 520 kWh a year against 276 for the smallest. But a machine too small for the space runs continuously and can end up costing more than a correctly sized one.
What is IEF on a dehumidifier?
The integrated energy factor, in litres of water collected per kilowatt-hour. The higher it is, the less electricity the machine uses for the same capacity.
Sources
- ENERGY STAR Certified Dehumidifiers register, EPA and DOE: annual energy consumption for 511 portable models. data.energystar.gov
- ENERGY STAR Dehumidifiers Key Efficiency Criteria, Version 6.0, effective 1 October 2025. energystar.gov
- U.S. Energy Information Administration: Florida average residential rate, April 2026 reporting month.
- Florida Power & Light: typical 1,000 kWh residential bill effective 1 January 2026, under the settlement approved by the Florida Public Service Commission on 20 November 2025.
- DOE test procedure: 10 CFR Part 430, Subpart B, Appendix X1.
- Method notes: /methodology/