What the Gasbye DryPrime-50-W costs to run
The Gasbye DryPrime-50-W is certified by ENERGY STAR at 525 kWh a year, one of the more expensive models in its category to run among dehumidifiers currently certified.
The $99 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Where this ranks
That's 38.9% above the dehumidifier category average of 378 kWh/yr, and ranks 470 of 546 certified dehumidifiers for annual running cost, 1 being cheapest. Every one of the 546 currently-certified dehumidifiers feeds that average, putting this model about $28/year over it. See how it's calculated on the how it is calculated page.
The closest alternatives by cost
Sorted by running cost among dehumidifiers, one step cheaper is Gasbye DryPrime-50-B ($99/yr, 525 kWh/yr), and one step pricier is Keystone KSTAD504G ($99/yr, 525 kWh/yr).
Comparing Gasbye's own models
Among Gasbye's 3 certified dehumidifiers, this is the priciest to run, $28/year over the DryPrime-35-BP, the brand's cheapest.
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for dehumidifiers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Weighing a replacement
Running above the category average, $99/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
Worth comparing a few current certified models before deciding.
Protecting what you have
At $99/year just to run, a dehumidifier is worth protecting against an unplanned repair bill on top of that.
The data behind this page
Ranked 470 of 546, the Gasbye DryPrime-50-W sits in the middle of the dehumidifier category, see the guide to why your state changes this number for the other half of the math. The 525 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.