What the COSTWAY ES10429US-WH costs to run
At 779 kWh/yr, the COSTWAY ES10429US-WH's ENERGY STAR certification puts it one of the more expensive models in its category to run against every other certified dehumidifier.
That $146 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a dehumidifier
The category average is 378 kWh/yr; this model runs 106.1% above it, ranking 535 of 546 dehumidifiers tracked here for running cost. That average is drawn from all 546 dehumidifiers ENERGY STAR currently certifies, not an outside number, a $75/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the COSTWAY ES10429US-WH: Aprilaire E080 ($119/yr, 632 kWh/yr), then Wellsle YDL24P ($149/yr, 791 kWh/yr).
Comparing COSTWAY's own models
Of the 3 ENERGY STAR certified dehumidifiers COSTWAY makes, the ES10429US-WH costs the most to run, $111/year more than COSTWAY's cheapest, the ES10328US-WH.
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, $146/year is exactly the kind of number that makes a newer, more efficient model pay for itself faster.
Compare current ENERGY STAR certified dehumidifiers before buying.
If you're keeping it
The COSTWAY ES10429US-WH already costs $146/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 779 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 535 of 546, the COSTWAY ES10429US-WH 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.