What the COSTWAY ES10810US-WH costs to run
At 199 kWh/yr, the COSTWAY ES10810US-WH's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dehumidifier.
That $37 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
Against the category average of 378 kWh/yr, this model uses 47.4% less, ranking 79 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 $34/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 ES10810US-WH: WINFIRE FDD20-5272V1R5-E ($37/yr, 198 kWh/yr), then Ludatido FDD20-527BZV1R5-E ($37/yr, 199 kWh/yr).
Same brand, different models
Ranked 2 of COSTWAY's 3 certified dehumidifiers, this sits between the ES10328US-WH ($36/yr, the brand's cheapest) and the ES10429US-WH ($146/yr, its priciest).
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.
Shopping for a new one
Efficient as certified dehumidifiers go, $37/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified dehumidifiers before buying.
If you're keeping it
At $37/year just to run, a dehumidifier is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 199 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 79 of 546, the COSTWAY ES10810US-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.