Nepsam NS1415DH50WT: running cost
At 181 kWh/yr, the Nepsam NS1415DH50WT's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dehumidifier.
That $34 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 52.1% less, ranking 51 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 $37/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 Nepsam NS1415DH50WT: MANASTIN T-DH26-1415-50WT ($34/yr, 181 kWh/yr), then NEWBULIG AS-CSJ72XK-4D5WT-OL ($34/yr, 181 kWh/yr).
Within the Nepsam lineup
The Nepsam NS1415DH50WT is the only dehumidifier from Nepsam that ENERGY STAR currently certifies, so there's no same-brand model to weigh it against here, only the full dehumidifier category.
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.
Is it worth replacing?
Efficient as certified dehumidifiers go, $34/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
If you're keeping it
The Nepsam NS1415DH50WT already costs $34/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
At rank 51 of 546 for running cost, see the dehumidifier category page for the rest of the field, or the guide to how much your state matters. The 181 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.