What the Midea MAD35S1BWWT costs to run
ENERGY STAR certifies the Midea MAD35S1BWWT at 383 kWh/yr, about average for its category to run for its category.
That $72 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 1.3% above it, ranking 342 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 $1/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 Midea MAD35S1BWWT: Insignia NS-DH35WH7-C ($72/yr, 383 kWh/yr), then Midea MAD35S1CWWT ($72/yr, 383 kWh/yr).
Within the Midea lineup
Ranked 20 of Midea's 44 certified dehumidifiers, this sits between the MAD20S1QWT ($47/yr, the brand's cheapest) and the MDUDP-50AEN8-BB0 ($99/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.
Weighing a replacement
Efficient as certified dehumidifiers go, $72/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
A dehumidifier like the Midea MAD35S1BWWT is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
Where this number comes from
Ranked 342 of 546, the Midea MAD35S1BWWT 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 383 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.