HEYNEMO ZDW001BK-11-HM: running cost
The HEYNEMO ZDW001BK-11-HM is certified by ENERGY STAR at 240 kWh a year, about average for its category to run among dishwashers currently certified.
That $45 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 dishwasher
The category average is 232 kWh/yr; this model runs 3.4% above it, ranking 578 of 737 dishwashers tracked here for running cost. That average is drawn from all 737 dishwashers ENERGY STAR currently certifies, not an outside number, a $2/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 HEYNEMO ZDW001BK-11-HM: Hamilton Beach HBDW1922 ($45/yr, 240 kWh/yr), then HEYNEMO ZDW001GY-11-HM ($45/yr, 240 kWh/yr).
Within the HEYNEMO lineup
Of the 6 ENERGY STAR certified dishwashers HEYNEMO makes, the ZDW001BK-11-HM is the cheapest to run, about the same, within a dollar a year, less than HEYNEMO's priciest, the ZDW002SL-11-HM.
Cost over its typical lifespan
9 years is NAHB's typical service life for this category; at $45/year, the HEYNEMO ZDW001BK-11-HM adds up to about $406 in electricity over that span.
Weighing a replacement
Efficient as certified dishwashers go, $45/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
At $45/year just to run, a dishwasher is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
The full Dishwasher category page shows all 737 dishwashers ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 240 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.