Running cost for the Dacor DDW24G9000AP
The Dacor DDW24G9000AP is certified by ENERGY STAR at 225 kWh a year, about average for its category to run among dishwashers currently certified.
That $42 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
Against the category average of 232 kWh/yr, this model uses 3% less, ranking 116 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 $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 Dacor DDW24G9000AP: Cove DW2451/ADA ($42/yr, 225 kWh/yr), then Electrolux EDSH4944CS***A ($42/yr, 225 kWh/yr).
Within the Dacor lineup
The Dacor DDW24G9000AP is the only dishwasher from Dacor that ENERGY STAR currently certifies, so there's no same-brand model to weigh it against here, only the full dishwasher category.
What this adds up to over time
NAHB's Study of Life Expectancy of Home Components puts a typical dishwasher's service life at 9 years; run the Dacor DDW24G9000AP that long and it costs about $381 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified dishwashers go, $42/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
Whether or not the Dacor DDW24G9000AP ever needs replacing, a repair is the more common failure for a dishwasher, one a protection plan budgets for ahead of time.
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 225 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.