Cove DW2451/ADA: running cost
The Cove DW2451/ADA 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.
How the Cove DW2451/ADA compares to other dishwashers
Against the category average of 232 kWh/yr, this model uses 3% less, ranking 115 of 737 dishwashers tracked here for running cost. 737 certified dishwashers, one average, about $1/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Cove DW2451/ADA on that list: Bosch SHP65DC** ($42/yr, 225 kWh/yr) runs slightly less, while Dacor DDW24G9000AP ($42/yr, 225 kWh/yr) runs slightly more.
Same brand, different models
Of the 2 ENERGY STAR certified dishwashers Cove makes, the DW2451/ADA is the cheapest to run, $1/year less than Cove's priciest, the DW2451.
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical dishwasher's service life at 9 years; run the Cove DW2451/ADA 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.
Worth comparing a few current certified models before deciding.
If you're keeping it
Whether or not the Cove DW2451/ADA ever needs replacing, a repair is the more common failure for a dishwasher, one a protection plan budgets for ahead of time.
How this was checked
Ranked 115 of 737, the Cove DW2451/ADA sits in the middle of the dishwasher category, see the guide to why your state changes this number for the other half of the math. The 225 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.