Danby DDW18D1EW: running cost
The Danby DDW18D1EW is certified by ENERGY STAR at 239 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% above it, ranking 338 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 Danby DDW18D1EW: Danby DDW18D1ESS ($45/yr, 239 kWh/yr), then Danby DDW2400ESS ($45/yr, 239 kWh/yr).
Comparing Danby's own models
Ranked 7 of Danby's 11 certified dishwashers, this sits between the DDW621WDB ($29/yr, the brand's cheapest) and the DDW2404EBSS ($45/yr, its priciest).
Danby DDW18D1EW over 9 years
9 years is NAHB's typical service life for this category; at $45/year, the Danby DDW18D1EW adds up to about $404 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.
Compare current ENERGY STAR certified dishwashers before buying.
If you're keeping it
Whether or not the Danby DDW18D1EW 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
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 338 of 737, the Danby DDW18D1EW 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.