What the VIKING VDWU324SS costs to run
ENERGY STAR certifies the VIKING VDWU324SS at 225 kWh/yr, about average for its category to run for its category.
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 128 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 VIKING VDWU324SS: VIKING FDWU524 ($42/yr, 225 kWh/yr), then VIKING VDWU524SS ($42/yr, 225 kWh/yr).
Same brand, different models
Ranked 2 of VIKING's 4 certified dishwashers, this sits between the FDWU524 ($42/yr, the brand's cheapest) and the VDWU524WSSS ($45/yr, its priciest).
VIKING VDWU324SS over 9 years
9 years is NAHB's typical service life for this category; at $42/year, the VIKING VDWU324SS adds up to about $381 in electricity over that span.
Is it worth replacing?
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
The VIKING VDWU324SS already costs $42/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 225 kWh/yr is ENERGY STAR's own certified figure for this model. Ranked 128 of 737, the VIKING VDWU324SS 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.