What the Summit DW186NTADA costs to run
At 234 kWh/yr, the Summit DW186NTADA's ENERGY STAR certification puts it about average for its category to run against every other certified dishwasher.
That $44 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 Summit DW186NTADA compares to other dishwashers
The category average is 232 kWh/yr; this model runs 0.9% above it, ranking 269 of 737 dishwashers tracked here for running cost. 737 certified dishwashers, one average, about $0/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Summit DW186NTADA on that list: Summit DW186NT ($44/yr, 234 kWh/yr) runs slightly less, while Summit DW242W ($44/yr, 234 kWh/yr) runs slightly more.
Same brand, different models
Ranked 17 of Summit's 33 certified dishwashers, this sits between the DW18SS4 ($41/yr, the brand's cheapest) and the LDW24WA ($44/yr, its priciest).
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 Summit DW186NTADA that long and it costs about $396 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified dishwashers go, $44/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
The Summit DW186NTADA already costs $44/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
How this was checked
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 234 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.