What the Summit LDW18WA costs to run
At 234 kWh/yr, the Summit LDW18WA'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 LDW18WA compares to other dishwashers
The category average is 232 kWh/yr; this model runs 0.9% above it, ranking 281 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 LDW18WA on that list: Summit LDW18SSA ($44/yr, 234 kWh/yr) runs slightly less, while Summit LDW24BA ($44/yr, 234 kWh/yr) runs slightly more.
Within the Summit lineup
Ranked 29 of Summit's 33 certified dishwashers, this sits between the DW18SS4 ($41/yr, the brand's cheapest) and the LDW24WA ($44/yr, its priciest).
Cost over its typical lifespan
Over the 9-year service life NAHB reports for this category, running the Summit LDW18WA costs roughly $396 in electricity, separate from the purchase price.
Shopping for a new one
Efficient as certified dishwashers go, $44/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
At $44/year just to run, a dishwasher is worth protecting against an unplanned repair bill on top of that.
How this was checked
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 281 of 737, the Summit LDW18WA 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.