Ikea 705.910.18: running cost
The Ikea 705.910.18 is certified by ENERGY STAR at 240 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 3.4% above it, ranking 590 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 $2/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 Ikea 705.910.18: Ikea 005.876.23 ($45/yr, 240 kWh/yr), then Ikea FL�BODA 305.911.57 ($45/yr, 240 kWh/yr).
Within the Ikea lineup
Ranked 2 of Ikea's 5 certified dishwashers, this sits between the 005.876.23 ($45/yr, the brand's cheapest) and the RANSBERG 105.911.58 ($45/yr, its priciest).
Cost over its typical lifespan
9 years is NAHB's typical service life for this category; at $45/year, the Ikea 705.910.18 adds up to about $406 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.
Worth comparing a few current certified models before deciding.
If you're keeping it
A dishwasher like the Ikea 705.910.18 is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
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 590 of 737, the Ikea 705.910.18 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.