Blomberg DWT 52600 ****: running cost
The Blomberg DWT 52600 **** is certified by ENERGY STAR at 234 kWh a year, about average for its category to run among dishwashers currently certified.
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.
Efficient, or not, for a dishwasher
The category average is 232 kWh/yr; this model runs 0.9% above it, ranking 201 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 $0/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 Blomberg DWT 52600 ****: Blomberg DWT 51600 **** ($44/yr, 234 kWh/yr), then BRAMA BRDW2400SS ($44/yr, 234 kWh/yr).
Same brand, different models
Ranked 10 of Blomberg's 11 certified dishwashers, this sits between the DWS 51502 **** ($41/yr, the brand's cheapest) and the DWT 81900 ***WS ($45/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 Blomberg DWT 52600 **** that long and it costs about $396 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
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
Whether or not the Blomberg DWT 52600 **** 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 201 of 737, the Blomberg DWT 52600 **** 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.