What the Bosch SHX78CM** costs to run
The Bosch SHX78CM** 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 427 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 Bosch SHX78CM**: Bosch SHX78CC5UC ($45/yr, 240 kWh/yr), then Bosch SHX78DC** ($45/yr, 240 kWh/yr).
Same brand, different models
Ranked 45 of Bosch's 55 certified dishwashers, this sits between the DWHD661EFP ($40/yr, the brand's cheapest) and the SPX68C*** ($45/yr, its priciest).
Bosch SHX78CM** over 9 years
NAHB's Study of Life Expectancy of Home Components puts a typical dishwasher's service life at 9 years; run the Bosch SHX78CM** that long and it costs about $406 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
Efficient as certified dishwashers go, $45/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 Bosch SHX78CM** already costs $45/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
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. At rank 427 of 737 for running cost, see the dishwasher category page for the rest of the field, or the guide to how much your state matters.