What the Bosch SHX78CC5UC, SHE78D7*** costs to run
ENERGY STAR certifies the Bosch SHX78CC5UC, SHE78D7*** at 221 kWh/yr, about average for its category to run for its category.
That $42 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
Against the category average of 232 kWh/yr, this model uses 4.7% less, ranking 99 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 SHX78CC5UC, SHE78D7***: Whirlpool WDFS5118SS ($41/yr, 220 kWh/yr), then Fisher & Paykel DW24U2I3 ($42/yr, 224 kWh/yr).
Within the Bosch lineup
Ranked 4 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 SHX78CC5UC, SHE78D7*** 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 SHX78CC5UC, SHE78D7*** that long and it costs about $374 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified dishwashers go, $42/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
If you're keeping it
$42/year to run is the predictable cost of the Bosch SHX78CC5UC, SHE78D7***; a protection plan covers the unpredictable one, a repair bill.
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 99 of 737, the Bosch SHX78CC5UC, SHE78D7*** 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.