Running cost for the GE GBT50***V***
ENERGY STAR certifies the GE GBT50***V*** at 240 kWh/yr, about average for its category to run for its category.
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 527 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 GE GBT50***V***: GE DDT70***N*** ($45/yr, 240 kWh/yr), then GE GBT60***V*** ($45/yr, 240 kWh/yr).
Comparing GE's own models
Ranked 12 of GE's 41 certified dishwashers, this sits between the GBF180S*M*** ($44/yr, the brand's cheapest) and the UDT16***V*** ($45/yr, its priciest).
What this adds up to over time
Over the 9-year service life NAHB reports for this category, running the GE GBT50***V*** costs roughly $406 in electricity, separate from the purchase price.
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.
Worth comparing a few current certified models before deciding.
If you're keeping it
Whether or not the GE GBT50***V*** 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. At rank 527 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.