Running cost for the Fisher & Paykel DD24STX6I1
At 114 kWh/yr, the Fisher & Paykel DD24STX6I1's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dishwasher.
That $21 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 50.9% less, ranking 2 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 $22/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 Fisher & Paykel DD24STX6I1: Loch L1126 ($15/yr, 80 kWh/yr), then Fisher & Paykel DD24STX6PX1 ($21/yr, 114 kWh/yr).
Same brand, different models
Of the 15 ENERGY STAR certified dishwashers Fisher & Paykel makes, the DD24STX6I1 is the cheapest to run, $21/year less than Fisher & Paykel's priciest, the DW24U2I3.
Cost over its typical lifespan
9 years is NAHB's typical service life for this category; at $21/year, the Fisher & Paykel DD24STX6I1 adds up to about $193 in electricity over that span.
Shopping for a new one
Efficient as certified dishwashers go, $21/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
The Fisher & Paykel DD24STX6I1 already costs $21/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
The Fisher & Paykel DD24STX6I1 is among the cheapest 737 dishwashers tracked here to run, see the full Dishwasher category page for the rest of the range. The 114 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.