Running cost for the SPT SD-2224**
At 155 kWh/yr, the SPT SD-2224**'s ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified dishwasher.
That $29 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 33.2% less, ranking 29 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 $14/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 SPT SD-2224**: Midea WQP6-3602M-US ($29/yr, 155 kWh/yr), then SPT SD-2225** ($29/yr, 155 kWh/yr).
Same brand, different models
Of the 10 ENERGY STAR certified dishwashers SPT makes, the SD-2224** is the cheapest to run, $16/year less than SPT's priciest, the SD-9263W.
SPT SD-2224** over 9 years
9 years is NAHB's typical service life for this category; at $29/year, the SPT SD-2224** adds up to about $262 in electricity over that span.
Is it worth replacing?
Efficient as certified dishwashers go, $29/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 SPT SD-2224** already costs $29/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. Ranked 29 of 737, the SPT SD-2224** 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.