Sharp SDW6506**: running cost
ENERGY STAR certifies the Sharp SDW6506** 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.
How the Sharp SDW6506** compares to other dishwashers
The category average is 232 kWh/yr; this model runs 3.4% above it, ranking 685 of 737 dishwashers tracked here for running cost. 737 certified dishwashers, one average, about $2/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Sharp SDW6506** on that list: Sharp SDW6504M* ($45/yr, 240 kWh/yr) runs slightly less, while Sharp SDW6726M* ($45/yr, 240 kWh/yr) runs slightly more.
Same brand, different models
Ranked 4 of Sharp's 15 certified dishwashers, this sits between the SDW6888** ($43/yr, the brand's cheapest) and the SDY6768SMS ($45/yr, its priciest).
Sharp SDW6506** over 9 years
NAHB's Study of Life Expectancy of Home Components puts a typical dishwasher's service life at 9 years; run the Sharp SDW6506** 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.
Worth comparing a few current certified models before deciding.
If you're keeping it
At $45/year just to run, a dishwasher is worth protecting against an unplanned repair bill on top of that.
How this was checked
At rank 685 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. The 240 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.