Sharp SDW6504M*: running cost
At 240 kWh/yr, the Sharp SDW6504M*'s ENERGY STAR certification puts it about average for its category to run against every other certified dishwasher.
The $45 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
Sharp SDW6504M* against the category
That's 3.4% above the dishwasher category average of 232 kWh/yr, and ranks 684 of 737 certified dishwashers for annual running cost, 1 being cheapest. The category average comes from every dishwasher ENERGY STAR currently certifies (737 models), not an outside benchmark, about $2/year above that average at the national rate. See the methodology page.
What sits beside it in the ranking
Sharp SDW6506** ($45/yr, 240 kWh/yr) costs a little more to run than the Sharp SDW6504M*. Sharp SDW4523** ($45/yr, 240 kWh/yr) costs a little less.
Same brand, different models
Sharp makes 15 ENERGY STAR certified dishwashers; this one ranks 3 of 15 for running cost, between the brand's cheapest, the SDW6888** at $43/yr, and its priciest, the SDY6768SMS at $45/yr.
What this adds up to over time
9 years is NAHB's typical service life for this category; at $45/year, the Sharp SDW6504M* adds up to about $406 in electricity over that span.
Weighing a replacement
The Sharp SDW6504M* is already efficient for its category at $45/year. If you're shopping and comparing options, this is roughly what a well-chosen new dishwasher costs to run.
See what else is certified in this category before you decide.
Protecting what you have
$45/year to run is the predictable cost of the Sharp SDW6504M*; a protection plan covers the unpredictable one, a repair bill.
Sourcing
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 684 of 737, the Sharp SDW6504M* 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.