What the LG LDF554#** costs to run
At 238 kWh/yr, the LG LDF554#**'s ENERGY STAR certification puts it about average for its category to run against every other certified dishwasher.
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 2.6% above it, ranking 296 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 $1/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 LG LDF554#**: LG LDB454*** ($45/yr, 238 kWh/yr), then LG LDFC242** ($45/yr, 238 kWh/yr).
Comparing LG's own models
Ranked 20 of LG's 38 certified dishwashers, this sits between the LDNFC33L* ($41/yr, the brand's cheapest) and the SDWD24** ($45/yr, its priciest).
Cost over its typical lifespan
9 years is NAHB's typical service life for this category; at $45/year, the LG LDF554#** adds up to about $403 in electricity over that span.
Shopping for a new one
Efficient as certified dishwashers go, $45/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
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.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 238 kWh/yr is ENERGY STAR's own certified figure for this model. The full Dishwasher category page shows all 737 dishwashers ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.