Running cost for the LG SDWB24**
The LG SDWB24** is certified by ENERGY STAR at 238 kWh a year, about average for its category to run among dishwashers currently certified.
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 313 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 SDWB24**: LG LDTS555** ($45/yr, 238 kWh/yr), then LG SDWD24** ($45/yr, 238 kWh/yr).
Within the LG lineup
Ranked 37 of LG's 38 certified dishwashers, this sits between the LDNFC33L* ($41/yr, the brand's cheapest) and the SDWD24** ($45/yr, its priciest).
LG SDWB24** over 9 years
9 years is NAHB's typical service life for this category; at $45/year, the LG SDWB24** adds up to about $403 in electricity over that span.
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.
Compare current ENERGY STAR certified dishwashers before buying.
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
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 313 of 737, the LG SDWB24** 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.