What the LG WM3090C* costs to run
The LG WM3090C* is certified by ENERGY STAR at 100 kWh a year, cheaper than most models in its category to run among washing machines currently certified.
That $19 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 LG WM3090C* compares to other washing machines
Against the category average of 123 kWh/yr, this model uses 18.7% less, ranking 107 of 398 washing machines tracked here for running cost. 398 certified washing machines, one average, about $4/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the LG WM3090C* on that list: Gorenje WNPA64U ($19/yr, 100 kWh/yr) runs slightly less, while LG WM3095C* ($19/yr, 100 kWh/yr) runs slightly more.
Same brand, different models
Ranked 17 of LG's 93 certified washing machines, this sits between the WM3420C* ($15/yr, the brand's cheapest) and the WT7485C* ($41/yr, its priciest).
LG WM3090C* over 10 years
NAHB's Study of Life Expectancy of Home Components puts a typical washing machine's service life at 10 years; run the LG WM3090C* that long and it costs about $188 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified washing machines go, $19/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 $19/year just to run, a washing machine is worth protecting against an unplanned repair bill on top of that.
How this was checked
At rank 107 of 398 for running cost, see the washing machine category page for the rest of the field, or the guide to how much your state matters. The 100 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.