LG WM3450C*: running cost
The LG WM3450C* 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 WM3450C* compares to other washing machines
Against the category average of 123 kWh/yr, this model uses 18.7% less, ranking 110 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 WM3450C* on that list: LG WM3400C* ($19/yr, 100 kWh/yr) runs slightly less, while LG WM3460C* ($19/yr, 100 kWh/yr) runs slightly more.
Within the LG lineup
Ranked 20 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).
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical washing machine's service life at 10 years; run the LG WM3450C* 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.
See what else is certified in this category before you decide.
If you're keeping it
A washing machine like the LG WM3450C* is a real household expense whether or not it needs replacing yet; a protection plan is one way to budget for a repair rather than a full replacement.
How this was checked
The full Washing Machine category page shows all 398 washing machines ranked by cost; the state-rate guide covers the half of this number that isn't the appliance. The 100 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.