Running cost for the LG WM8900H*A
ENERGY STAR certifies the LG WM8900H*A at 105 kWh/yr, cheaper than most models in its category to run for its category.
That $20 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 WM8900H*A compares to other washing machines
Against the category average of 123 kWh/yr, this model uses 14.6% less, ranking 157 of 398 washing machines tracked here for running cost. 398 certified washing machines, one average, about $3/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the LG WM8900H*A on that list: LG WM6700H*A ($20/yr, 105 kWh/yr) runs slightly less, while LG WM8980H*A ($20/yr, 105 kWh/yr) runs slightly more.
Within the LG lineup
Ranked 48 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 WM8900H*A 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 WM8900H*A that long and it costs about $197 in electricity, on top of whatever it cost to buy.
Shopping for a new one
Efficient as certified washing machines go, $20/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
Whether or not the LG WM8900H*A ever needs replacing, a repair is the more common failure for a washing machine, one a protection plan budgets for ahead of time.
How this was checked
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 157 of 398, the LG WM8900H*A sits in the middle of the washing machine category, see the guide to why your state changes this number for the other half of the math.