LG WM3900HA Running Cost (Washing Machine)
LG WM3900HA: running cost
The LG WM3900HA is certified by ENERGY STAR at 105 kWh a year, cheaper than most models in its category to run among washing machines currently certified.
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.
Efficient, or not, for a washing machine
Against the category average of 123 kWh/yr, this model uses 14.6% less, ranking 145 of 398 washing machines tracked here for running cost. That average is drawn from all 398 washing machines ENERGY STAR currently certifies, not an outside number, a $3/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 WM3900HA: LG WM3850HA ($20/yr, 105 kWh/yr), then LG WM4000HA ($20/yr, 105 kWh/yr).
Same brand, different models
Ranked 36 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
Over the 10-year service life NAHB reports for this category, running the LG WM3900HA costs roughly $197 in electricity, separate from the purchase price.
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.
Compare current ENERGY STAR certified washing machines before buying.
If you're keeping it
The LG WM3900HA already costs $20/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
Where this number comes from
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 105 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.