Running cost for the LG SIGNATURE WM9998H*A
At 315 kWh/yr, the LG SIGNATURE WM9998H*A's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified clothes dryer.
The $59 figure above uses the simple average of all 51 published state rates. Pick your state for the real number.
LG SIGNATURE WM9998H*A against the category
That's 44.9% below the clothes dryer category average of 572 kWh/yr, and ranks 64 of 639 certified clothes dryers for annual running cost, 1 being cheapest. The category average comes from every clothes dryer ENERGY STAR currently certifies (639 models), not an outside benchmark, about $48/year below that average at the national rate. See the methodology page.
What sits beside it in the ranking
AEG DC240 ($60/yr, 317 kWh/yr) costs a little more to run than the LG SIGNATURE WM9998H*A. LG WKHC202H*A ($56/yr, 299 kWh/yr) costs a little less.
Comparing LG SIGNATURE's own models
LG SIGNATURE sells 5 certified clothes dryers; this one runs cheapest of them, $70/year under the DLGX9901*, its priciest.
LG SIGNATURE WM9998H*A over 12 years
Over the 12-year service life NAHB reports for this category, running the LG SIGNATURE WM9998H*A costs roughly $711 in electricity, separate from the purchase price.
Is it worth replacing?
The LG SIGNATURE WM9998H*A is already efficient for its category at $59/year. If you're shopping and comparing options, this is roughly what a well-chosen new clothes dryer costs to run.
Compare current ENERGY STAR certified clothes dryers before buying.
Protecting what you have
At $59/year just to run, a clothes dryer is worth protecting against an unplanned repair bill on top of that.
Sourcing
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 64 of 639 certified dryers for running cost, the LG SIGNATURE WM9998H*A is also worth reading with a caveat specific to this category: the methodology page explains why ENERGY STAR's own combined-energy figure for dryers can overstate the electric bill impact of a gas model.