What the TCL W6WC72-B costs to run
At 328.5 kWh/yr, the TCL W6WC72-B's ENERGY STAR certification puts it one of the cheaper models in its category to run against every other certified room air conditioner.
That $62 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 room air conditioner
Against the category average of 603 kWh/yr, this model uses 45.5% less, ranking 29 of 447 room air conditioners tracked here for running cost. That average is drawn from all 447 room air conditioners ENERGY STAR currently certifies, not an outside number, a $52/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 TCL W6WC72-B: TCL W6WC72 ($62/yr, 328.5 kWh/yr), then TCL W6WC72-BI ($62/yr, 328.5 kWh/yr).
Comparing TCL's own models
Ranked 14 of TCL's 59 certified room air conditioners, this sits between the T05WV9M ($51/yr, the brand's cheapest) and the T24WQ2S ($266/yr, its priciest).
TCL W6WC72-B over 10 years
Over the 10-year service life NAHB reports for this category, running the TCL W6WC72-B costs roughly $618 in electricity, separate from the purchase price.
Weighing a replacement
Efficient as certified room air conditioners go, $62/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
A room air conditioner like the TCL W6WC72-B 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.
Where this number comes from
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. The full Room Air Conditioner category page shows all 447 room air conditioners ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.