Running cost for the Whirlpool WRTX7421T***
At 398 kWh/yr, the Whirlpool WRTX7421T***'s ENERGY STAR certification puts it about average for its category to run against every other certified refrigerator.
That $75 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 refrigerator
The category average is 386 kWh/yr; this model runs 3.1% above it, ranking 2,924 of 4,704 refrigerators tracked here for running cost. That average is drawn from all 4,704 refrigerators ENERGY STAR currently certifies, not an outside number, a $2/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 Whirlpool WRTX7421T***: Whirlpool WRTX5421T*** ($75/yr, 398 kWh/yr), then Conserv RF 331-120 (**) ($75/yr, 399 kWh/yr).
Same brand, different models
Ranked 51 of Whirlpool's 156 certified refrigerators, this sits between the AMA27S1E ($40/yr, the brand's cheapest) and the WRF995FIF*** ($142/yr, its priciest).
Cost over its typical lifespan
Over the 13-year service life NAHB reports for this category, running the Whirlpool WRTX7421T*** costs roughly $973 in electricity, separate from the purchase price.
Shopping for a new one
Efficient as certified refrigerators go, $75/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
At $75/year just to run, a refrigerator is worth protecting against an unplanned repair bill on top of that.
Where this number comes from
Ranked 2,924 of 4,704, the Whirlpool WRTX7421T*** sits in the middle of the refrigerator category, see the guide to why your state changes this number for the other half of the math. The 398 kWh/yr figure is ENERGY STAR's own certification, not a wattage estimate; exact dataset IDs are on the data sources page.