Whirlpool WRTX7421T Running Cost (Refrigerator)
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.