XO XOU15ORSR: running cost
The XO XOU15ORSR is certified by ENERGY STAR at 259 kWh a year, one of the cheaper models in its category to run among refrigerators currently certified.
That $49 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
Against the category average of 386 kWh/yr, this model uses 32.9% less, ranking 1,287 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 $24/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 XO XOU15ORSR: XO XOU15ORSL ($49/yr, 259 kWh/yr), then Arctic King ARM33A5ABB ($49/yr, 260 kWh/yr).
Same brand, different models
Ranked 34 of XO's 54 certified refrigerators, this sits between the XOU24WDZGOA ($26/yr, the brand's cheapest) and the XOU24ORSR ($52/yr, its priciest).
What this adds up to over time
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the XO XOU15ORSR that long and it costs about $633 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
Efficient as certified refrigerators go, $49/year is a reasonable baseline if you're comparing what else is on the market.
Compare current ENERGY STAR certified refrigerators before buying.
If you're keeping it
Whether or not the XO XOU15ORSR ever needs replacing, a repair is the more common failure for a refrigerator, one a protection plan budgets for ahead of time.
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. Ranked 1,287 of 4,704, the XO XOU15ORSR 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.