Insignia NS-RTM12SS7: running cost
At 311 kWh/yr, the Insignia NS-RTM12SS7's ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified refrigerator.
That $58 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 19.4% less, ranking 1,844 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 $14/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 Insignia NS-RTM12SS7: Frigidaire FRTE1226AW ($58/yr, 311 kWh/yr), then L2 LRT12B2AWW ($58/yr, 311 kWh/yr).
Comparing Insignia's own models
Ranked 53 of Insignia's 92 certified refrigerators, this sits between the NS-WC14SS3 ($23/yr, the brand's cheapest) and the NS-RBM18WH0-C ($88/yr, its priciest).
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical refrigerator's service life at 13 years; run the Insignia NS-RTM12SS7 that long and it costs about $760 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
Efficient as certified refrigerators go, $58/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
$58/year to run is the predictable cost of the Insignia NS-RTM12SS7; a protection plan covers the unpredictable one, a repair bill.
Where this number comes from
Nothing here is estimated from a nameplate wattage; the 311 kWh/yr is ENERGY STAR's own certified figure for this model. The full Refrigerator category page shows all 4,704 refrigerators ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.