Sub-Zero ID-30F Running Cost (Freezer)
Running cost for the Sub-Zero ID-30F
At 356 kWh/yr, the Sub-Zero ID-30F's ENERGY STAR certification puts it cheaper than most models in its category to run against every other certified freezer.
That $67 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 freezer
Against the category average of 401 kWh/yr, this model uses 11.2% less, ranking 197 of 658 freezers tracked here for running cost. That average is drawn from all 658 freezers ENERGY STAR currently certifies, not an outside number, a $8/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 Sub-Zero ID-30F: Vissani MDUF116 ($67/yr, 355 kWh/yr), then Samsung RZ11M7074 ($68/yr, 361 kWh/yr).
Same brand, different models
Of the 8 ENERGY STAR certified freezers Sub-Zero makes, the ID-30F is the cheapest to run, $53/year less than Sub-Zero's priciest, the CL3650F/S//.
Lifespan
NAHB's Study of Life Expectancy of Home Components does not publish a figure for freezers, so no lifetime cost is shown here rather than a guessed one. The annual and monthly figures above stand on their own.
Shopping for a new one
Efficient as certified freezers go, $67/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 $67/year just to run, a freezer is worth protecting against an unplanned repair bill on top of that.
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 Freezer category page shows all 658 freezers ranked by cost; the state-rate guide covers the half of this number that isn't the appliance.