Model
Sub-Zero ID-24F
Rank #200 means 199 of the 622 freezer models we track cost less to run each year; the 5th efficiency percentile means it uses less energy for its size than 5% of those models.
What does the Sub-Zero ID-24F cost to run per year?
At $70 a year to run, the Sub-Zero ID-24F runs cheaper than most models in its class, ranking #200 of 622 freezer models we track. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $78/yr to run, a saving of roughly $8 a year. Once capacity is factored in, its efficiency percentile of 5 is among the lowest in its class. At 3.8 cu ft, it is a small freezer for the class, which runs 1.1 to 23 cu ft; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Marvel MPFZ*24-SS*1A at $68/yr runs a little cheaper and the Sub-Zero ID-24FI at $70/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A freezer typically stays in service for somewhere around 14 years; over that span, the Sub-Zero ID-24F's $70/yr adds up to roughly $980 in electricity alone, before purchase price or repairs.
Also sold as: Sub-Zero ID-24FI.
By the numbers
The Sub-Zero ID-24F normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $70/yr, here is what the Sub-Zero ID-24F adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Sub-Zero ID-24F costs about $700. That is roughly $80 less than a standard model in its class, which would run closer to $780 over the same ten years.
How the Sub-Zero ID-24F compares
The freezer class we track runs from $25 to $120 a year. At $70/yr, it runs about $5 a year cheaper than the class median of $75, and it is about $45 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $78/yr, the Sub-Zero ID-24F uses 10% less energy.
What drives its running cost
At 3.8 cu ft, the Sub-Zero ID-24F is a small freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, at the small end of the class, capacity itself is doing a lot of the work to keep that figure down, separate from how efficient the unit actually is.
- Interior volume. Cubic feet of frozen storage is the first lever behind a freezer's running cost, ahead of insulation or defrost type.
- Insulation and defrost type. Two freezers of the same size can differ meaningfully on running cost based on insulation quality and whether they run an automatic-defrost heater.
- Chest vs upright design. Chest freezers open from the top, so cold air, which sinks, stays inside when the lid opens; upright freezers lose more cold air per door opening for a similar capacity.
Common questions
Is the Sub-Zero ID-24F cheap to run?
Yes, relatively. At $70 a year it ranks #200 of 622 freezer models we track, in the cheaper part of its class to run.
How much does the Sub-Zero ID-24F cost per month?
Roughly $5.83/mo, spreading the $70/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 377 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $70 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Sub-Zero ID-24F for its size?
5th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 199 | Marvel MPFZ*24-SS*1A4.6 cu ft | $68 |
| 198 | Marvel MPFZ*24-IS*1A4.6 cu ft | $68 |
| 197 | Marvel MOFZ*24-SS*1A4.6 cu ft | $68 |
| 196 | Marvel MLFZ*24-SS*1A4.6 cu ft | $68 |
| 195 | Marvel MLFZ*24-IS*1A4.6 cu ft | $68 |
Source
ES_0031863_ID-24F_04302014021433_2723809View certified freezer listingsENERGY STAR data as of July 2026Sub-Zero and ID-24F are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.