Model
Black+Decker BUC1100XS
Rank #167 means 166 of the 622 freezer models we track cost less to run each year; the 42nd efficiency percentile means it uses less energy for its size than 42% of those models.
What does the Black+Decker BUC1100XS cost to run per year?
At $66 a year to run, the Black+Decker BUC1100XS runs cheaper than most models in its class, ranking #167 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 $73/yr to run, a saving of roughly $7 a year. Its 42th size-adjusted efficiency percentile is unremarkable, close to what a typical model in the class scores. At 11 cu ft, it is a mid-size 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 Black+Decker BUC1100XB at $66/yr runs a little cheaper and the Black+Decker BUC1100XW at $66/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 Black+Decker BUC1100XS's $66/yr adds up to roughly $924 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BUC1100XB.
By the numbers
The Black+Decker BUC1100XS 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 $66/yr, here is what the Black+Decker BUC1100XS adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Black+Decker BUC1100XS costs about $660. That is roughly $70 less than a standard model in its class, which would run closer to $730 over the same ten years.
How the Black+Decker BUC1100XS compares
The freezer class we track runs from $25 to $120 a year. At $66/yr, it runs about $9 a year cheaper than the class median of $75, and it is about $41 a year more than the cheapest freezer to run at $25. Against the US federal standard model for its class at about $73/yr, the Black+Decker BUC1100XS uses 10% less energy.
What drives its running cost
At 11 cu ft, the Black+Decker BUC1100XS is a mid-size freezer for its class, which spans 1.1 to 23 cu ft with a median of 13.8 cu ft, putting it squarely in the middle of the class on the size lever that drives most of the cost.
- 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 Black+Decker BUC1100XS cheap to run?
Yes, relatively. At $66 a year it ranks #167 of 622 freezer models we track, in the cheaper part of its class to run.
How much does the Black+Decker BUC1100XS cost per month?
Roughly $5.48/mo, spreading the $66/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 354 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $66 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Black+Decker BUC1100XS for its size?
42nd percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 167 | Black+Decker BUC1100XB11 cu ft | $66 |
| 166 | Avanti VF108K0W11.1 cu ft | $66 |
| 165 | Avanti AV1081VFK0W11.1 cu ft | $66 |
| 164 | Miele FNS 7794 E7.5 cu ft | $65 |
| 163 | Liebherr SIF51817.5 cu ft | $65 |
Source
ES_1126481_BUC1100XS_01272025154313_80230451View certified freezer listingsENERGY STAR data as of July 2026Black+Decker and BUC1100XS 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.