Model
Liebherr HCB 2091G
Rank #826 means 825 of the 1,000 refrigerator models we track cost less to run each year; the 45th efficiency percentile means it uses less energy for its size than 45% of those models.
What does the Liebherr HCB 2091G cost to run per year?
Rank #826 of 1,000 puts the Liebherr HCB 2091G among the pricier refrigerator models we track to keep running, at roughly $108 a year. It uses 11% less energy than the U.S. federal standard model in its class, which would cost about $119/yr to run, a saving of roughly $11 a year. Efficiency-wise, once size is accounted for, it sits right around the class median, ahead of 45% of the models we track. Its listing marks it counter-depth, meaning it sits nearly flush with surrounding cabinets rather than protruding a few extra inches like a standard-depth model; that shallower body usually means less interior volume for the same footprint.
Immediately around it on the leaderboard, the Fhiaba S360HST6IU at $108/yr runs a little cheaper and the Miele KFNF 9959 iDE at $108/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A refrigerator typically stays in service for somewhere around 12 years; over that span, the Liebherr HCB 2091G's $108/yr adds up to roughly $1296 in electricity alone, before purchase price or repairs.
Also sold as: Miele KFNF 9959 iDE.
By the numbers
The Liebherr HCB 2091G 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 $108/yr, here is what the Liebherr HCB 2091G adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Liebherr HCB 2091G costs about $1080. That is roughly $110 less than a standard model in its class, which would run closer to $1190 over the same ten years.
How the Liebherr HCB 2091G compares
The refrigerator class we track runs from $8 to $149 a year. At $108/yr, it runs about $44 a year above the class median of $64, and it is about $100 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $119/yr, the Liebherr HCB 2091G uses 11% less energy.
What drives its running cost
At 18.9 cu ft, the Liebherr HCB 2091G is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, and larger refrigerator models generally cost more to run than smaller ones in the same class, simply because there is more to keep cold, spin, heat, or light.
- Counter depth vs standard depth. Standard-depth models generally offer more interior volume per unit of width than counter-depth models, a tradeoff between built-in looks and cubic feet.
- Interior volume. More cubic feet of cold air to maintain generally means a bigger compressor and a higher running-cost figure, even among efficient models.
- Compressor technology. How a compressor cycles, full on/off versus a variable-speed inverter design, is one of the biggest hidden differences behind two fridges with similar cubic feet but different running costs.
- Placement and ventilation. Ventilation clearance around the back and top matters more than most owners expect; a fridge starved of airflow runs its compressor longer to hold the same temperature.
Common questions
Is the Liebherr HCB 2091G cheap to run?
Its $108/yr running cost, rank #826 of 1,000, is above what most refrigerator models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Liebherr HCB 2091G cost per month?
About $8.97 a month, which is the $108 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 580 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $108 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Liebherr HCB 2091G for its size?
45th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 825 | Fhiaba S360HST6IU19.4 cu ft | $108 |
| 824 | Gaggenau RY49270519.4 cu ft | $107 |
| 823 | Lg LF21G6200*20.8 cu ft | $107 |
| 822 | Ge GDE21EMK****20.9 cu ft | $106 |
| 821 | Ge GNE21FYK****20.8 cu ft | $106 |
Source
ES_1017655_HCB 2091G_121920252119166_5632996View certified refrigerator listingsENERGY STAR data as of July 2026Liebherr and HCB 2091G 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.