Model
Mora MRB221N6AWE
Rank #748 means 747 of the 1,000 refrigerator models we track cost less to run each year; the 84th efficiency percentile means it uses less energy for its size than 84% of those models.
What does the Mora MRB221N6AWE cost to run per year?
At about $93 a year, the Mora MRB221N6AWE costs more to run than most refrigerator models we track, rank #748 of 1,000. It uses 11% less energy than the U.S. federal standard model in its class, which would cost about $104/yr to run, a saving of roughly $11 a year. Size-adjusted, this model beats 84% of refrigerator models we track on efficiency, one of the stronger results in its class. This class has no published efficiency-factor figure beyond annual kWh itself, so at 22.3 cu ft (the class spans 1.2 to 31.7), size is the clearest lever we can point to for this model's running cost.
Immediately around it on the leaderboard, the Hisense HRB221N6AWE at $93/yr runs a little cheaper and the Miele KF 2902 Vi at $94/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 Mora MRB221N6AWE's $93/yr adds up to roughly $1116 in electricity alone, before purchase price or repairs.
Also sold as: Hisense HRB221N6AWE.
By the numbers
The Mora MRB221N6AWE 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 $93/yr, here is what the Mora MRB221N6AWE adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Mora MRB221N6AWE costs about $930. That is roughly $110 less than a standard model in its class, which would run closer to $1040 over the same ten years.
How the Mora MRB221N6AWE compares
The refrigerator class we track runs from $8 to $149 a year. At $93/yr, it runs about $29 a year above the class median of $64, and it is about $85 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $104/yr, the Mora MRB221N6AWE uses 11% less energy.
What drives its running cost
At 22.3 cu ft, the Mora MRB221N6AWE is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, among refrigerator models, bigger capacity is the most common reason a running-cost figure lands on the high side, all else being equal.
- 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.
- 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.
- 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 Mora MRB221N6AWE cheap to run?
Its $93/yr running cost, rank #748 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 Mora MRB221N6AWE cost per month?
About $7.75 a month, which is the $93 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: 501 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $93 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Mora MRB221N6AWE for its size?
84th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 748 | Hisense HRB221N6AWE22.3 cu ft | $93 |
| 747 | Kitchenaid KRBX102E****22.1 cu ft | $93 |
| 746 | Kitchenaid KRBL102ESS**22.1 cu ft | $93 |
| 745 | Ilve URBM28SIWPRY12.6 cu ft | $93 |
| 744 | Thermador T30IB900SP16 cu ft | $92 |
Source
ES_1110877_MRB221N6AWE_061220230359826_5568159View certified refrigerator listingsENERGY STAR data as of July 2026Mora and MRB221N6AWE 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.