Model
Cosmo COS-RFFV283GHBK
Rank #887 means 886 of the 1,000 refrigerator models we track cost less to run each year; the 82nd efficiency percentile means it uses less energy for its size than 82% of those models.
What does the Cosmo COS-RFFV283GHBK cost to run per year?
The Cosmo COS-RFFV283GHBK costs about $117 a year to run, well up the cost table for its class at rank #887 of 1,000. It uses 12% less energy than the U.S. federal standard model in its class, which would cost about $130/yr to run, a saving of roughly $13 a year. Size-adjusted, this model beats 82% 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 27.4 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 BCD-740WPZR/HC at $117/yr runs a little cheaper and the Farberware FW-FRF192 at $117/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 Cosmo COS-RFFV283GHBK's $117/yr adds up to roughly $1404 in electricity alone, before purchase price or repairs.
Also sold as: Farberware FW-FRF192, Icyber Boom RHBX9001.
By the numbers
The Cosmo COS-RFFV283GHBK 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 $117/yr, here is what the Cosmo COS-RFFV283GHBK adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Cosmo COS-RFFV283GHBK costs about $1170. That is roughly $130 less than a standard model in its class, which would run closer to $1300 over the same ten years.
How the Cosmo COS-RFFV283GHBK compares
The refrigerator class we track runs from $8 to $149 a year. At $117/yr, it runs about $53 a year above the class median of $64, and it is about $109 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $130/yr, the Cosmo COS-RFFV283GHBK uses 12% less energy.
What drives its running cost
At 27.4 cu ft, the Cosmo COS-RFFV283GHBK 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 Cosmo COS-RFFV283GHBK cheap to run?
Its $117/yr running cost, rank #887 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 Cosmo COS-RFFV283GHBK cost per month?
About $9.74 a month, which is the $117 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: 630 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $117 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Cosmo COS-RFFV283GHBK for its size?
82nd 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 |
|---|---|---|
| 886 | Hisense BCD-740WPZR/HC26.6 cu ft | $117 |
| 885 | Bertazzoni RFD36FZNX26.2 cu ft | $116 |
| 884 | Midea MRS25I7***24.6 cu ft | $116 |
| 883 | Midea MRF23I8***22.6 cu ft | $115 |
| 882 | Samsung RF70F23DE*22.9 cu ft | $115 |
Source
ES_1141090_COS-RFFV283GHBK_051320250026158_9657504View certified refrigerator listingsENERGY STAR data as of July 2026Cosmo and COS-RFFV283GHBK 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.