Model
Insignia NS-RBM11**2
Rank #623 means 622 of the 1,000 refrigerator models we track cost less to run each year; the 41st efficiency percentile means it uses less energy for its size than 41% of those models.
What does the Insignia NS-RBM11**2 cost to run per year?
At about $73 a year, the Insignia NS-RBM11**2 costs more to run than most refrigerator models we track, rank #623 of 1,000. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $82/yr to run, a saving of roughly $9 a year. Efficiency-wise, once size is accounted for, it sits right around the class median, ahead of 41% of the models we track. This class has no published efficiency-factor figure beyond annual kWh itself, so at 11.5 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 Verona VEFTF3021RSL at $73/yr runs a little cheaper and the Midea MRB12B1*** at $73/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 Insignia NS-RBM11**2's $73/yr adds up to roughly $876 in electricity alone, before purchase price or repairs.
Also sold as: Midea MRB12B1***.
By the numbers
The Insignia NS-RBM11**2 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 $73/yr, here is what the Insignia NS-RBM11**2 adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Insignia NS-RBM11**2 costs about $730. That is roughly $90 less than a standard model in its class, which would run closer to $820 over the same ten years.
How the Insignia NS-RBM11**2 compares
The refrigerator class we track runs from $8 to $149 a year. At $73/yr, it runs about $9 a year above the class median of $64, and it is about $65 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $82/yr, the Insignia NS-RBM11**2 uses 10% less energy.
What drives its running cost
At 11.5 cu ft, the Insignia NS-RBM11**2 is a mid-size refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, neither the size advantage of a small unit nor the size penalty of a large one applies here, so its running cost is a fairer test of efficiency alone.
- 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 Insignia NS-RBM11**2 cheap to run?
Its $73/yr running cost, rank #623 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 Insignia NS-RBM11**2 cost per month?
About $6.11 a month, which is the $73 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: 395 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $73 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Insignia NS-RBM11**2 for its size?
41st 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 |
|---|---|---|
| 622 | Verona VEFTF3021RSL20.7 cu ft | $73 |
| 621 | Midea HD-774**21 cu ft | $73 |
| 620 | Kitchenaid KBBX102MPA8.8 cu ft | $73 |
| 619 | Avanti AVFF21DLJM#**21 cu ft | $73 |
| 618 | Summit FF1141W10.8 cu ft | $73 |
Source
ES_1059185_NS-RBM11**2_032520260023601_7332220View certified refrigerator listingsENERGY STAR data as of July 2026Insignia and NS-RBM11**2 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.