Model
Lg LRMDC2306*
Rank #964 means 963 of the 1,000 refrigerator models we track cost less to run each year; the 43rd efficiency percentile means it uses less energy for its size than 43% of those models.
What does the Lg LRMDC2306* cost to run per year?
The Lg LRMDC2306* costs about $133 a year to run, near the very top of the cost table for its class at rank #964 of 1,000. It uses 5% less energy than the U.S. federal standard model in its class, which would cost about $139/yr to run, a saving of roughly $6 a year. Its size-adjusted efficiency percentile of 43 lands in the middle of the pack once capacity is accounted for. This class has no published efficiency-factor figure beyond annual kWh itself, so at 22.5 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 Whirlpool WRFF3536SW at $133/yr runs a little cheaper and the Cafe CVE28DM*NB** at $134/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 Lg LRMDC2306*'s $133/yr adds up to roughly $1596 in electricity alone, before purchase price or repairs.
By the numbers
The Lg LRMDC2306* 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 $133/yr, here is what the Lg LRMDC2306* adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Lg LRMDC2306* costs about $1330. That is roughly $60 less than a standard model in its class, which would run closer to $1390 over the same ten years.
How the Lg LRMDC2306* compares
The refrigerator class we track runs from $8 to $149 a year. At $133/yr, it runs about $69 a year above the class median of $64, and it is about $125 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $139/yr, the Lg LRMDC2306* uses 5% less energy.
What drives its running cost
At 22.5 cu ft, the Lg LRMDC2306* is a large refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up.
- 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 Lg LRMDC2306* cheap to run?
Its $133/yr running cost, rank #964 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 Lg LRMDC2306* cost per month?
About $11.07 a month, which is the $133 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: 716 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $133 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Lg LRMDC2306* for its size?
43rd 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 |
|---|---|---|
| 963 | Whirlpool WRFF3536SW30 cu ft | $133 |
| 962 | Maytag MRFF5336TZ30 cu ft | $133 |
| 961 | Frigidaire LGHB2869T*26.9 cu ft | $133 |
| 960 | Midea MRF32I6***31.7 cu ft | $133 |
| 959 | Maytag MFT2772HE*0*27.1 cu ft | $132 |
Source
ES_1118034_LRMDC2306*_12052019121659_80026954View certified refrigerator listingsENERGY STAR data as of July 2026Lg and LRMDC2306* 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.