Model
Elisii DERTM180SW2
Rank #559 means 558 of the 1,000 refrigerator models we track cost less to run each year; the 90th efficiency percentile means it uses less energy for its size than 90% of those models.
What does the Elisii DERTM180SW2 cost to run per year?
The Elisii DERTM180SW2 holds rank #559 of 1,000 on running cost, at about $67 a year, an unremarkable but typical figure for the class. It uses 10% less energy than the U.S. federal standard model in its class, which would cost about $75/yr to run, a saving of roughly $8 a year. Its size-adjusted efficiency percentile of 90 sits well above the class median, a clearly above-average efficiency result. This class has no published efficiency-factor figure beyond annual kWh itself, so at 18 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 Criterion 453-8145 at $67/yr runs a little cheaper and the Elisii DERTM181WW4 at $67/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 Elisii DERTM180SW2's $67/yr adds up to roughly $804 in electricity alone, before purchase price or repairs.
Also sold as: Criterion 18TMF-B.
By the numbers
The Elisii DERTM180SW2 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 $67/yr, here is what the Elisii DERTM180SW2 adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Elisii DERTM180SW2 costs about $670. That is roughly $80 less than a standard model in its class, which would run closer to $750 over the same ten years.
How the Elisii DERTM180SW2 compares
The refrigerator class we track runs from $8 to $149 a year. At $67/yr, it runs about $3 a year above the class median of $64, and it is about $59 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $75/yr, the Elisii DERTM180SW2 uses 10% less energy.
What drives its running cost
At 18 cu ft, the Elisii DERTM180SW2 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 Elisii DERTM180SW2 cheap to run?
Roughly, yes. Its $67/yr figure is close to the class median, ranking #559 of 1,000, neither a bargain nor a splurge on running cost.
How much does the Elisii DERTM180SW2 cost per month?
About $5.61 a month, which is the $67 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: 363 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $67 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Elisii DERTM180SW2 for its size?
90th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 560 | Criterion 453-814518 cu ft | $67 |
| 559 | Criterion 18TMF-B18 cu ft | $67 |
| 558 | Vissani MDTF18WHRES418 cu ft | $67 |
| 557 | Sub-Zero DEC3650R**/*21.7 cu ft | $67 |
| 556 | Sankey RF 1963 SS18 cu ft | $67 |
Source
ES_1142511_DERTM180SW2_050820230341884_8417749View certified refrigerator listingsENERGY STAR data as of July 2026Elisii and DERTM180SW2 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.