Model
Midea MRM45D5BST
Rank #464 means 463 of the 1,000 refrigerator models we track cost less to run each year; the 16th efficiency percentile means it uses less energy for its size than 16% of those models.
What does the Midea MRM45D5BST cost to run per year?
At $61 a year to run, the Midea MRM45D5BST sits close to the middle of its class on cost, ranking #464 of 1,000 refrigerator models we track. It uses 11% less energy than the U.S. federal standard model in its class, which would cost about $68/yr to run, a saving of roughly $7 a year. Its 16th size-adjusted efficiency percentile is well below the class median, worth weighing against the raw cost figure above. At 4.5 cu ft, it is a small refrigerator for the class, which runs 1.2 to 31.7 cu ft; size and efficiency are the two levers behind the figure above, and this dataset does not carry a separate efficiency-factor column for this class.
Immediately around it on the leaderboard, the Midea MRM45B2ASL at $61/yr runs a little cheaper and the Galanz GLR46BRDR12 at $61/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 Midea MRM45D5BST's $61/yr adds up to roughly $732 in electricity alone, before purchase price or repairs.
Also sold as: Arctic King ARM45D5ASL.
By the numbers
The Midea MRM45D5BST 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 $61/yr, here is what the Midea MRM45D5BST adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Midea MRM45D5BST costs about $610. That is roughly $70 less than a standard model in its class, which would run closer to $680 over the same ten years.
How the Midea MRM45D5BST compares
The refrigerator class we track runs from $8 to $149 a year. At $61/yr, it runs about $3 a year cheaper than the class median of $64, and it is about $53 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $68/yr, the Midea MRM45D5BST uses 11% less energy.
What drives its running cost
At 4.5 cu ft, the Midea MRM45D5BST is a small refrigerator for its class, which spans 1.2 to 31.7 cu ft with a median of 12.6 cu ft, and smaller refrigerator models generally cost less to run for the same job, all else being equal.
- Interior volume. Cubic feet of interior volume is the first thing that scales a fridge's running cost up or down, before compressor quality even enters the picture.
- Counter depth vs standard depth. Counter-depth models sit flush with cabinets but usually hold less interior volume than a standard-depth model of the same width, which can nudge the per-cubic-foot running cost either way.
- Compressor technology. Newer variable-speed (inverter) compressors modulate output instead of cycling fully on and off, which tends to use less energy for the same cooling job than an older fixed-speed compressor.
- Placement and ventilation. A fridge pushed tight against a wall or cabinet, or standing next to an oven or in direct sun, works harder to shed the heat its compressor produces, which can push real-world cost above the published figure.
Common questions
Is the Midea MRM45D5BST cheap to run?
It is about average. At $61 a year it ranks #464 of 1,000 refrigerator models we track, close to the middle of its class on running cost.
How much does the Midea MRM45D5BST cost per month?
Roughly $5.09/mo, spreading the $61/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 329 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $61 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Midea MRM45D5BST for its size?
16th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 467 | Midea MRM45B2ASL4.5 cu ft | $61 |
| 466 | Magic Chef HVDR430SE4.3 cu ft | $61 |
| 465 | Frigidaire FRPE4536AV4.5 cu ft | $61 |
| 464 | Arctic King ARM45D5ASL4.5 cu ft | $61 |
| 463 | Marathon MCR47W4.7 cu ft | $61 |
Source
ES_1030337_MRM45D5BST_07142025114703_80261693View certified refrigerator listingsENERGY STAR data as of July 2026Midea and MRM45D5BST 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.