Model
Midea HS-507FWEN
Rank #105 means 104 of the 1,000 refrigerator models we track cost less to run each year; the 98th efficiency percentile means it uses less energy for its size than 98% of those models.
What does the Midea HS-507FWEN cost to run per year?
Among the 1,000 refrigerator models we track, the Midea HS-507FWEN's $39/yr running cost ranks it #105, comfortably in the cheap-to-run group. It uses 29% less energy than the U.S. federal standard model in its class, which would cost about $55/yr to run, a saving of roughly $16 a year. Few refrigerator models we track are more efficient for their size than this one; its size-adjusted efficiency percentile of 98 is near the top of the class. This class has no published efficiency-factor figure beyond annual kWh itself, so at 13.8 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 Ellipse EFVC14W at $39/yr runs a little cheaper and the Omnimax 3730-937 at $39/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 HS-507FWEN's $39/yr adds up to roughly $468 in electricity alone, before purchase price or repairs.
Also sold as: Ellipse EFVC14W.
By the numbers
The Midea HS-507FWEN 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 $39/yr, here is what the Midea HS-507FWEN 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 HS-507FWEN costs about $390. That is roughly $160 less than a standard model in its class, which would run closer to $550 over the same ten years.
How the Midea HS-507FWEN compares
The refrigerator class we track runs from $8 to $149 a year. At $39/yr, it runs about $25 a year cheaper than the class median of $64, and it is about $31 a year more than the cheapest refrigerator to run at $8. Against the US federal standard model for its class at about $55/yr, the Midea HS-507FWEN uses 29% less energy.
What drives its running cost
At 13.8 cu ft, the Midea HS-507FWEN 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, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class.
- 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 Midea HS-507FWEN cheap to run?
Yes. Its $39/yr running cost puts it at rank #105 of 1,000, below what most refrigerator models we track cost to run.
How much does the Midea HS-507FWEN cost per month?
About $3.26 a month, which is the $39 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: 211 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $39 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea HS-507FWEN for its size?
98th 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
Source
ES_1030337_HS-507FWEN_01062025163513_80236097View certified refrigerator listingsENERGY STAR data as of July 2026Midea and HS-507FWEN 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.