Model
Zephyr PRRFD24C2AP
Rank #470 means 469 of the 1,000 refrigerator models we track cost less to run each year; the 10th efficiency percentile means it uses less energy for its size than 10% of those models.
What does the Zephyr PRRFD24C2AP cost to run per year?
Among the 1,000 refrigerator models we track, the Zephyr PRRFD24C2AP's $61/yr running cost ranks it #470, close to dead center. It uses 18% less energy than the U.S. federal standard model in its class, which would cost about $75/yr to run, a saving of roughly $14 a year. Its size-adjusted efficiency percentile of 10 means the low running cost, where it exists, is driven almost entirely by capacity rather than efficiency. This class has no published efficiency-factor figure beyond annual kWh itself, so at 3.9 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 Galanz GLR46BRDR12 at $61/yr runs a little cheaper and the Avanti FF14V0W at $62/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 Zephyr PRRFD24C2AP's $61/yr adds up to roughly $732 in electricity alone, before purchase price or repairs.
By the numbers
The Zephyr PRRFD24C2AP 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 Zephyr PRRFD24C2AP adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Zephyr PRRFD24C2AP costs about $610. That is roughly $140 less than a standard model in its class, which would run closer to $750 over the same ten years.
How the Zephyr PRRFD24C2AP 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 $75/yr, the Zephyr PRRFD24C2AP uses 18% less energy.
What drives its running cost
At 3.9 cu ft, the Zephyr PRRFD24C2AP 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. 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 Zephyr PRRFD24C2AP cheap to run?
Roughly, yes. Its $61/yr figure is close to the class median, ranking #470 of 1,000, neither a bargain nor a splurge on running cost.
How much does the Zephyr PRRFD24C2AP cost per month?
About $5.1 a month, which is the $61 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: 330 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $61 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Zephyr PRRFD24C2AP for its size?
10th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 469 | Galanz GLR46BRDR124.7 cu ft | $61 |
| 468 | Midea MRM45D5BST4.5 cu ft | $61 |
| 467 | Midea MRM45B2ASL4.5 cu ft | $61 |
| 466 | Magic Chef HVDR430SE4.3 cu ft | $61 |
| 465 | Frigidaire FRPE4536AV4.5 cu ft | $61 |
Source
ES_1058337_PRRFD24C2AP_05302025134423_80255078View certified refrigerator listingsENERGY STAR data as of July 2026Zephyr and PRRFD24C2AP 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.