Whirlpool WRTX7421T***: $84 a year to run
This model (Refrigerators) uses 398 kWh of electricity a year, which costs about $84 a year and $836 over 10 years at 21.0¢/kWh.
Energy use
398 kWh
per year
Running cost per year
$84
21.0¢/kWh
Running cost over 10 years
$836
Efficiency rank
2,945 / 4,667
10 % less energy than the federal minimum standard.
Product details
| Type | Top Freezer |
|---|---|
| Total volume (cu ft) | 21.3 |
| Adjusted volume (cu ft) | 25.9 |
| Refrigerant | R-600a |
| Federal standard (kWh/year) | 443 |
| ENERGY STAR Most Efficient | Yes |
| Available since | February 20, 2026 |
Compared with the average model (Refrigerators), this one costs about $3 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Conserv MDRF376-1150 | 397 | $83 |
| FULGOR MILANO FM4FBM24SS-BS | 397 | $83 |
| APPLIANCE BASICS HD774FWSS | 396 | $83 |
| GE GTE21GSH**** | 396 | $83 |
| GE GTE21GTH**** | 396 | $83 |
| Midea WHD-774FSSE1 | 396 | $83 |
| Midea WHD-774FW1 | 396 | $83 |
| Midea WHD-774FWE1 | 396 | $83 |
- Freezers
- Washing machines
- Dishwashers
- Tumble dryers
- Room air conditioners
- Dehumidifiers
- Water heaters
- Electric cooktops and ranges
- Televisions
- Computers
- Air purifiers
Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology