Sub-Zero DEC2450R/*: $63 a year to run
This model (Refrigerators) uses 302 kWh of electricity a year, which costs about $63 a year and $635 over 10 years at 21.0¢/kWh.
Energy use
302 kWh
per year
Running cost per year
$63
21.0¢/kWh
Running cost over 10 years
$635
Efficiency rank
1,797 / 4,667
10 % less energy than the federal minimum standard.
Product details
| Type | Freezerless and Single Door |
|---|---|
| Total volume (cu ft) | 13.3 |
| Adjusted volume (cu ft) | 13.3 |
| Refrigerant | R-600a |
| Federal standard (kWh/year) | 335 |
| ENERGY STAR Most Efficient | No |
| Available since | September 26, 2022 |
Compared with the average model (Refrigerators), this one saves about $17 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Cafe CLE19RB*Z*** | 301 | $63 |
| GE Profile PLE19RB*Z*** | 301 | $63 |
| Monogram ZIR241NBR**** | 301 | $63 |
| Monogram ZIR241NPN**** | 301 | $63 |
| Monogram ZIR241NPP**** | 301 | $63 |
| Jenn-Air ALOVE24RRC0* | 300 | $63 |
| Jenn-Air JBRF*24IGX** | 300 | $63 |
| Fhiaba S240FR3U | 296 | $62 |
- 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