Stirling Refrigerators: energy use and running cost
The average model uses 384 kWh a year, which costs $81 a year at 21.0¢/kWh.
Most efficient models
| Model | kWh/year | Cost/year |
|---|---|---|
| Stirling S4-100PANR | 134 | $28 |
| Stirling S4-100SS | 134 | $28 |
| Stirling S4-125PANR | 134 | $28 |
| Stirling S4-150PANR | 134 | $28 |
| Stirling S4-150SS | 134 | $28 |
| Stirling S4-D200PANR | 134 | $28 |
| Stirling S4-D200SS | 134 | $28 |
| Stirling S4-D225PANR | 134 | $28 |
| Stirling S4-D225SS | 134 | $28 |
| Stirling S4-D250PANR | 134 | $28 |
| Stirling S4-D250SS | 134 | $28 |
- 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