Marathon MFF1820W: $77 a year to run
This model (Refrigerators) uses 366 kWh of electricity a year, which costs about $77 a year and $769 over 10 years at 21.0¢/kWh.
Energy use
366 kWh
per year
Running cost per year
$77
21.0¢/kWh
Running cost over 10 years
$769
Efficiency rank
2,650 / 4,667
11 % less energy than the federal minimum standard.
Product details
| Type | Top Freezer |
|---|---|
| Total volume (cu ft) | 18.2 |
| Adjusted volume (cu ft) | 21.7 |
| Federal standard (kWh/year) | 409 |
| ENERGY STAR Most Efficient | Yes |
| Available since | September 15, 2026 |
Compared with the average model (Refrigerators), this one saves about $4 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Avanti AVFF18DLJ#** | 365 | $77 |
| Conservator GRLH181AW | 365 | $77 |
| GE GTE18MSR**** | 365 | $77 |
| GE GTE18MTR**** | 365 | $77 |
| GE GTE18NSW**** | 365 | $77 |
| GreenLine GLFFR18W | 365 | $77 |
| Kenmore 6231# | 365 | $77 |
| Kenmore 899.6231#32# | 365 | $77 |
- 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