Chest freezers typically draw 100–400 watts while running, cycling on and off to maintain sub-zero temperature. Like refrigerators, they run constantly, making even modest operating wattage add up over a year.
| Basis | Cost |
|---|---|
| Per hour (while running, 90 W typical) | $0.017 |
| Per day (24 h/day, 7/7 days) | $0.41 |
| Per month | $12.38 |
| Per year | $148.56 |
| Hourly range (small 60 W – large 130 W) | $0.011 – $0.024 |
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