dynabook PMM20*: $4 a year to run
This model (Computers) uses 20 kWh of electricity a year, which costs about $4 a year and $41 over 10 years at 21.0¢/kWh.
Energy use
20 kWh
per year
Running cost per year
$4
21.0¢/kWh
Running cost over 10 years
$41
Efficiency rank
1,214 / 1,748
Product details
| Type | Notebook |
|---|---|
| Battery capacity (Wh) | 53.0 |
| Available since | March 31, 2022 |
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| dynabook CED10* | 19 | $4 |
| Lenovo 21K9 | 19 | $4 |
| HP HSN-Q38C | 19 | $4 |
| Lenovo 21WX | 19 | $4 |
| GETAC V110 | 19 | $4 |
| HP HSN-I66C-4 | 19 | $4 |
| HP 14-kg | 19 | $4 |
| Lenovo ThinkBook 14 G8 IRL | 19 | $4 |
- Refrigerators
- Freezers
- Washing machines
- Dishwashers
- Tumble dryers
- Room air conditioners
- Dehumidifiers
- Water heaters
- Electric cooktops and ranges
- Televisions
- Air purifiers
Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology