dynabook PFR1#: $3 a year to run
This model (Computers) uses 17 kWh of electricity a year, which costs about $3 a year and $35 over 10 years at 21.0¢/kWh.
Energy use
17 kWh
per year
Running cost per year
$3
21.0¢/kWh
Running cost over 10 years
$35
Efficiency rank
1,036 / 1,748
Product details
| Type | Notebook |
|---|---|
| Battery capacity (Wh) | 56.1 |
| Available since | November 28, 2025 |
Compared with the average model (Computers), this one saves about $2 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| ASUS FA607NUQ | 16 | $3 |
| ASUS PM5606CGA | 16 | $3 |
| ASUS BM3606CHA | 16 | $3 |
| HP HSN-I63C-4 | 16 | $3 |
| HP 16-av | 16 | $3 |
| Lenovo ThinkBook 14 G7 IML | 16 | $3 |
| Lenovo IdeaPad Slim 3 16AHP10 | 16 | $3 |
| Lenovo ThinkBook 14 G7+ AHP | 16 | $3 |
- 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