Apple A3240: $2 a year to run
This model (Computers) uses 8 kWh of electricity a year, which costs about $2 a year and $17 over 10 years at 21.0¢/kWh.
Energy use
8 kWh
per year
Running cost per year
$2
21.0¢/kWh
Running cost over 10 years
$17
Efficiency rank
97 / 1,748
Product details
| Type | Notebook |
|---|---|
| Battery capacity (Wh) | 0.0 |
| Available since | March 5, 2025 |
Compared with the average model (Computers), this one saves about $3 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Acer CBOA314-1H | 8 | $2 |
| ASUS CM1405CM4A | 8 | $2 |
| dynabook PQU40* | 8 | $2 |
| Gateway CBO314-1H | 8 | $2 |
| Lenovo (1) IdeaPad Slim 5 Ultra 14IWC11 | 8 | $2 |
| Microsoft 2036 | 8 | $2 |
| Samsung NP740VJG | 8 | $2 |
| Acer R756T | 8 | $2 |
- 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