Lenovo 13A4: $6 a year to run
This model (Computers) uses 31 kWh of electricity a year, which costs about $6 a year and $65 over 10 years at 21.0¢/kWh.
Energy use
31 kWh
per year
Running cost per year
$6
21.0¢/kWh
Running cost over 10 years
$65
Efficiency rank
1,385 / 1,748
Product details
| Type | Desktop |
|---|---|
| Available since | March 15, 2025 |
Compared with the average model (Computers), this one costs about $1 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| ALTOS BrainSphere P10 F10 | 31 | $6 |
| Apple A3389 | 31 | $6 |
| Lenovo ThinkCentre M970T | 31 | $6 |
| Lenovo ThinkCentre M970s | 31 | $6 |
| UltrArmor UA7 | 30 | $6 |
| Acer D26U10** | 30 | $6 |
| HP HSC-Q006TC | 29 | $6 |
| MSI Cubi 5 1M | 29 | $6 |
- 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