Lenovo 30E1: $9 a year to run
This model (Computers) uses 41 kWh of electricity a year, which costs about $9 a year and $86 over 10 years at 21.0¢/kWh.
Energy use
41 kWh
per year
Running cost per year
$9
21.0¢/kWh
Running cost over 10 years
$86
Efficiency rank
1,470 / 1,748
Product details
| Type | Workstation |
|---|---|
| Available since | March 21, 2022 |
Compared with the average model (Computers), this one costs about $4 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| ASUS Pro ER100A B6 | 41 | $9 |
| Ace Computers VP-98RW8I | 40 | $8 |
| ASUS Pro ET500I W8 | 40 | $8 |
| Lenovo 30KN | 38 | $8 |
| ASUS Pro ET500I W8-D | 35 | $7 |
| Lenovo ThinkStation P3 Tower Gen 2(30HT) | 33 | $7 |
| CIARA KRONOS 540-G2 | 32 | $7 |
| Lenovo 30HT | 30 | $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