HP Z4 G6i Workstation: $14 a year to run
This model (Computers) uses 69 kWh of electricity a year, which costs about $14 a year and $145 over 10 years at 21.0¢/kWh.
Energy use
69 kWh
per year
Running cost per year
$14
21.0¢/kWh
Running cost over 10 years
$145
Efficiency rank
1,635 / 1,748
Product details
| Type | Workstation |
|---|---|
| Available since | March 30, 2026 |
Compared with the average model (Computers), this one costs about $9 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Ace Computers LC-F3XS2 | 67 | $14 |
| Lenovo 30G9 | 66 | $14 |
| HP Z4 Rack G5 Workstation | 65 | $14 |
| ASUS Pro ET500A B8 | 56 | $12 |
| HP Z6 G5 A Workstation | 55 | $12 |
| Supermicro AS -3015A-I | 53 | $11 |
| HP Z4 G5 Workstation | 45 | $9 |
| ASUS E500 G9 | 44 | $9 |
- 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