HP Z4 G5 Workstation: $9 a year to run
This model (Computers) uses 45 kWh of electricity a year, which costs about $9 a year and $94 over 10 years at 21.0¢/kWh.
Energy use
45 kWh
per year
Running cost per year
$9
21.0¢/kWh
Running cost over 10 years
$94
Efficiency rank
1,493 / 1,748
Product details
| Type | Workstation |
|---|---|
| Available since | March 6, 2023 |
Compared with the average model (Computers), this one costs about $4 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| ASUS E500 G9 | 44 | $9 |
| Lenovo 30E00006US | 44 | $9 |
| Lenovo 30E0 | 44 | $9 |
| Lenovo 30E1 | 41 | $9 |
| ASUS Pro ER100A B6 | 41 | $9 |
| Ace Computers VP-98RW8I | 40 | $8 |
| ASUS Pro ET500I W8 | 40 | $8 |
| Lenovo 30KN | 38 | $8 |
- 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