DELL Precision 7780: $7 a year to run
This model (Computers) uses 35 kWh of electricity a year, which costs about $7 a year and $73 over 10 years at 21.0¢/kWh.
Energy use
35 kWh
per year
Running cost per year
$7
21.0¢/kWh
Running cost over 10 years
$73
Efficiency rank
1,418 / 1,748
Product details
| Type | Mobile Workstation |
|---|---|
| Battery capacity (Wh) | 93.0 |
| Available since | March 23, 2024 |
Compared with the average model (Computers), this one costs about $2 more a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| DELL Precision 7680 | 29 | $6 |
| DELL MB18250 | 28 | $6 |
| HP HSN-Q41C | 27 | $6 |
| DELL MA16250 | 23 | $5 |
| DELL Precision 5690 | 23 | $5 |
| DELL Precision 5490 | 21 | $4 |
| DELL Dell Pro Precision 7 14 PW714260 | 19 | $4 |
| DELL MA14250 | 16 | $3 |
- 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