CTL computer, ENERGY STAR certified
CTL PX121E
8 GB notebook computer.
Memory
8 GB
Processor
N250
Typical electricity use
8.6 kWh/yr
NPU installed
No
Of 980 certified notebook business computers, 55 have a lower typical electricity use than the PX121E (8.6 kWh/yr).
Its certified typical electricity use of 8.6 kWh/yr costs about $1.12 a year at 13¢/kWh.
- Maker
- CTL
- Model
- PX121E
- Type
- Notebook
- Processor
- N250
- CPU cores
- 4
- Memory
- 8 GB
- NPU installed
- No
- Storage
- SSD
- Screen
- 12.2 in
- Battery
- 41 Wh
- Operating system
- Google Chrome OS 135.0.7049.0 x64
- Marketed as a workstation
- No
- Typical electricity use
- 8.6 kWh/yr
- Power in sleep
- 0.4 W
- Power at long idle
- 1.2 W
- Power when off
- 0.3 W
- On the market since
- Jun 2025
- ENERGY STAR certified
- 23 Jun 2025
Source: ENERGY STAR certified business computers dataset, US EPA, record 4439168, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the PX121E
Certified business computers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| Lenovo IdeaPad Duet 3 11IAN8 | Notebook | Pentium n200 | 8 GB | 12.8 kWh/yr |
| HP Chromebook 14 G6 ENERGY STAR | Notebook | Celeron N4120 | 8 GB | 9.1 kWh/yr |
| ASUS E410KA | Notebook | Pentium | 8 GB | 10.3 kWh/yr |
| Acer N24H4*** | Notebook | lntel� Pentium� Silver N6000 | 8 GB | 13.2 kWh/yr |
| DELL P33T | Notebook | N200 | 8 GB | 9 kWh/yr |
| Lenovo IdeaPad Slim 3 14IAN8 | Notebook | i3-N305 | 8 GB | 10.2 kWh/yr |
CTL
More CTL business computers
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| PX112C-L | Notebook | N250 | 8 GB | 10.3 kWh/yr |
| CTL Chromebook NL73-**** Gen 2 | Notebook | Intel N150 | 8 GB | 8.1 kWh/yr |
| CTL Chromebook NL73T***** Gen 2 | Notebook | Intel N250 | 8 GB | 8.7 kWh/yr |