Lenovo computer, ENERGY STAR certified
Lenovo ThinkPad L16 Gen 1
64 GB notebook computer, model number 21L3.
Memory
64 GB
Processor
Core Ultra 7
Typical electricity use
22.7 kWh/yr
NPU installed
No
Of 980 certified notebook business computers, 946 have a lower typical electricity use than the ThinkPad L16 Gen 1 (22.7 kWh/yr).
Its certified typical electricity use of 22.7 kWh/yr costs about $2.95 a year at 13¢/kWh.
ENERGY STAR has certified this model 2 times, first in Apr 2025. The figures here are from the most recent certification.
- Maker
- Lenovo
- Model
- ThinkPad L16 Gen 1
- Model number
- 21L3
- Type
- Notebook
- Processor
- Core Ultra 7
- CPU cores
- 16
- Memory
- 64 GB
- NPU installed
- No
- Storage
- SDD
- Screen
- 16 in
- Battery
- 57 Wh
- Operating system
- Windows 11 Pro
- Marketed as a workstation
- No
- Typical electricity use
- 22.7 kWh/yr
- Power in sleep
- 1.2 W
- Power at long idle
- 1.2 W
- Power when off
- 0.5 W
- On the market since
- Apr 2024
- ENERGY STAR certified
- 15 Apr 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: 21L4.
Source: ENERGY STAR certified business computers dataset, US EPA, record 4015675, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the ThinkPad L16 Gen 1
Certified business computers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| HP HSN-I62C-3 | Notebook | Core Ultra 7 | 64 GB | 10.6 kWh/yr |
| HP HSN-I62C | Notebook | Core Ultra 7 | 64 GB | 11 kWh/yr |
| HP HSN-I62C-6 | Notebook | Core Ultra 9 | 64 GB | 19.8 kWh/yr |
| HP HSN-I62C-4 | Notebook | Core Ultra 9 | 64 GB | 15.6 kWh/yr |
| HP HSN-Q38C-4 | Notebook | Core Ultra 7 | 64 GB | 19.1 kWh/yr |
| HP HSN-Q38C | Notebook | Core Ultra 7 | 64 GB | 19.3 kWh/yr |
Lenovo
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|---|---|---|---|---|
| Lenovo V15 G7 Q7X | Notebook | C110100 | 16 GB | 8.2 kWh/yr |
| IdeaPad Slim 3 15Q7X11 | Notebook | C110100 | 16 GB | 7.8 kWh/yr |
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| ThinkCentre M75s Gen 6 | Desktop | Ryzen 7 | 64 GB | 50.5 kWh/yr |
| ThinkCentre M75t Gen 6 | Desktop | Ryzen 7 | 64 GB | 53 kWh/yr |
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| ThinkCentre M75q Gen 6 | Desktop | Ryzen 7 | 64 GB | 36 kWh/yr |
| Yoga Pro 9 15N1X11 | Notebook | NVIDIA RTX Spark N1x (6144-core GPU, 20-core CPU) | 128 GB | 23.4 kWh/yr |