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dynabook computer, ENERGY STAR certified

Dynabook Chromebook C11

4 GB two-in-one notebook computer.

Memory

4 GB

Processor

MT8186

Typical electricity use

7.5 kWh/yr

NPU installed

No

Of 9 certified two-in-one notebook business computers, 0 have a lower typical electricity use than the Dynabook Chromebook C11 (7.5 kWh/yr).

Its certified typical electricity use of 7.5 kWh/yr costs about $0.98 a year at 13¢/kWh.

Maker
dynabook
Model
Dynabook Chromebook C11
Type
Two-In-One Notebook
Processor
MT8186
CPU cores
8
Memory
4 GB
NPU installed
No
Storage
eMMC
Screen
11.6 in
Battery
35 Wh
Operating system
Chrome OS
Marketed as a workstation
No
Typical electricity use
7.5 kWh/yr
Power in sleep
0.3 W
Power at long idle
0.7 W
Power when off
0.1 W
On the market since
Dec 2025
ENERGY STAR certified
8 Dec 2025

Source: ENERGY STAR certified business computers dataset, US EPA, record 4517932, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

dynabook

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TECRA A60-PNotebookCore Ultra 7 36564 GB12.1 kWh/yr
TECRA A40-PNotebookCore Ultra 7 36564 GB11.5 kWh/yr
PORTEGE Z40L-PNotebookCore Ultra X9 388H64 GB10.3 kWh/yr
PORTEGE X30L-PNotebookCore Ultra 764 GB9.9 kWh/yr
PORTEGE X45W-MNotebookRyzen 7 Pro 25064 GB19.4 kWh/yr
SATELLITE PRO C50-KNotebookCore i332 GB17.6 kWh/yr
SATELLITE PRO C30-KNotebookCore i3, Core i732 GB13.3 kWh/yr

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