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Business computersENERGY STAR certified

HP Chromebook 15.6 inch ENERGY STAR

8 GB notebook computer, model number 15a-nb.

Memory

8 GB

Processor

Intel i3-N305

Typical electricity use

11.4 kWh/yr

NPU installed

No

Of 980 certified notebook business computers, 295 have a lower typical electricity use than the HP Chromebook 15.6 inch ENERGY STAR (11.4 kWh/yr).

Its certified typical electricity use of 11.4 kWh/yr costs about $1.48 a year at 13¢/kWh.

Maker
HP
Model
HP Chromebook 15.6 inch ENERGY STAR
Model number
15a-nb
Type
Notebook
Processor
Intel i3-N305
CPU cores
8
Memory
8 GB
NPU installed
No
Storage
SDD
Screen
15.6 in
Battery
41 Wh
Operating system
Chrome OS
Marketed as a workstation
No
Typical electricity use
11.4 kWh/yr
Power in sleep
0.3 W
Power at long idle
1.8 W
Power when off
0.2 W
On the market since
May 2025
ENERGY STAR certified
3 Jun 2025

Certified under the same record

The maker lists these as the same machine or a variant of it: HP Chromebook 15.6"ENERGY STAR, 15a-nb, 15at-nb, HP Chromebook ENERGY STAR.

Source: ENERGY STAR certified business computers dataset, US EPA, record 4429353, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the HP Chromebook 15.6 inch ENERGY STAR

Certified business computers from other makers, same color class, within 20% of its speed.

ModelTypeProcessorMemoryTypical electricity use
Lenovo IdeaPad Duet 3 11IAN8NotebookPentium n2008 GB12.8 kWh/yr
ASUS E410KANotebookPentium8 GB10.3 kWh/yr
Acer N24H4***Notebooklntel� Pentium� Silver N60008 GB13.2 kWh/yr
DELL P33TNotebookN2008 GB9 kWh/yr
Lenovo IdeaPad Slim 3 14IAN8Notebooki3-N3058 GB10.2 kWh/yr
Lenovo IdeaPad Slim 3 15IAN8Notebooki3-N3058 GB8.5 kWh/yr

HP

More HP business computers

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HP OmniBook 5 14 inch Laptop AI PC ENERGY STARNotebookIntel Core 7 35016 GB9.2 kWh/yr
HP Fortis G2m 14 inch Chromebook ENERGY STARNotebookMediaTek Kompanio 54016 GB7.6 kWh/yr
HP Fortis G2m 11 inch Chromebook ENERGY STARNotebookMediaTek Kompanio 5408 GB6.5 kWh/yr
Fortis Flip G2m 11 inchNotebookMediaTek Kompanio 54016 GB6.3 kWh/yr
HP ProBook 4 G2iS 14 ENERGY STARNotebookCore 7 35032 GB9.2 kWh/yr
HSN-I70CNotebookRyzen AI Max+ PRO 495192 GB21.7 kWh/yr
HP Elite t655 Thin ClientDesktopR23148 GB26 kWh/yr
14c-cfNotebookSnapdragon X1E8010032 GB19.9 kWh/yr

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