Comment by kylehotchkiss

2 days ago

https://support.apple.com/en-mn/guide/mac-help/mh40774/mac

This seems to be available as a first party config option

On macOS 26 DB running on M4 MacBook Air, I don't see power nap in that place. I see "Wake for network access" which might be the new thing and it's set to "Only on Power Adapter" by default.

  • The “Wake for network access” setting is not new. It’s been there for many years on both Intel and Apple Silicon MacBooks.

    “Power Nap” was an Intel-specific setting and isn’t shown on Apple Silicon Macs.

Edit 2: My bad, I assumed power nap == "wake for network access". This no longer seems to be an option in macOS 26.

Mine's set to "Only on Power Adapter", which makes sense.

Edit: On an M4 MacBook Air running macOS 26 DB

  • It's not the macOS 26, its the option is not available on Apple Silicon machines. I think it is always enabled.

    https://support.apple.com/en-mn/guide/mac-help/mh40774/15.0/...

    Turn Power Nap on or off for a Mac desktop computer On your Mac, choose Apple menu > System Settings, then click Energy in the sidebar. (You may need to scroll down.) Turn on Enable Power Nap. Note: This option is only available on Intel-based Mac computers.

    You can see (and change) the settings via Terminal, 'pmset -g' will show the current options.

  • On Apple Silicon it's not available under the battery settings, but you can still set it.

    > sudo pmset -a powernap 1

    -a is an option to set it for battery and plugged-in. If you want only either you can do -b for battery, -c for charger

    You can also check the settings with:

    > pmset -g

    • you can also use pmset to programmatically enable/disable low power mode (which i do when the battery gets too hot for my liking even before thermal throttling kicks in)