2.5A 5V is not much power, and it would use considerably less when idling.

125 watt hours for a raspberry pi to generate an image in 10 hours compared to 7 watt hours for a 440W PC to run for 1 minute.

Is this for a regular Pi . The OP post is using a Pi Zero 2.

That is big though

Dude, we are literally using single use plastic bottles to store water for a few weeks in them.

[delayed]

We are literally using LED lighting because it saves energy over conventional light bulbs.

And now we're going to put a screen on the wall that we don't even look at 99% of the time?

If we're doing one bad thing already, we may as well do a hundred!

Compared to what though?

I think it might be friendlier in some aspects than fetching an image from a server running the big the models.

And you don't have to worry about service disruptions or api keys

An e-ink display doing it should only use energy when refreshes. And you could minimize refreshes to once a day, week, etc

Less friendly than a photo of course.

Why do you say that? The energy usage of inference? I would guess that the embodied energy of the digital photo frame is probably higher.

That's where $1999 color E Ink display comes into play.

There are cheaper.. but it might require dithering..

Watch 5 seconds of a tv show with your big tv and you've spent that environmental cost