Making an image with generative AI uses as much energy as charging your phone
(www.technologyreview.com)
That's ( fixed, messed up mah conversion) .1wh for a second of 3090 time/ 30 images a second.
If a 3090 drew 3 watt hours in 1/30th of a second it would melt.
Possibly off by one order of magnitude though... Editing post to see, and it looks like I was. 300 images per charge instead of 3000.