TLDR below.
How interesting - years ago when I was looking for a Chrome alternative I chose Brave but Vivaldi was a very close second. We've had our EV 2 years now. And we completely power our office with 2.2 kW LFP batteries from 4pm-9am, I get what you're saying about LLM power usage.
To train these models takes so much power that I read the companies of the next generation of LLMs are looking for dedicated power plants - there just isn't enough power. The amount of power spent on bitcoin is mind boggling as well (another topic). https://www.nnlabs.org/power-requirements-of-large-language-models/ - This article really sheds light on the cost of power used to train these things. And it's only going to exponentially increase. Almost everyone I know these days is using AI to assist with their work, research, and learn.
Sadly, I am guilty of using AI more than I thought I would as I find it useful at gathering information, being a sounding board, and helping me save time not having to drudge through pages to find information. Yes, it gets stuff wrong, and yes it is not perfect - but I do find it useful.
I think our Governments should be encouraged to invest into renewable and more clean forms of power (nuclear) because AI is going to be pushed further and further - and if we don't do it, some other nation will and use that AI for possibly nefarious reasons.
California - for example: http://www.caiso.com/TodaysOutlook/Pages/supply.html - massive amount of our power during the day comes from renewables and we store gigawatts to batteries for 4-5 hours after the sun goes down. But we pay for it - with some of the highest electric rates in the nation.
TLDR: Yes, AI uses a ton of power. I like Kagi's implementation of AI because it puts privacy first and doesn't sell my data (so if I use AI, I'd prefer to use it via Kagi's interface). Governments need to invest in renewable/cleaner power instead of asking everyone to use less (imo).