Mastodon Feed
If AI companies used a significant amount renewable energy, we'd definitely hear about it, and every piece of slop would have a green logo on it. The silence means they have nothing good to say.
When hardware uses a lot of energy, it can become instant junk when a more energy-efficient generation comes out, because the cost of (new hardware + less energy) can be less than (free hardware + more energy). The effect is so significant it even makes old PCs not worth using.