I think the difference in energy consumption between storage devices and GPU miners is being significantly downplayed here. While a good bit of energy has to be consumed to generate the plots, the benefit is that once completed the storage devices may sit idle in a much more energy efficient farming machine (and for quite literally forever).

As of right now the network is only a very small percentage of the global storage market, so it is hard to imagine any impact on chip supply chains, but of course there is no telling what stress could be brought in the future as the network grows, we will have to see.

However in a time when energy usage and carbon footprint are being used as direct attacks to "cancel" cryptocurrency (which are legitimate concerns, not only just about "cancelling" crypto), I can't help but wonder if Chia is in the place to completely change the game with adoption of proof of space.

https://chiapower.org/