TL;DR one side gets hot, while the other gets not very cold
So in order for the very hot side to not heat up the cold side, negating the cooling effect, you have to have a whole water cooled noctua 480mm fan assembly cooling that 2 cm*2 surface, just so that thingy can get to like 10C
Also, it’s by definition impossible for it to have better than 100% cooling efficiency, which is already the norm for refrigeration-cycle-driven machines.
There are niche applications where it can be the right answer, but no amount of improvement to this specific technology will ever make this as good as existing refrigerators.
TL;DR one side gets hot, while the other gets not very cold
So in order for the very hot side to not heat up the cold side, negating the cooling effect, you have to have a whole water cooled noctua 480mm fan assembly cooling that 2 cm*2 surface, just so that thingy can get to like 10C
Also, it’s by definition impossible for it to have better than 100% cooling efficiency, which is already the norm for refrigeration-cycle-driven machines.
There are niche applications where it can be the right answer, but no amount of improvement to this specific technology will ever make this as good as existing refrigerators.