Hello,

My idea is to make that the Thermoelectric Generator generate only its maximum of RF/t at the height of the bedrock and generate less energy when placed above.

For example, it could generate full power at bedrock (around y=5) and generate no power at all at high altitude (round 60 or 100).

Because this generator is really too powerful at this moment.
Thank you in advance!

How does your idea work in the nether, ya know, cause bedrock is up and not down there...?

The nether has bedrock above and below, but more importantly they specified Y levels as well. I think a better question is how should it work in a literal hell dimension where water can't even exist in liquid form.

The generator could work at maximum everywhere in the nether because it's already hard to bring cold liquid there.

The generator is perfectly fine the way it is right now, I see no reason to nerf it. It's no more egregious than various other methods of power generation available in modded Minecraft. Also, it's output is adjustable in the config anyhow.