Whenever you go to a different dimension, the power always gets reset to 0.

Also, when you perform surgery, it gets reset to 0. I don't know if that is intended or not. It shouldn't reset to 0 if it hasn't been changed.

Cannot replicate either issue on the newest build of the mod. Can you provide me with more details?

The dimension issue seems to only be with the ultra-dense capacitor. And the power resetting after surgery seems to be a Creative mode thing.

Hm. I tried creative and the capacitor and had issues with neither. Does the same thing happen on relog? During dimension switching and surgery the client and server data is resynced.

Fixed in 648210a (build 0.1.12)