Adds new power structures.
Mods introducing new content into the game.
Changes to power production and distribution.
What's the difference?
there's a restriction on heat pipes that only let so much heat through at a time. the T2 doubles it, the T3 tripples it.
Other than that, they're just an intermediate, a component to be used in crafting the T2 and T3 reactor and heat exchanger.
Thanks!