Oh, don't get me wrong, I really like that you can pause incomplete buildings.
I'm sure I'm going to use it quite a bit. I was worried after initially suggesting it about the potential for abuse. Perhaps enemies should still go after incomplete buildings that are far enough along?
I understand your reluctance to add no-power variants of the constructors; that's reasonable, so no worries there. No-resource reactors would be a really great capturable, though, in my opinion, making the world much more appealing from a resource perspective (free energy). Might not be worth the work, but I see that as being a really worthwhile capturable ship that I'd go to some effort to protect when taking a planet.
I like your thoughts on no-power-mode for ships; no shields sounds really neat. Have you thought about significantly reducing 'paused' ships' power use instead of eliminating it, though? A small footprint for paused units might be neat, with them maybe using 10% of their normal power use or something. I worry about the player being able to have too big of a paused infrastructure sitting around, particularly for uncapped units, without cost so that they can just make it all start up just when they want and only incur costs then.
Anyway, about to try the new version now. Should be neat.