I'm currently playing a 7/7 game using the current beat (
documented here), and something I'm noticing is that I'm not noticing energy. At all.
In the very early game, it mattered. An AI raid that would take out an energy collector was a problem, particularly since I have Broken Golems on Medium and thus they consume massive amounts of power. But for the last 2/3 of the game (if not 3/4), I've been able to totally ignore it. In fact right now I'm pushing 1.7 million available energy, and that's with four golems (including a Botnet, which by itself is something like 200,000). Granted I do have a lot of planets, but I'm also running mk II of six different kinds of turrets, mk I and II Fotresses, mini forts everywhere, and not a single economic command station anywhere.
Is that unusual? Is it intended to just ignore energy in the later game? I like the new mechanic of energy collectors not consuming resources, but it seems like they're just putting out too much power. Once you get a few of them you can forget the whole mechanic exists.