Despite adding energy collectors that collect enough energy to exceed static usage, I cannot remove the reactors without it complaining.

Do I really need reactors, if I don't have anything that uses energy actively and thus only static energy usage needs to be covered?

<t> So, I had the biggest pirate faction too close to me. Built up a matching size fleet, and went attacking. Now I've stolen their Galaxy Map, and destroyed all starbases I found (6 of them).<br/>
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Still, according to the diplomacy screen, they have about 20 pirate colonies left, and around ...