You need to re-establish power, but Arachnowatts in the sector will cause problems...

Left-click to connect cables
Right-click to disconnect cables
WASD to scroll camera
Tab to switch to laser defence and back

Credits

Audio

Red Eclipse https://opengameart.org/content/red-eclipse-sounds

Sci-Fi SFX by https://chrislsound.itch.io/

Soundly Free Libraries