Question about power grids and infinite smes power admin trick on a private server

Hosting a private server to explore the maps and learn the ropes with no pressure. I learned how to do the admin trick for infinite smes regeneration for a power grid. I’m just curious why even with the cheat keeping power on it seems to be flickering on and off nonstop. Guessing there’s more to powering the station then just keeping smes’s full. 

sorry for the absolute necromancy but are you infpowering ALL the smes?