In compact size is only thing I can see some people having an issue with. I for one and my users have no issue with that but I could see others having it. But any server admin who actually runs a server of more then 2 people will all beg for the compact solar panels period. I'm sure xKillerbees been driving you guys crazy in the test forums for such a thing hehe.
I mean the only thing I can see is adding new chips into the game that are costly making having them compact really really costly and having them disabled by default in the config as well. Idk I just feel like its a needed thing but your other idea sort of sounds neat but will see. Most my players have already 4-8+ of the 512 compact Solar Panels. They know SP are to powerful and its all they make. So my whole world would be like covered 100% in solar panels lmao