Could someone elaborate on this point for this newbie? Compact Solars does not seem to have any flavor of OP involved, as it requires extra resources to get the same amount of EU in less space. I suppose there's a debate to be had whether the transformers are more or less valuable than the tin cabling they replace. Tin cabling for 512 original solar panels takes a stack of tin, one HV Solar Array producing the same EU as 512 original panels costs those 512 original panels plus 269 copper, 154 rubber, a diamond, 10 redstone, and 73 refined iron.
I am very interested in the comparison between the two because I am running a private server for me and my pals, and balance is a concern of mine.
Imagine ONE Block that needs line of sight to sky to function, and now imagine 512 of them. The visibillity is pretty much intended, because Space is also a rare Good in Minecraft, even if the World is Infinite, and a secret Base powered by one HV-Solar instead of 512 single Solars is pretty much invisible.
You could also imagine the ton of Blocks compressed into a single Block. Pretty unrealistic even for MC, huh?
One single Block produces effective 256 EU/t (in Deserts) without doing anything, that would give you even more Solarusers, even if Solar is THE WORST (except Unmanned Water) Energysource of whole IC², and why should the worst Energysource get used as much as that?