Trying to compare the Real world with the Game world its like comparing Tomatoes with Potatoes.
In the real world things work that way for a reason.
In the minecraft world things work that way because of the dev team. The dev team could make gravity become gravy sauce if they want! Nerfing the Green Gens is NOT impossible and doing so would be a choice in design to make the game more enjoyable to everyone else. STOP trying to force feed that staying true to "Realistic" system because Realism its worth crap, we are playing a game and if stuff creates a rift that could make the game less enjoyable for the people then that stuff have to be dealt with, either by getting rid of it or making it less of what it actually is.
Once again, STOP with claiming realism every single turn for every potential nerf. If its OP it has to be dealt with realistic or not. If you have any other reason besides "Realism!" to not nerf the generators then im all hears, if that is the only excuse im going to keep hearing in every single post then i won't bother reading anymore of those either.
(And no before any genius think about it, i have never ever have defended realism to the point i would take a bullet for it, at best i have defended the point of making the game stay more industrialish which is the theme of this mod not frigging realism)
@Above: iirc making solar panel collect a opaque layer of something (snow, dirt, etc) have already been suggested several times as a possible solution to make worry free generators stop being worry free (At least in the case of solars)