Stuff about "400% sun" and "150% sun"--then "only supplying 90% of the crystals".....
I was working with the Complex Construction Calculator at the time and ...oh!...Oh!!...OH!!! I get it now!
Every Sector has it's own solar output percentage that will effect how many e-cells a SPP will produce each hour--AND the number of crystals that will be needed to meet this higher demand

Geez----111 (game)days into my present game and I now understand why some of my self-sufficient Complexes are running out of crytals WAY too quickly.

Thanks yeni, for your post that finally knocked my few remaining brain cells around enough to finally make the connection.