Hey,
I'd like to share my solar layout for 0.15 - not perfect, but "close enough" in tandem (yep, there are 2 blueprints):
I tried making it logistics friendly, since my previous setup:
16 Substations,
299/344 ratio and
3 tiles free at sides giving up to 6 tiles walking space - if you wanted to ...

Idea for expansion, probably, but probably there's no chance of implementing due to lack of available data outputs OR monitoring entities around structure without straining CPU to the fullest

working title - "Corrosion and Decay" (or "How I got suicidal playing Factorio" :D)

For Corrosion part - i ...