I just got back after several years and I see that this is still the best of the solar power mods from my perspective, even if there's been no updates.
If the purpose of a solar power mod is to be able to use solar power (at a minimally increased cost of materials) to save on space utilization, why do all of the other mods stop their tiers at 1000x? This is still the only one that allows placing solar in a small space and yet power a megabase.
I would recommend a small update or at least reply in the discussions, to silence the complaints about bugs and questions about whether it is still maintained (I noticed that you are still active, working on other mods). The "Redux" takeover/clone of this mod changed it so that it is now just as bad as the other power mods.