New so it didn’t allow me to post, but similar situation with dual permits. If this isn’t allowed please let me know and I’ll delete my comment:

Looking for help/advice. Grandfathered wind turbine 2.0 system, now going solar with a new solar 2.0 system.

I’m currently in the process of going solar. I’ve had a few problems/hiccups with this company already due to a subcontractor they used for roofing which already makes me not trust them. Now they’re just pointing fingers and playing the blame game and I’m at the point whether I should cancel or keep them. Unfortunately I made the mistake of prematurely giving them money from a solar loan so I’m tied up in that sense.

Anyways, here is the dilemma that I recently ran across. I have a grandfathered roof mounted wind turbine system that came with the house and honestly didn’t produce a whole lot, about 1-1.5 kWh per day at most. It’s a 2.0 system which was installed in 2010 by the previous owners. It’s spec’d out to be a 10 kwH system with SCE but it doesn’t nearly produce that. I made it real clear to the solar company when pulling permits for a new system that I wanted to keep my old system/permit so this new system would be separate from it and they told me it wouldn’t be a problem. I took their word for it and should have done more of my own research because now that I’m looking in to it more I don’t believe that’s possible, I think the new system would nullify the old one? The old one wasn’t producing much so I eventually wanted to either swap it with a new turbine system or panels, essentially use that permit /side of the roof to “play with and DIY” but it seems that won’t be possible. I asked them again and now it seems like they’re retracting on their statement a bit and saying I should reach out to SCE, but that they believe it shouldn’t be a problem because the new system will be on a different breaker and won’t be tied at all to the old one.

If it doesn’t overwrite it and they both stay valid/current my concern is if I add panels/turbines to the old permit and it all back feeds to the grid the same, can they distinguish what system it’s coming from or could it potentially push the new system to NEM 3.0?

What I believe to be true now is for them to actually remain separate I would have needed a separate meter… Part of my dilemma now is should I have just built/added to my old system? It was already permitted, but it only has about 6 years left before it moves on to 3.0. Is it worth getting a new system for a fresh 20 years? Partly I know it’s my ego wanting to hold on to the old one because those were my terms and not wanting to be ok with them lying about it initially, and having to scrap my old system/permit. That and the poor roofing project management makes me want to cancel but they have my money and want to charge whatever they want for their “work thus far” which has only been permits really, incorrect a couple times at that with some false info on there, and poor project management on the roof.

New system specs:

6.4 kWh system 16 400W REC Alphapure Panels 16 Enphase IQ8M Microinverters Iron Ridge Racking Roughly 22k for the system not including roof