Recent content by zanydroid

Mandatory solar has been a thing for years. There’s not that much new construction in California. And they slammed solar with end of net metering, which was years after mandatory solar

My questions would be -- What is the AC size, DC size of those installations? Are they DC coupled or AC coupled? IIRC AC coupled is a lot more onerous than DC coupled. EG4's answer I think is fine as long as you are willing to wait for final PG&E approval of the plans (not PTO, I mean...

You need to qualify the feedback by the use case of the people talking about it. It's engineering, not religious tenets. If you have good design skills and knowledge of how to install, DC coupled hybrids have a lot of advantages over microinverters for a typical home-sized system If you're...

These acronyms are from regulations/UL standards. These are referenced in Rule21 (power company rules) ESS - Energy Storage System. Referenced in Rule21, building code (most onerous are in Residential Code - Section R328. Review carefully the system size limits and physical placement rules, &...

SGIP funds are limited / exhausted in a lot of areas unless you're under specific categories like equity resilience

Good luck with it. I think Fortress rebadged the luxpower

FWIW 200A bypass and the service bypass switch some people like to use with their solar installs really stacks up the equipment costs vs 100 or 125A MidNite One thread somewhat has an explanation from their engineers on why they picked 100A bypass

OK the MidNite One does not have 200A bypass so that is out. I suspect the 12kpv will not either, but EG4 also showed what looks like a Microgrid Interconnect Device (presumably 200A capable) at a convention last month so that would be a way to get the bypass. Along those lines maybe you can...

Annoying situation is if you pay $5k for an 18kpv and EG4 never gets their 💩 together with PG&E. What about installing an equivalent capacity of grid tie capacity with the cheapest grid tie inverter (might as well do 1:1 overpaneling, you have approval for that already), and switch to a hybrid...

Thanks, that makes a lot more sense. How much are these components?

In very very few worlds is switching to NEM3 a good deal. Under NEM2 there is a very, very long break even point to paying off a ESS. I calculated mine at 10 years using forced export to push out energy between 4-9PM. Not great. The PG&E rules for ESS are very complicated. It's quite possible...

OK, sounds a little aggressive, but I'll continue to help since you have a decent Linux shell understanding and seem to have done a lot of homework already. I was referring to the DC UPS that I bought, which was underspecced on 5V. If the 5V browned out for the RPi4 , then either I return it or...

What part of the puzzle do you see this board solving?

USB is not isolated at all (neither power nor data) so it behooves you to understand how to work around it. RS485 adapters are available in both isolated and non-isolated flavors. Given how low bandwidth it is, I'm still surprised that the standard recommendation isn't to always use isolated...

The size of this community sounds like it's smaller than a lot of utility-scale solar farms, so I think the solar can easily be centralized before being distributed back out again