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oh crap, thought it was 96v my bad!

But with the interlock breaker flipped to "solark" would I have the grid at the same time. Not sure I am understanding it. The normal way I understand an interlock is with a generator. It is either generator OR grid. Are you saying they make some other kind of interlock? Either way, nice to...

Sandi makes 50-250kw inverters that can run with grid assist function and won't backfeed. Prices are fair. Batteries are expensive for it (HV) but I would just say screw the batteries, and undersize the array to cover ~50-70% of your needs. Inverter will combine grid power with solar.

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I don't know, because I've heard some people say that there is no way to do it correctly, and others say that it can be done but is tricky. So I just thought I would throw this out there, because if you are worried about it, this might be a good compromise.

I left out the fuses for the batteries and the solar to make my crappy picture easier to read

Ok, that follows... I guess I was just confused single busbar vs something like charger---battery----car

So after some research it seems that the CCA base station for tigo draws 3-7 watts, so Tigo can't be used with solark's 12v power supply, unless there is another base station I'm not aware of, which is entirely possible.

> This thing was $7000-$8000 in 2011, which is equivalent to a unit $15k-18k today in terms of technology ?

Just a hypothetical here. From what I understand, the IQ8 microinverters, when installed with the "solar backup" option, has a auto-transfer switch installed before the meter, which disconnects you from the grid in case of a power outage, in order to supply your house with power from the...

I don't know about the transmitter, but the CCA is 3-7 watts, so def can't be used with a solark, and the CCA is what you need to be plugged into the inverter, not the TAP, which plugs into the CCA. Maybe the TAP is the one you are thinking of? Maybe I am just not understanding something though.

Found this really cool video of someone using an isolation transformer with a bunch of growatt5000es's and its probably the best video I have ever seen on the topic. Thought I would add it to the thread. I think it might even be the exact maddox transformer I linked earlier here

Update: So I still haven't figured out whether I can permit a self-installed off-grid solar system in Sarasota county, so once again, the top contender for my plan changes yet again... New plan: Use project solar (groan, I know) to install a cheap grid-tied tier one system of 11800 watts using...

That clicked it for me. Thanks. It has been bothering me over the last month or so. Hopefully this helps some other beginner out there too.

I think he means 8 panels wired in parallel, but judging from the "85v each panel" I am guessing there are two panels wired in series, for a 2p4s configuation, because I have never heard of a single panel with 85v, and sounds suspiciously like 2 40-50v panels in series.

Oh ok, I think I am starting to understand now. So grid into the main panel breaker is one way, and the backfed breaker with grid going through the solark to the backfed breaker is the other position. So cool! I wonder if I could figure out how to install one ?

You can connect two power-ins together to make a larger busbar correct? Pretty sure that is what I am looking at in your pic. Nice tip on the fuses. I had heard you could do it, but had no idea it was that simple.

So I guess I would need something like a 175amp breaker and the main 200amp breaker on the interlock. Can you go use both L1/L2 on an interlock like that? I would also have to see if I have enough room in the 200 amp panel to do this.

Pretty much exactly what my brain told me when it finally made sense.

In before growatt starts shipping every offgrid inverter with a "free chargeverter"

What's on sale? Link?

to be fair, they are *giving* you an extra charger now ?

I believe solark sell a 3 phase inverter.

Ok, I changed the price on FB marketplace down to $3250 so I am setting it here to $3000 even. I can bite $900 on the inverters. I made $1500 on the panels.

If you are not buying direct from the manufacterer (which I did not, and the vast majority of people never do), the best you can do is “is it in the original packaging, unopened.” If it makes people feel more comfortable for some reason, I can have my company sell it to you instead of me...

Plan would be to power off of the main panel at first with that 120/12v power supply it comes with. When I get around to ordering my batteries, I will power off of the 48v battery with a 12v conversion and use a contactor or two to make it work with the big red RSD button, but also kill the...

Oh yes, it is definitely parallel with the grid. When the three way transfer switch is in the "down" position, the neutral of the grid is not connected to the main panel because of the isolation transformer. Well, I guess it is by way of the long ground ran from knife switch ---> panel --->...

Nope. I am just spitballing, but I guess I could do some research on it.

I am on team Roko, and I welcome our new overlords with open arms.