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24 450w panels - 11.8kw Front is 9' back is 21', roughly 60 degrees 6x6 posts connected to 900# concrete footings

1 8s 24v lifepo4 using 280ah cells and daly bms. Then another Then combined them to make a 16s 48v Then another... Then another... Besides the difference in price, I just enjoy building everything I can myself and having a deeper understanding of how it works so as to maintain and repair in...

As a landscaper I deal with old pressure treated wood all the time. The failure point is always right at the ground where the post meets the ground (typically 10 years), the rest of the post will be totally fine. With 6x6 posts connected to concrete with brackets, it will last for a very long time.

I used this ?

Well all the cells look good visually and all showed 3.31v. Charging up now in preparation for top balancing... I'll let you know in a week or two ?

Hooray! Now my wife can run her iron and microwave at the same time!!!

16kw.pv to 45kwh... 2.8:1. Last winter I was at 4.6kw pv and 30kwh, so closer to 7:1 and I had to run the generator a little every day to keep things going. My thought was that more than tripling the pv and adding 50% to the battery bank would allow me to get through the winter without needing...

Try disabling the low temperature cutoff. One of mine suddenly stopped charging and it was because it stopped reading the temperature incorrectly.

I'm using all Victron equipment currently, the 24/3000/70 x120 inverter and the 250/100 Smartsolar controller. My battery bank is two 24v LiFEPO4 at 280 AH each for 560AH total. Each battery has its own Daly 8S 24v 200A BMS. Everything has been running smoothly with the setup so far and Daly...

Yes that's correct, the AT splits the load between the legs so the two MPs are outputting the same power (within the range of the neutral which is 28a, outside of that the MPs will go out of balance, but it still makes a huge difference). And yeah I was thinking the same thing! Correct, it's...

Well I don't want to blow up the OP's thread, but here are a couple examples I found online: https://community.victronenergy.com/storage/attachments/18263-161319634-1865093586977962-8984529522506317620-n.jpg...

If you're interested, your proposed system is extremely close to my currently installed system: 4.6kw of solar on rooftop going to a single victron mppt 250/100 (4s3p, 160v/30a coming in) 11.5kw on ground mount array going to a victron mppt 450/200 (8s1p x3, 360v/10 x3 coming in, the victron...

I have the 100a AT doing load balancing for two MP 3000s in split phase configuration. The AT is much quieter than the MPs (which are fairly noisy), but I don't know if when using it to step down 230v to 120v it would behave differently than my application.

Just getting the cells up to a higher state of charge with a 12v charger before putting them in 16p configuration for top balancing with a dc power supply. Then they'll go into the box in 16s configuration with a jk bms.

Awesome. When did you install it?

Resetting the BMS rectified the issue.

I looked into this a while ago, having come from electrical engineering in the automotive industry I expected to find some sort of official "depinning" tool like what we use on circular bulkhead connectors. There's no such thing. I was pretty shocked and would love to be proven wrong but...

Well... I just put a little more effort into it, and based on this: A circular pin removal tool somewhere between 5.5 and 6.5mm should do it... https://www.amazon.com/dp/B0B2PGB3MN/ref=sspa_mw_detail_2?ie=UTF8&psc=1&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWw&th=1 I just ordered it so I'll...

This. I was doing a lot of swapping breakers around trying to balance out the loads so as to not put too much strain on one inverter. The real limits of my system were found this summer when trying to run the A/C in my camper while other loads around the property were being put on the system...

- If any PV wiring inside a structure need to be inside metal conduit, at what point can the wires exit the conduit for the final connections to the solar controller? For example my victron 250/100 simply has two screw terminals for the pv input. - My understanding from the victron manual is...

Is this a root cellar? Or a freeze protected battery house?

Insulated cabinet perhaps?

Great to know, makes me happy I ended up going with Victron!

I ended up getting a great price on Mission Solar panels from Platt.

I drove to Oregon to pick them up (no sales tax) and save the freight, ended up with the Mission Solar 385w panels for $306/ea. These are the all-black ones, they look pretty slick on my dark grey standing seam metal roof.

I have a practically brand new (used one month) Victron Multiplus II 24/3000/70 2x120 inverter that I'm swapping out when my 48/3000/35 comes in (switching to 48v system). I have the original box and everything... paid $1583 plus shipping.

I'm not sure, I'm totally off grid, but there were some people discussing that subject in the thread I linked above.

Currently I am using the charging settings recommended by Victron for my 48v Lifepo4 battery bank (3 sets of 16s 280ah cells): Absorption: 56.4v Float: 54.4v I have read and heard a number of times that for maximum battery life (number of charge cycles), the batteries should be charged no more...

Setup: 2x MPII in split phase configuration running to Autotransformer 100A for load balancing, feeding a main breaker panel in a shed. Neutral and Ground are bonded inside the main panel. The Autotransformer instructions say that the ground relay in the AT only should be used and the ground...

No it's completely off grid. Great, that's what I thought!