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well i guess i'm finally an elite at SOMETHING...

hey all, newbie here. i'm about in the middle of building my giant solar/battery setup. its comprised of 2 systems: ~12kw panels+160kwh batteries for the house, and ~53kw panels+~500kwh batteries for my shop/barn. last fall i got my small system panels installed on the barn, 30 440w sunpal...

121kwh of storage online! Waiting for more BMS’s to come in as well as pick up 8 floating cells from work to complete 2 groups that are the odd ones out from the whole pack. I haven't been ignoring your guy's recommendations, will be ordering better breakers and more fuses to install on each...

Looks like most of my troubles with the inverter are behind me finally! Some satisfaction seeing this now

6, current wiring is not quite representative, complicated to explain, lol i took both of the shunts that didnt work to a local victron distributor/installer. they checked them, they're bad. he said he's never seen 1 go bad, much less 2 in a row... picked up the non ip65 version from him that...

it USED to be that... not anymore, unless you stashed away millions. as someone thats lived in cali for 2 decades, the only reason i go back there is to see family a few times a year, other than that - fuck that place to all hell and back.

i've pulled 10 12ga wires 350ft through 1" conduit, never again...

been on a video call with SRNE, apparently you have to hit the firmware upgrade button within 5 seconds of powering on the inverter. was able to flash the firmware. still going through some issues, but at least its not dead!

First real day of sun, most I've ever gotten in a day, this is the small system for the house. Did some work in the yard cleaning out the area where the ground mount will go. Got some more dirt coming in tomorrow to level it out, then start layout and dig for concrete pylons

That is a thing of beauty! I can't wait to get my 50kw array up

in an ideal world... this entire project seems to have been a 'lets fuck empowered every step of the way, every way possible' lol

153kwh of backup is online now for the house. need 1 more bms to get the last group online. next week.

Making 2 4s packs to connect to the remaining left over 12 cells in each of my big packs. Perks of working at a battery mfg company!

Did a little bit more work on the pad for the ground array today. Hopefully start laying out where to drill the holes in a week or so

It has been resurrected!

this shit is so dishonest and pathetic... do they think everyone in the world is a 3 yr old child? so condescending...

i see you've already reached out to them, sorry just catching up on this thread

First battery pack in and rewired to have a bms for each 16s group, about to start working on the second pack!

Second pack in place, time to start wiring it up! 🥰

And powering up my 50kw inverter, hooking up to one of the high voltage packs to make sure we have comms working and it charges the battery properly. Heavy duty porn for yall Only hooked up 7 panels temporarily for test purposes, the pad for big array is leveled out and ready to lay out...

it will never pull that much since the inverter can only do 200 amps, so i should have plenty of margin built in, right?

Even better harvest today, I think 70kwh or maybe even 80 could be possible with them facing west, as early morning was pretty cloudy.

most superchargers i've been to are ~40c/kwh, idk if i'd ever use that unless in a complete emergency. what cars out there offer 2 way charging/discharging? tesla wise only the cybertruck does IIRC.

Ahhh good to know! I'll opt in to beta.

ok figured it out. looks like wrong OS flashed on the card. i'm in now!

at first i emailed <service@szshuori.com> then he gave me his whatsapp number and we did a video call through there. +86 133 9261 1606

I just sell it back to the grid, hope it'll offset enough to not have a bill in the winter

Massie is my hero.

Great sun all day today, highest pv harvest I've had in one day so far. Should be a bit better once I mount these panels facing south instead of west as they are now, but overall still very happy. Charged the battery and exported about 15kwh to the grid

I am, and I'll be switching them to ground mount after I get it set up for sure, cleaning the snow off them sucked balls

perfect, thank you!

yup, thats it!

So just suck it up and deal with it?

the shipping eats up a lot of the cost, so if you bundle panels with inverter/mounting hardware, wiring etc - it works out pretty damn good still. this is what i paid a year ago for my setup. full 20ft container

well this answers that question! this looks much better.

so in theory, 12 100amp bms's should be fine, as long as i use quality fuses/breakers, am i reading that right?

i'm doing 2 systems, the house is grid tied so i got a permit for that. my shop 50kw system will not be tied to the grid, they can suck my you know what as far as that goes. NUNYA

Starting to clean up the wiring a bit. Also adding individual disconnect for each group, and the entire system is going through a 300 amp class t fuse, you can see it on the top. Hopefully get the second pack loaded in the shed tomorrow and start hooking that up as well

Sounds like mine should be pretty similar, 14 packs for me when all said and done

hows this work, just converts PV output to 48v directly into battery?

Confirmed by srne

SONNOFA...!!! they could have made that a bit more clear, SMH. thank you!

subscribing

interesting, i just wired up the canh and canl to the inverter directly and it talks to my SEI/SRNE inverter using pylon protocol.

point taken, will do. although if someone comes close to my house uninvited... probably wont work out well for them

well the good thing is amazon will refund me for both of them, and i got a working unit from a local dealer, so at least this issue is fixed now. just gotta deal with solar assistant being a POS

That don't seem to work 🥹

my 20ft container was ~2800. looked into insulated, was told it would be 7-8k, wasnt worth it to me. i can insulate it myself for cheaper.

you said you paid $90/panel? my cost for 440w panels was $52 each

right now running off voltage, but this actually brings up a good point. today my batteries got charged to full, sun just went down like 40 minutes ago, and inverter already shows 'SOC' at 60%... how do people work around that?

how about we see pictures of the factory where these things are built? or screenshots of the CAD designs of the inverter? you're full of shit otherwise.

got this from SRNE tech support, he's saying using this PW should work, i'll try after work.

I see, my sa is reading my victron smart shunt so that should be accurate. Not calling you a liar by any means, just hard to believe it would eat up so much :(

thats the problem, it conducts so much better, so it absorbs more heat/power.

The app is actually quite fast updating, like matter of seconds.

a man after my own heart!

Thanks man! Yeah this makes no sense to me whatsoever, unless like you said, some sort of lost in translation thing going on

Let's see what they say

Hmm, good info, thanks!

So what are some decent breakers to use?

Hmm I have not, will look into it

I am

no need to try, i've done it. hope you've got lots of amps!

warning taken into account, i'm looking into alternative options now

the cells are BYD 230AH

panel specs. 10 in series per each MPPT channel. how do clouds affect current?

I have not been able to get mine working with it set to on grid. Had to change it to 'limit power to home load'

hey i'm a complete retard when it comes to electricity, lol. ask me to machine or design or weld something, i'm your man! haha thank you for helping me work through this.

i havent been getting this error last few days since i properly wired in the grid/load connections, hopefully it doesnt come back!

i'm with you 100%, but you might get some shit for saying the uncomfortable things out loud :(

This is starting to make a lot more sense now. So if I'm thinking about this correctly, because I was feeding both sides of the inverter, it was essentially going into a feedback loop?

Thank you!

Not today Satan...

i paid an electrician to wire up the inverter, i THINK he sized it properly... lol

well my post just above is using the SRNE Ipower app, not solar assistant, even that's not letting me do shit :(

i poked my meter probe through the shielding of the red wire directly at the unit, negative on the shunt. shows 54v. power IS being delivered to the unit. app shows no shunt to connect to. i have not tried to bypass the BMS, dont see how that would make a difference, my inverter is seeing the...

wont know until i get everything set up, probably later in the year. TONS of work still to do getting the ground ready for the array to go up

well, installed the shunt i picked up from a local dealer, works... so somehow i got 2 defective shunts from amazon.

yes, CT's are installed in between the meter and where my inverter is Tee'd off, which is between the meter and my panel

nope, he knows nothing about solar/hybrid inverters, i told him where to connected, that blame is on me, haha

what you see in the picture i posted, is a pack that contains 108 230AH cells, i'm repurposing that pack into groups of 16s 'modules'. each pack will have 6 groups of 16s cells, but they all stay in the enclosure (they're compressed and glued in, no way to pull them out)

i'll bite, what US made BMS/inverter etc do you recommend? last i checked, 99.99% of components on the market come from china.

opposite, i'm seeing more output during partial clouding than on dead clear days

this is what i'm referring to, way higher output than usual. anyone understand the physics behind this phenomenon?

thanks!

which bms and inverters are you using?

well i just got an email from SRNE support will be trying to upgrade it today, crossing fingers

must have been something with my wifi network, back up now

Yeah I have 5 acres, really no need to put panels on the container, and mine is only 20ft. My ground array will be more than enough i think

actually it was, this was designed and built at my job :)

this i completely agree with! i was just thrown by a comment saying he's not gonna use CCP crap, when most of the stuff in this industry is built in CCP, without any clarification. that said, who are considered reputable vendors for BMS's, inverters etc? i do appreciate all advice, passive...

Where my container sits, would not be beneficial to put panels on it. If I run out of ground to put panels on, I might consider putting them on the container lol

The only reason I want to keep it, is the business solarman app is actually very useful, so far the only way I can remotely control my inverter. I thought I read somewhere that I can split an rj45 connector as the dongle only needs 3 wires, and I can splice in the 2 wires for sa into it.

I swear I'm not racist lol! Just got quoted usd $58/440w panel from China for 2 pallets worth, shipping and tariffs are 4500 ish. If you buy an inverter and mounting hardware from them as well, then it's still a pretty damn good deal for anyone that doesn't mind waiting for a boat

fair point, i'll flip them tonight.

i had a line on one i could have had for free in cali, but transportation would have cost me over 5k... RIP

so essentially bye bye wifi, hello SA? nice. i believe manual says pin 7 and 8 are RS485. thanks!

why not import panels? last year i imported 150 440w bifacial panels for $52 each. cant beat that cost. i'm sure it'll be more now, but still very reasonable.

i need 14 for all my packs, thats a decent hit to the wallet :(