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I have the following batteries in my setup. 2 x EG4 Lifepower4 100Ah 1 x SOK 100Ah 1 x Custom JKBMS 280Ah I am finally starting to pull all the data for each different BMS into InfluxDB and Grafana. I just wanted to share how pleased I am with the current sharing of each battery during...

I had contemplated setting up fancy ESP32, raspberry pi and other graphing software to monitor the two types of batteries I have in my bank: EG4 Lifepower and SOK server rack battery. I mainly use a Mac for my work and the only windows environment I have is virtualized on a rack so I couldn't...

For those that have been following, all is seemly well with my setup that uses ~30KWh of storage using different server rack batteries and the Outback Skybox with 5KW inverter capacity. I have 4.94KW of DC solar West facing and 2.95KW of AC coupled solar that is East facing. I have set an export...

I'm just wondering what is the typical efficiency on the AC side when cycling a battery to load shift and take advantage in the differential in pricing of electricity. I have the outback skybox and I calculate around 85-88% efficiency. For example, the night before, I discharged 9.09kWh but used...

I'm looking for the most cost effective system that I can buy locally. I am planning to mount 10 panels, 2 x 5 and each panel is 40" wide. I did some calculations and Unirac has 208" rails which is perfect so I can avoid the use of splices. The panels will be mounted towards the edge of one side...

I just passed my DIY 200A OH service upgrade in PGE territory. Previously I had just a meter socket and a 100A connection to my main panel which was very crowded and would prevent me from installing new appliances like induction cooktop and HPWH. I installed a new meter + panel and moved my...

What I am looking for is not consumption but rather straits readings from the consumption CTs of current import and export values. Consumption from enphase perspective is some math involving current production of the solar but when another inverter like a hybrid inverter is involved, consumption...

So I got a 20A, Chtaixi DIN rail dc breaker from amazon but it is slightly too tall to fit in the box (won't close). My single solar string has an Isc of 10.5A and DC voltage < 500V. Any suggestions?

Not quite a cheap as santan but has some panels for a decent $/watt. Any thoughts?

My internet search is failing me but is there a way to get eg4 lifepower4 bms data into mqtt?

The inspector wanted grounding bushing since the chase nipple might not make good contact with the panel. I agree but I can't find what i need to buy in this case. They make 1.5" grounding bushing but then I would need some male pipe section? Anyways, a picture is worth a thousand words so i'll...

I took on the project to upgrade my meter to a new meter + main panel with my existing 100A main as a sub panel. I have 4.7kw DC coupled system with 7.5kw IQ7+ AC coupled system and 30KWh batteries. The Outback Skybox took over the backup loads panel which basically covers all my servers...

I’m one short and need one of these to complete my system. I’m testing my luck here!

Does anyone have the rj11 to db9 pin mapping for pace BMS that is used in the SOK or Jakiper server rack battery?

Is there a conclusion on which BMS this is using (without LCD) and if we can decode the RS485 data using some open source software? I want to remotely review the BMS data while charging and discharging. I am OK with using a raspberry pi4 or something similar to view the data.

I finally set up the Outback skybox and it is great. I got 2 x EG4 batteries so I wanted to post my settings to have people check if I could optimize the system even more. One of the challenges was to get the skybox to use battery whenever the LCOE (levelized cost of energy) is lower than the...

For 33 cent a watt, is this a good deal? What is this I read about two separate strings? I might be mistaken but is there nothing special about this panel? I see the connections at the middle of the panel versus the end of the panel.

8 Left over from a project. Used these on my house back in 2014 and recently added more panels so I bought more. Plans changed a little so I have 8 left over. See here for details: https://www.quickbolt.com/product/17551?parent=302 $90 includes shipping to anywhere in CONUS. Edit: ended up...

If anyone has a good deal or is looking to split a pallet, let me know! Thanks!

I’m looking for an electrician that understands what a home owner does with DIY inverter and battery systems that now needs a good look over the entire system. I need advice on what needs to be done to get a permitted 200a service upgrade from the existing 100a panel.

Has anyone looked at the serial stream to decode the data before so I can write a very simple serial to TCP program to query the battery data? I'm using a RS485 + RS232 to Ethernet/Wifi adapter and installed a virtual com port in windows while logging the communication between the BMS...

I'm decluttering and have left overs from projects. PM me what you want and i'll quote shipping. 1 x Pack of 3 Dual 1/0 cable tie down (Conext Link CCD0-4) 4 x Hubbell cable glands (SHC1039CR) 2 x Current sense transformer 100A:0.05A (Digikey: 1597-1307-ND)

I've been playing around with SunSpec after enabling modbus TCP on port 502. I'm using the application here: https://github.com/volkszaehler/mbmd Command: ./mbmd inspect -a skybox:502 -d SUNS:1 https://pastebin.pl/view/62afc294 What should I do with all this data now? :)

I just received 2 5Kwh batteries from them and I think I could use one more in the system for total 15Khw. If anyone in the bay area is looking to make a purchase of batteries, please help me order one more EG4 server battery and I am happy to pitch in for the freight shipping. If anyone has a...

The main question is since I am on NEM2 and EV2A home charging rate plan, should I use my inverter and 30KhW of battery storage to load shave, self supply during PEAK times and use PV + Grid to charge battery back. This is essentially what I did during the summer months and it seems like I have...

I'm trying to see if there is a good way to mount three server rack batteries off the wall. Just wondering if anyone has done this using unistrut so i can copy all the required parts? I was thinking that the batteries would hang from the rack mount ears.

It’s not clear if my old inverter can be run in ac coupling mode and support frequency-watt adjustment. I checked Sunny Explorer and there are some settings rated to island and frequency curve but I need the grid guard code to change those settings. Is the grid guard code easy to get? Thanks!

Excuse me if this has already been answered but I’m looking to see if anyone has done any testing with frequency watt adjustment on load side when grid is down and PV is generating more power than needed. Do the iq7s have issue with anti islanding detection? I’m thinking about switching from...

I got my first SOK Rack battery after getting two EG4 Lifepower4 batteries. I actually have no complaints about the balance or anything of the EG4s but I was expecting better from the SOK. After 4 cycles, I still haven't figured out how to get the BMS to balance the cells. My charger seems to be...

Has anyone found documentation to wire something like a emergency switch to break a signal or make contact and wire into the envoy for rapid shutdown. This is when the micro inverters are part of the backup loads panel during grid outage.