Thank you for the very detailed overview of your system. I like that you are not grid tied, and use your sunny islands as the AC grid for your sunny boys, and then use the ac output of the sunny boys to charge your batteries. It makes sense, and seems very simple, and eliminates the need for any external MPPT chargers for the batteries. Great work.
Thanks for going on through your settup. It's really helpful. I would like to ask it there is rs485 communication between the sunny islandsand the sunny boys and if so through which port?
No there is no rs485 communication. They communicate trough frequency in the AC phase. You can see that All Hot (phase) cables are combined in the electrical box 9:00 Sunny island can change the frequency up and down and thus it tells the sunny boy what to do.
@@Sega-and-Mao If the batteries are full the SI will rise the frequency and and thus the SB will "understand" that it must not produce any more electricity from the solar panels. So it doesn't :)
I thought in Europe they want isolated ground and neutral not that it actually matters as it only rarely matters when touching a grounded metal box and power accidentally so as long as people are careful? I'm from the US and was electrician for awhile when I was younger and we bond ground and neutral! Did you have experience with this stuff or self learned because it's quite impressive!!!
The sunny boys are not connected together ( the sunny island are) All sunny islands and sunny boys network cables are connected to my network via network switch
The Sunny island will still produce electricity it will just not be used and in that sense it doesn't produce electricity if that makes any sense! :) The sunny boys on the other hand will in fact stop producing electricity when breaker is off.
You use 240 volt dedicated not split phase? Because in US we are 240 split phase and 240 is not considered 2 phase here. The voltage is derived by a center tap transformer, so is considered single phase. Derived from one leg of a 3 phase power system.
OMG a self confessed rank amateur, no electrical knowledge, self taught, playing around with lethal mains and dc (400v) voltages - I cant watch anymore its painful
Thank you for the very detailed overview of your system. I like that you are not grid tied, and use your sunny islands as the AC grid for your sunny boys, and then use the ac output of the sunny boys to charge your batteries. It makes sense, and seems very simple, and eliminates the need for any external MPPT chargers for the batteries. Great work.
Thankyou very much for these videos, have saved me lots of time researching!!! Watching from VIC, Australia
Great work and effort, I hope to see more of your keep up to it
Well done figuring all this out, great help.
Thanks for going on through your settup. It's really helpful.
I would like to ask it there is rs485 communication between the sunny islandsand the sunny boys and if so through which port?
No there is no rs485 communication. They communicate trough frequency in the AC phase. You can see that All Hot (phase) cables are combined in the electrical box 9:00 Sunny island can change the frequency up and down and thus it tells the sunny boy what to do.
@@penandpikethank you so much for the fast reply🙏. So sunny boys just follow whatever frequency is dictated by the SI?
@@Sega-and-Mao If the batteries are full the SI will rise the frequency and and thus the SB will "understand" that it must not produce any more electricity from the solar panels. So it doesn't :)
@@penandpike 🙏🙏🙏 thanks for rhe info
I thought in Europe they want isolated ground and neutral not that it actually matters as it only rarely matters when touching a grounded metal box and power accidentally so as long as people are careful? I'm from the US and was electrician for awhile when I was younger and we bond ground and neutral! Did you have experience with this stuff or self learned because it's quite impressive!!!
No experience whatsoever. I taught myself from RUclips videos and used some common sense. :) :) :)
Very nice setup i have similar but smaller system,just wondering how the sunny boys are connected together via ether net cable?
The sunny boys are not connected together ( the sunny island are) All sunny islands and sunny boys network cables are connected to my network via network switch
Ok thanks for the reply...for some reason I thought the sunny boy had to be connected to the sunny Island via network cable so they could communicate?
So the Sunny Island stops producing power with the breaker/fuse in the off position? Have you put a volt meter on the feed wire to verify?
The Sunny island will still produce electricity it will just not be used and in that sense it doesn't produce electricity if that makes any sense! :) The sunny boys on the other hand will in fact stop producing electricity when breaker is off.
@@penandpike that was my understanding as well. Thanks for clarifying.
Thank you Ir, please could you to send me the good fonctionnement of these machines, please help me
Which Bms make and model you used for the batteries
Rec Q BMS. 16s.
Now they have a newer model!
👍👍👍👏👏👏
You use 240 volt dedicated not split phase? Because in US we are 240 split phase and 240 is not considered 2 phase here. The voltage is derived by a center tap transformer, so is considered single phase. Derived from one leg of a 3 phase power system.
Here the phase is 240V (single wire)
OMG a self confessed rank amateur, no electrical knowledge, self taught, playing around with lethal mains and dc (400v) voltages - I cant watch anymore its painful
Yes it is not for the faint hearted "sheep"!