rottenkiwi
New member
- Joined
- Dec 26, 2019
- Messages
- 4
My name is Paul. I would like to show my learning curve @ building
battery packs, strings of panels, linking solar chargers, battery & inverter
together, with DC bus bars, shunts, DC, AC breakers & so on.
My system is off-grid, but I use inverters with built in chargers,
also hybrid inverter.
2015:
I started in 2014/2015 with no knowledge about build & commissioning such system.
http://forum.mypower.cz/download/file.php?id=4459&mode=view
Soon after beinning I realized, that monitoring in solar charger is not sufficient.
So I build my own monitoring system with Arduino Mega, Eth. Shield
and Amploc AC/DC current sensors + some voltage deviders.
http://forum.mypower.cz/download/file.php?id=4458&mode=view
I knew nothing about 18650 LFP, NCA, NMC, LTO, LMO, LCO .... cells.
So my first battery was Trojan Pb fl. bat.
My cheap 3000 VA inv. went to Si hell, so my second choice was:
http://forum.mypower.cz/download/file.php?id=4538&mode=view
I searched for better batteries, so I bought refurbished 100 Ah Winston cells.
http://forum.mypower.cz/download/file.php?id=4838&mode=view
I extended alsosimple Arduino PVMS.
End of 2015:
investment 2700 , el. savings yearly 218 .
battery packs, strings of panels, linking solar chargers, battery & inverter
together, with DC bus bars, shunts, DC, AC breakers & so on.
My system is off-grid, but I use inverters with built in chargers,
also hybrid inverter.
2015:
I started in 2014/2015 with no knowledge about build & commissioning such system.
http://forum.mypower.cz/download/file.php?id=4459&mode=view
Soon after beinning I realized, that monitoring in solar charger is not sufficient.
So I build my own monitoring system with Arduino Mega, Eth. Shield
and Amploc AC/DC current sensors + some voltage deviders.
http://forum.mypower.cz/download/file.php?id=4458&mode=view
I knew nothing about 18650 LFP, NCA, NMC, LTO, LMO, LCO .... cells.
So my first battery was Trojan Pb fl. bat.
My cheap 3000 VA inv. went to Si hell, so my second choice was:
http://forum.mypower.cz/download/file.php?id=4538&mode=view
I searched for better batteries, so I bought refurbished 100 Ah Winston cells.
http://forum.mypower.cz/download/file.php?id=4838&mode=view
I extended alsosimple Arduino PVMS.
End of 2015:
investment 2700 , el. savings yearly 218 .