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I got two replacement cells for my 48V rack battery for free, although only one cell is clearly faulty out of 1500Ah (75kWh) purchased. To my surprise (as I haven't opened up any of my rack batteries yet) they are blade type cells and have tiny but clear QR type codes on both ends. I don't seem...

I have 2x Deye 12K and about 100kWh of batteries. Up here in Finland my batteries are most of the time empty at this time of year so no backup for blackouts (which are thankfully quite rare). Generator sweet spot should be around 75-80%, so this one should be used close to 35kW, but I can only...

Is it possible to somehow backfeed via critical load connection? It seems that my Deyes (2x Deye 12K, 3-phase operating parallel, but not in master/slave configuration) can charge my batteries more than PV+AC coupling enables. While the other is charging with extra 3,2kW, the other is feeding...

It seems I can connect either one of my Deye 12Ks to my Eastron SDM630 Modbus V2 meter to get CT readings, but not at the same time for some reason. I couldn't use original CTs that came with the inverters because i have 75m to my main panel. Here's my setup (left one connected in the picture)...

I have tried to seek info to AC couple my Deye 12K (sun-12k-sg04lp3-eu) with Bluesun 15K on-grid inverter. From this Youtube video I get the the idea how to do it, but want to optimize it further if possible. The problem is when battery SOC gets full, Deye disconnects GEN-port (used for AC...

Total noob for solar, but trying to make DIY 44kW vertically installed system with bifacial panels here in Finland. I can tell you it is overwhelming sometimes and learning takes time as I don't have anyone experienced enough to turn to when I have questions. Unfortunately time is scarce just...

New to the forum, new to the solar energy. Have 63 Bluesun bifacial 700W N-type shingled panels, 22 old electric poles, shit load of underground cable, 51 x 6m 40x40x3mm marine grade aluminium, 2 Bluesun 15kW on-grid inverters, 2 Deye 15/12kW hybrid inverters, 30kW lead acid battery and 4 x 5kW...