Recent content by Julian-Indaiatuba

Thank you so much for your reply. I’m afraid I have no idea about the cell voltages, or how the SOC is monitored. I just use the data cable with which the battery bms is connected to the inverter. I have attached a picture of the loads just before the SOC dropped. Also attached is the manual...

Hello, About 4 months ago, I exchanged by 8 lead acid batteries for one LiFePO4 100Ah battery, made by Unicoba, which is a renowned company with decades of experience in manufacturing batteries here in Brazil. At about 10:30 pm every night, I switch the inverter, a Growatt SPF3500ES, to battery...

I have been using the Growatt hybrid inverter for more than 2 years now with lead acid batteries, and have never had a problems. Recently I bought a Narada 48NPFC100 battery (details in attachement) which are used a lot in Asia, South Africa and Australia. I live in Brazil where it is difficult...

Thanks again fo all your replies. To me the 16 kW a day my 10 panels produce in the summer seems perfectly normal. Like mentioned above, the conditions have to be perfect to achieve 330W per panel per hour, and this is theorectically only possible 5 to 6 hours a day, often more like 3 or 4...

I don´t think I can complain. My ten 330W panels generate about 15 or 16 kW on a good summer´s day, and around 12kW during the winter.

Thank you again for your input. All 10 panels are mounted at a 23°, as is the lone panel. The 10 panels are facing north, whereas the other panel is facing a bit more north-west. Do you feel this really could be an issue?

Thank you! This too is very useful information. I think I will give it a try.

Thank you for your input. Yes, the lone panel is at a slightly different angle, but receives sun from the same time as the other panels and is never shaded. Our house is exactly on the tropic of Capricorn, so especially in the summer, the sun is straight above us. Could I really loose more than...

Thank you for replying so quickly. I don´t think I´m too worried about those small losses if I can add about 10% to my array with a panel that is otherwise being useless. I will connect the panel tomorrow then, and see if my production improves a little. The temperature shouldn´t be a problem as...

I have ten 330W panels in series about 100ft from my inverter on a 48V system. There’s another 330W panel I used to use for another smaller 24V system, which now is no longer in use. This panel is about 20ft from my inverter. My inverter supports up to 500V VDC, so I was thinking adding the...

Thanks for your input and suggestion. I‘ll order some of those. I don’t think I’ll get much higher than 20amp, so those should be perfect!

Thanks!

Thank you very much. I think I won’t be having too many problems connecting those two arrays then. If I use a MC4 fuse in the strings, is that only on the positive wire, or the negative also?

Thank you for your reply. I will be joining two strings of about 300Vcc and 9.5A each, so I suppose that should be fine. Should I use a 20A fuse or maybe just a little higher? Thanks again.

Hello, I have Growatt SPF 3500 ES hybrid inverter and now have nine 330W solar panels connected in series as the inverter can handle up to 430 Vcc. To add more panels I would have to build two arrays of 6 or 7 panels, and connect the two in parallel. I would really like to know if it’s OK to...