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I have recently found the Youtube channel Roland W. He covers a range of topics related to solar installations. Recently, his video about earthing off grid inverters was useful to me. I have no affiliation, I just thought this content would be useful to people on the forum.

I thought some people might be interested to see the differences in some cable lugs I have received in the course of my solar battery build. The lugs are: 35mm2 with ø6mm hole, from Australian manufacturer Carroll, supplied by Springers Solar. 50mm2 with ø8mm hole, unbranded lugs from an Ebay...

I've had one of the ubiquitous Longwei power supplies for the last 18 months or so. It's sat on a shelf most of the time. It appears to no longer be working and I wonder if it is worth trying to repair. Symptoms: Lights are on, but nobody is home. Voltage and current displays read 0.00...

I am building a 3P8S pack from 150Ah Lishen cells. For various reasons, a good physical configuration is this: The supplied bus bars, simple plated copper links, will not work with this arrangement. Would it be a stupid idea to use large plates to make the series/parallel connections? Like...

Hi, I'm hoping to get some advice on how to provide adequate fuse protection for this system I am developing. It is based on the Electrodacus SBMS0, which is why the solar array is weird - no series strings. I understand the need to protect the wiring from overcurrent caused by a short or other...

I need to connect 12 250W solar panels into 6 parallel pairs. Each pair will be connected to the charging system using a pair of 6mm2 cables. I am not sure of the best way to make these parallel connections. The panels have 4mm2 leads, currently with MC4 connectors. Should I: A) Connect the...

Can I get a sanity check here please? I'm about to place an order for some cells to build a backup bank. I need 8S in order to work with an Electrodacus SBMS0. I've all but decided to go with 24 150ah Lishen cells via Michael Caro. These are pretty good $/kwh and are apparently more readily...

Here is the situation. I have obtained a pile of 250W solar panels and mounting hardware for dirt cheap. I would like to build a stand-alone system as a backup for grid outages and to power some regular household loads. I would probably take my shed off grid, except maybe my welder, table saw...