Mounting

I have been working away at making the bus bars required to connect the new stacks. Here are some progress shots from various stages.

I started mounting the Victron 150/35 MPPT’s.

After a couple of months its become obvious I need more production. This summer has been wetter than usual, and production is probably down on average however I have not been close to filling my battery. It’s obvious to me I need more solar. I had always planned on adding some second-hand panels to my…

I had an electrician add a second electrical box to the side of my house to accommodate my essential circuits. He also did a bit of a tidy in the main box and added my EM24 3-phase power meter and a Cat6 cable for it.

Now that I have a completely new way of mounting the modules – and more of them, I needed to remake all the busbars. I found a local company willing to make them for me with their CNC Mill. This will ensure the holes are precise. I also didn’t feel like drilling hundreds of holes….

Now for the fun part. I started to play around with suitable positions of the BMS, Fusebox and Breaker (shunt trip). I am using 70mm welding cable I obtained from Metalland and terminating with Cabec 70-8 cable lugs and covering with heat shrink.

My shunt trip operates from 48V making it easy to power. I added some wire with Ferrules, drilled a hole in the side of the breaker and fed the wires through. I also tied a not in the wire on the inside of the breaker to stop it pulling through.