Part 11: Koffer Electrics
1 August 2013

So finally got round to sorting out the electric cables that hung for so long over the Day Bed waiting to be connected into a Fuse Box. It took one day to sort out as some of my labelling had fallen off over the 3 years that it all had hung here.

 How it has been for the last 3 years with labelled cables just hanging down the wall


 Tools and components laid out ready to hand as I use them


 My main power feed is a 35mm2 cable from the battery bank to a main distribution busbar that then has wires leading down to the individual fuses. All the black wiring is from 2.5mm2 cable.
The Ammeter shows the current coming from the Solar Panels


 I have put the power supply to the Stereo thru a 40A fuse and 25mm2 cable


 The Fuses are in and the Earth busbar mounted. 2 cables are soldered together as they join the stereo with the battery and the earth busbar. The surrounding box frame is now also in place.


 Finished with a switchable Voltmeter and Water Tank level meter. Solar Regulator above.


 My battery box with an old 120Ah Banner starter battery from the truck thats still working, and my new Winner AGM Solar Free WF 230Ah battery
I always mark my batteries with the battery details: Ah & buying date as well as clearly mark + & -
I mark all my earth (-) cables with Yellow/Green electrical tape


New Solar Panel
I had already a 100W  Polycrystalline Solar Panel ( efficiency of 11.3% and Max Current (Imp) of 5.46A) and now Ive  just added a 150W Monocrystalline Panel with an efficiency of 18% and Max Current (Imp) of 8.43A
With the 100W Panel I was able to get through sommer solely from its out put, but winter left me deficient. So Im hoping by adding another Panel I am able  to get through the winter using only Solar energy for all my electrical needs. I may need to add another panel yet!

I have mounted the panels with a system so that I can angle them towards the sun with an angle of 33° as during winter in Berlin we receive less amounts of direct radiation with approximately half arriving as diffuse radiation, due to frequent heavy cloud cover.
By using hinges with removable the center pins (locked with a split pin) Im able to put in lifting spacers to set the angle.




The two Solar Panels on my roof.

Also can be seen is my Powerlink Outdoor Plus WLAN Long Distance Antenna, just in front of the roof hatch.

        This is the Panel in tilt mode

Detail of my hinge setup


            This is how Ive connected the system

I was using an IVT 20A, PWM Solar regulator but now Ive updated to a more efficient MPPT regulator.
Im using a Votronic MPP 430 Duo Digital





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