Recent content by mygoggie

It is time to resurrect the project. I will start posting details shortly ....

Note that there is new firmware out that you need to install to close a hole in the firewalling system.

I have been playing on FreeCAD (once again a CAD package to learn) to get the optimum layout of the PV panels on the roof. @Sarel.wagner I have decided that I will install 20 panels and be done with it. At the moment this is more or less the layout which I am aiming for. The western panels...

It is always good to enjoy a great moment with some good wine.

My company has an account with a wholesaler. PM me if you want to check pricing.

After playing around with the Victron calculator using the custom characteristic values of the PV panels I have ordered, I found that two Victron SmartSolar MPPT 250/100-Tr VE.Can units will allow me to use any combination of up to a total number of 24 panels. I therefore ordered these two...

You buy a vehicle from them on tender basis. Not sale basis. So you have no recourse whatsoever.

That is a common mistake we all make. Two nights ago I put some transistors in the wrong way round. Fortunately saw something looks odd ...

So what did you do wrong? Would be nice to know so that we do not do the same mistake!

Calculating MPPT size ... and then seeing what these little blue boxes cost. Sigh ... Victron has a very nice calculator that allows you to enter the PV panel specifications and allows you to play around with the number of panels in series and parallel. I learned one thing today from this...

Yesterday I checked on the generator after @Vaal mentioned this piece of maintenance. Low and behold the battery was not charged! A quick check showed that it has lost a cell. Oh well, after 10 years of service I should not complain. Spent a few cases of wine on a new battery and installed it...

Let me know what transistors you used.

It should as per this Victron answer. I want to replace and upgrade the AVR on the genset in any case as this was destroyed when lightning struck the genset. Other options are to install a smoothing filter or even a 1:1 transformer. I will put the scope on the inverter feed and have a looksee...

Back to batteries vs PV array vs Inverters The decision to be made is to what degree do I wish to depend on the grid as a battery. Let's start with the assumption of 1% dependency. This means I can always fall back to grid feed if I have real issues with my setup, but normally all things will...

A tiny bit more. Batteries. Here I have three options. Wait for new tech, use existing tech or use old tech. If I use old tech I will go for something like Alu Air or maybe Edison's NiFe cells. New tech will be the Na-ion cells which BYD is releasing in the near future. Existing tech will be...