Offgrid solar system to fix house wall

Hello Victron community,

I wanted to share my Victron system which started very very small with one Multiplus II 3000, 2 Pylontech US2000C, three MPPT 150/35, Cerbo GX and 18x370W solar modules and the system is growing and growing:


It all started with a damaged house wall. The thermal insulation was coming off. The repair of the west wall would have cost 20.000 - 30.000 Euros so I searched for another solution.
The idea was to repair it instead of throwing the insulation away. Unfortunately we could not find someone who would have installed solar modules on the wall to fix the thermal insulation and generate solar power at the same time.

So I did it myself by fixing the insulation with special screws against the bricks and used the same screws as mounting point for the solar panels.
The plan was to use the system to charge our EV which is not used for long ranges and for one washing maschine.

After installing the components I was (and still am) really thrilled by the victron products. The documentation and the online tools are very good and so are the products.

Now 3 Multiplus II 3000*, 6 Pylontech US2000C and 6 MPPT 150/35 and 3x more modules are powering a single phase system which reaches to every room and is still offgrid. The next step is to use microinverters to install even more modules and reduce the load on the inverts in the house.

I just wanted to say thank you Victron! In 2024 it is not a given that products work so well.

Keep on rocking! If I would live in the Netherlands I would try to join Victron asap.

I will add more pictures of the system.

Best regards,
Gerhard

  • Which other brand would make this possible? I can combine this 3 inverters to power one phase and if I choose to connect it to the grid, I can build a three phase system. WOW!
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And here is the current state with the first microinverter connected.


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If I only had a wife that would tolerate Wall-Solar-Usage… :laughing:

Plus in our local law, it is also prohibited that “solar panels are visually exposed” :face_exhaling: - May be room for discussion over here.

That’s very interesting about local laws. So you can’t mount your panels on the ground? What about stands like a carport?

Theres a lot room for interpretation on that, that’s the sad thing. “Visually exposed” is not a real good definition. Even on a standard-roof you can “see them”.

In other words: You have to ask the officials before doing something and get a clearence “on paper” - else they may just ask you to remove it, by referring to that unclear regulation.

Very funny. On the plus side, you at least have rules. :crazy_face:

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I think some kind of Oompa Loompas keep on installing more panels with AC microinverters.



The 3 Multiplus 2 and the microinverters work together like a charm.