Hey everyone,
to give this new showroom a bit of live, i’d like to show you guys my system.
Core-Components:
- 3x Multiplus 5000/48
- MPPT 250 | 70 with 3200 Watts Solar 0°
- MPPT 250 | 85 with 4800 Watts Solar 0°
- Fronius Symo 12.500 with 8000 Watts Solar, 30° South.
- Hoymils HMT-2000 with 1840 Watts Solar, 60° South-East.
- Fronius Wattpilot for Solar-Overhead-EV-Charging
- 8x Pylontech US3000C
Victron-Wall:
Heres a overall picture of what I call the “Victron-Wall”
DC-Box:
The DC-Busbar is made out of 10x20mm Pure-Copper material, featuring a total of 12 possible Connections. Bars are designed asymmetric so with alternating +/- everything can be connected nearly straight, matching the usually width of a 2 TE Breaker. (However, at the End 1.5TE Breakers, only positive end have been used)
MPTTs and Multiplus are each connected with exactly 1.8m of 35mm², Batteries are connected as 4x2 with 25mm² cabling.
Each cable is equiped with a 1-Wire DS18B20 to monitor temperatures 24/7. MPPTs got some extra cooling fans, and the whole “DC-Box” is controlled by a wemos d1 mini, sending all values to my local mqtt and controlling fans as required.
The Batteries
8x Pylontech US3000C, 28 kWh capacity, connected as 4x2, have been equiped with a 4mm Child-Protection-Window (you can find and print the holders here: Pylontech US2000/3000/5000 Bracket Child-Protection-Window-Holder by dognose - Thingiverse) - not to protect the child from voltage, but to protect all the buttons and switches from the child
Solar
Solar is a total of 16 kWp, All Panels made in Germany (Heckert Solar & SolarWatt) arranged as 8 kWp with a 0° angle (You can walk on these, full glas/glas) and 8 kWp 35° South on the upper roof as well as 5 Solar-Thermic Collectors for hot water.
No Sun…
… no problem. 2 years ago I decided to build a 2kw Windturbine on my lawn. Well, the expactation on the turbine was more like 500 Watts to extend battery runtime during night - and yeah, that’s about what is possible at best at our local wind-conditions.
Finally
I’m a professional Software-Engineer with background in electrical engineering, needless to say that everything in my home that is somehow related to electricity is controlled through my (self developed) home-IT System, which’s data content meanwhile is consuming a 8k resolution full screen in my office (but also fully mobile capable ofc.)
The energy flow is just a super cool visualization, scaling in real time. So messmerizing, I could watch tiny energy bubbles float around for hours
I’ve even written an “Extension” for VenusOS that fixes some flaws and also adds major functionality like a central Solar-Overhead distributor to orchestrate all consumers - which I will make available on github during the next weeks.
That’s it from my side - if you have any questions about details, feel free to ask.