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3-phase Powerwall for 31 panel (9.3kWp) solar system in the Netherlands
Hello all, I was hanging around here already for some time, but decided its time to start logging the progress and search for some experience on design choices.

My Goals are :
- 3-phase system (to run my whole house and workplace wit 3-phase devices).
- scalable (expand as I collect more battery's over time).
- Safety  (is alway's 3rd rule right?)
- Minimal maintenance
- Easy to do maintenance
- Gans Geile statistics (Grafana)
- And I hope to find/learn some things that picks my interest to try and pushe the edge of DIY powerwalls (improve) even further. So don't be shy to tell me about some shady direction that would help this community greatly is someone would crack that nut Wink.


I will update my latest project progress here while putting more details about it in new posts.

Tested Battery count : ~40 with average capacity of 2150mah.
Battery queue count : ~400 (searching for more)

Current State Design : 5%
Discovering what my options are.
  • Inverter : SolarEdge SE9K???
  • BMS : ???
  • Number of cells : 12???
Current State Building : 3%
Preparing the basement under my garage to be water tight (and not smell Wink

I'm also on the DIY discord that I found here somewhere : DIY Energy Pack Discord invite -
WuggyBuggy likes this post
Good start.

If you want some ideas you can check my setup. I run my whole house for some years now and its 3phase.
EnergyInternet likes this post
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcoming: 14S 18650~30kWh | Automatic trip breakers, and alot more

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