Hey all!
I've got a question about a new setup. My installer is not familiar with Victron, so I want to check the current concept and some additional questions.
System outline
- 3 phase
- 10kWp Panels (8.7 kWp output)
- 23 x 435 Wp PV panels (13 + 10 groups)
- 23 x Enphase IQ8HC (380W output)
- 20 kWh battery
- 3 x Multiplus II for battery management
- 4 x Pylontech US5000
I've made my own calculations on opensolar. The system would cut my yearly bill by 70% (10kWh battery would be plenty for this calculation) (without batteries it would save 50%) and would produce about 6.400 kWh/year. According to Opensolar this is 600 kWh/year more than a string setup with Victron.
I was thinking of putting the victron parts directly after the main switch and return from both outputs.
The questions
- Which system should manage the overall system?
- For managing power export (ability to throttle to export no power export)
- For disconnection from net on grid outage (switch to battery and solar)
- For disconnection on inverter switchoff when neighborhood goes over 253 V (Netherlands)
- To makes sure our production stays on with disconnection.
- Or would I have two power monitor systems?
- If I dump Enphase and solely use victron, how does victron prevent export of overproduction? Presuming the batteries are full.
- The roof is pretty shaded most part of the year. How does Victron manages this. Would I need 4 strings on one side of the roof? (4 panels per string)
