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Adding battery storage to SolarEdge PV system

 
Energy Storage
Last Post by nazuro1041 17 hours ago
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 nazuro1041
(@nazuro1041)
New Member Member
Joined: 18 hours ago
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Topic starter 25/06/2025 7:14 am  

Hi, I think I've narrowed down my choice to a Sunsynk 5kw inverter with the new 32kwh Fogstar battery. Will also be getting a Zappi car charger at the same time. Does anyone have any experiences of a setup like this? Would really appreciate confirmation that I can do the following please:

 

I want to ensure that:

  • Car charger cannot "see" the battery, so only charges from grid or solar (most likely I'll only be charging overnight when no solar, but I'd like the option too of charging in the daytime from grid only if possible)
  • I can prioritise excess solar to be exported rather than stored in the battery (I want to only charge battery 00:00-07:00, but this could change in the future)
  • I can export any leftover battery to grid at the end of the day
  • I have visibility over solar generation, export, battery usage etc in Home Assistant. I am currently doing this with SolarEdge but with Sunsynk/Zappi in the mix do I need something like a Harvi? (suggested by my installer).

 

Also I couldn't quite understand the two options provided to me for the car charger, I could have it set up with 1 or 2 consumer units. Which would be optimal?

 

Thank you

nazuro

 

 


   
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