FoxESS Community - Owners & Installers Forum

I have a 10kWh battery with 5kWh inverter, but no solar as yet. However, since plug-in solar panels will be available in the UK from 27 August, I wondered how a couple of panels would cooperate with the battery?

In broad terms, and trying to be as simplistic as possible here.


Your inverter has a CT clamp, applied to the incoming mains, it will detect when your home is needing power, and supply this via your battery.

If you plug in solar to a circuit, then it (AFAIK) supplies power to whatever is on the same circuit*
Your inverter would not see a load on the CT clamp, so it would not supply energy. Only when your demand more power than the plug in solar can provide, will your battery supply the remainder. I do not know for example, if the spare power can charge it up, I feel this might not be possible at all.


*This is how I understand it, I could be wrong! It could perhaps push power back to your consumer unit, and the spare energy can flow around other circuits in your home This is just my best guess on the subject, so could be complete and utter trash.

Thanks for your comments. That is what I thought would be likely to happen.

I am sure there will be many more such articles out there https://www.bbc.co.uk/news/articles/c4g3y6398nwo

Not sure if I would drop around £1,000 on two panels, better saved in a pot for putting on roof solar in the long term, unless you have plans to move home.