The Multi RS Solar has ESS options for "Optimise with/without battery life". When you use this, it uses the batteries first and any additional load requirement at the output is achieved by using the grid AC in feed.
My question is, will this result in any grid feed in either deliberately or just by leakage and is this allowed in the UK?
I don't want any grid feed in if that wasn't already obvious :)
I'm looking for some facts here rather than speculation or hypothesis if someone really knows the answer?