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Youre welcome, were here to help and put the world right :):) You also have the advantage of the active balancer keeping your batteries perfectly balanced on a continuous basis I chose the NEEY active balancer following on an Offgrid Garage review. This is where you come unstuck, I cant find...

If theyre all pretty close to 3.22v I wouldnt bother the balancer will balance them up in operation. The other option is to add an active balancer to the system, they do work really well with 4 amps of active balance current. This unit copes much better with balancing than the Seplos BMS ever...

My Growatt doesnt do that, if the AC charging is off or not withing the charger timing window it doesnt charge from AC, it will from solar PV.

Not needed, just switch AC charge off as per my screenshot. It seems a complicated way instead of using a timer function.

I would suggest you look at MyEnergi Zappi, it's one of the best wallboxes on the market, integrates with solar, Libbi batteries and EDDI energy diverter. Very robust, reliable EVSE. It also is one of the three that integrates with Octopus Intelligent GO, the very best EV tariff and gives you an...

As I'm sure you know, this cannot be the case if all of the other conditions you state are true. My guess is that the water is going into the heat exchanger at 20degC and coming out at 41 degC. Fit the pump the other way round to get the flow and return orientation right.

This does it.

Assuming that you mean the CT when you say coil. The CT is used to detect current flow on the incoming grid supply, the inverter uses the information to increase it's voltage output (if import was taking place) or decrease it's output voltage (if export was taking place). The problem with CT's...

The connections you have circled are the solar PV input, the manual is referring to the battery and BMS connections (neither wearing their ferrite rings). A slightly more serious problem is the CHNT double pole MCB, it looks like it's on the battery cables but isnt rated for DC operation, there...

The tariff doesnt matter, it's during the saving sessions as stated for grid balancing. You are notified usually the day beofre that a saving session is scheduled. At the allotted time energy that you save (based on an average of the last 2 weeks at approx the same time) or energy you can push...

The trick currently is to run through the day on batteries, export all of the solar PV you generate and then recharge the batteries off peak. Add to this the saving sessions for grid balancing and you can make some serious income from your system. In December I made over £90. Export is paid at...

In a word - NO

Take a good look at tariffs available before you write off AC Import. With Octopus, export is paid at 15p and off peak import 7.5p so I never charge from solar, I export it all. There are also grid balancing sessions where Octopus pay upto £4 kWh for export.

Turn off the AC charging in the settings, that will stop it. The protection will occur with how low it can discharge.

If youre on Octopus, request an Octopus Mini, it gives you virtually real time data from your smart meter(s)

There were some parameters I had to change when it's in genny mode for it accept wider frequency and voltage variations.

The changeover switch goes there but the invert mode is different to the normal grid tied mode. I'll have a look at the docs when I get home.

Changeover switch puts the generator feed straight onto the mains input, Victron functions as if it's a shore supply on a boat and assists the incoming supply as opposed to grid tied operation. I've only run it twice in anger in a powercut and not had to use the generator other than testing but...

Yup, me too, I feed the genny into the Victron inverter which then provides the AC power to trigger the Growatt into action. The 3kW genny supplies enough to keep everything going with the inverters and batteries feeding into the mix to keep all loads supplied.

Me too, its been amazing on two occasions when weve had a powercut that we just carry on as normal with washing machine - tumble dryer etc, seems really odd when all of our neighbours are down to candles and camping stoves.