I have a technical question for you.
I already have a PV system with SolarEdge SE8K (the new one without display) inverter and a Senec V2.1 storage with 7.5kw battery.
Please do not tell me if this makes financial sense or not, I know it does not make sense :-)
But you can suggest me a cheaper / better solution.
The Senec storage has already a zero control at my house power connection (ergo I have a consumption and too little PV pushes the Senec battery power after / If I have PV surplus and the battery is not yet full the Senec is charged / etc.)
- I would like to install an additional independent second battery in my house.
- Planned here would be a Victron Multiplus II 48V 3000 watts
- The Multiplus together with a new to be purchased EM24 should also create a zero power regulation
- If that runs cleanly, cancel the parallel operation in 6-12 month and sell the Senec storage
The goal is
- when my Senec battery is full and the zero regulation from the Multiplus / EM24 detects a feed that my MultiPlus charges the battery pack on the Multiplus
- if my Senec delivers power to the house grid (e.g. at night or at noon while cooking) and it does not manage to cover the power demand or is empty, that my MultiPlus II / EM24 detects a grid draw, the Multiplus also delivers power to the house.
- Would this be possible with a MultiPlus 2 and EM24?
- Can I set the MultiPlus 2 so that it does not start at 20 watts at the house connection and regulates to zero but at a higher threshold value, say only from 100 watts reference / feed? The background is that the two zero controls of the Senec and MultiPlus should not work against each other.
Why the whole thing?
I am extremely dissatisfied with my Senec and want to build a parallel battery, observe this over max. 1 year and then throw out the Senec. And because I have maximum flexibility with a MultiPlus (expand battery / etc.).
PS: hope you understand my terrible englisch, normaly i speak germany