Hey guys,
we are about to build a house and of course I am already thinking about the PV system with a DIY Battery Bank.
At the moment I have a 2x7s60p 9kWh 24V battery and would like to use it with a MPPSolar Inverter.
A few things I do not understand however yet.
In the Offgrid case:
1 How can I make sure that the battery is not overloaded?
E.g. I would charge the battery a maximum of 3kW, but the inverter can charge 4kW (4024MSP)?
2. or if the load is greater than 4kW, what happens then? Does the fuse blow? Or the bypass is enabled (how much power can you use with the bypass mode, all the grid power^^?)
3. Or just overdimension everything, so you can take all the load?
With the hybrid:
1. can I feed the inverter from the battery constantly (e.g. 1kW) into the house grid to cover the base load? And take the entire PV energy for load and battery during the day?
2. Is it possible to not feed anything into the public grid with the hybrid inverter, but use the internal house grid?
Shall I switch to 48V?
How do you all do it? This is much more complicated as I thought :s
we are about to build a house and of course I am already thinking about the PV system with a DIY Battery Bank.
At the moment I have a 2x7s60p 9kWh 24V battery and would like to use it with a MPPSolar Inverter.
A few things I do not understand however yet.
In the Offgrid case:
1 How can I make sure that the battery is not overloaded?
E.g. I would charge the battery a maximum of 3kW, but the inverter can charge 4kW (4024MSP)?
2. or if the load is greater than 4kW, what happens then? Does the fuse blow? Or the bypass is enabled (how much power can you use with the bypass mode, all the grid power^^?)
3. Or just overdimension everything, so you can take all the load?
With the hybrid:
1. can I feed the inverter from the battery constantly (e.g. 1kW) into the house grid to cover the base load? And take the entire PV energy for load and battery during the day?
2. Is it possible to not feed anything into the public grid with the hybrid inverter, but use the internal house grid?
Shall I switch to 48V?
How do you all do it? This is much more complicated as I thought :s