Hi,
General query if I am exporting the battery to Grid at for example 4KW and I am generating over 4KW via solar, does the solar will charge the battery at the same time the battery is exporting to grid.
Thanks
Battery export to grid and solar charge simultaneously
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Dave Foster
- Posts: 1786
- Joined: Thu Oct 13, 2022 7:21 pm
The solar will always cover any house load first and then charge the battery if you are in the normal Self-Use mode, any surplus over the maximum battery charge power or if the battery is full will then go to export.
If you change workmode to feed-in the solar will cover house load first and then export the rest to the grid and the battery will not be charged unless you hit your inverters max power limit or any DNO agreed export limit.
If you change workmode to feed-in the solar will cover house load first and then export the rest to the grid and the battery will not be charged unless you hit your inverters max power limit or any DNO agreed export limit.
No, it won't as you can't be in two work modes at the same time. If you were for example force discharging then it will send out all PV and whatever is required from the batteries to get to the inverter AC maximum.
For example, if you are generating 3kW and have a 5kW inverter, it would send out all of the solar plus 2kW from the batteries to hit the 5kW limit (after house load). This is of course assuming force discharge is set to the maximum of 5kW.
If you have more solar PV than the inverter size, it will see to the house load, send out all of the PV up to the 5kW and clip the rest, but not touch the battery.
For example, if you are generating 3kW and have a 5kW inverter, it would send out all of the solar plus 2kW from the batteries to hit the 5kW limit (after house load). This is of course assuming force discharge is set to the maximum of 5kW.
If you have more solar PV than the inverter size, it will see to the house load, send out all of the PV up to the 5kW and clip the rest, but not touch the battery.
Thanks for the information Reef, what is meant by "clip the rest", does this mean its lost?
I wanted to understand what happens in a scenario where "Force Discharge" enabled with "FD Pwr" set to 2000W and PV is generating 3.5kw? Does this mean 2KW is exported to grid + 3.5KW (total 5.5KW) ?
The reason I have set FD Pwr to 2KW is the maximum export is 6KW limit I am wanting to utilise both battery and PV to export to grid to remain within 6KW limit.
I wanted to understand what happens in a scenario where "Force Discharge" enabled with "FD Pwr" set to 2000W and PV is generating 3.5kw? Does this mean 2KW is exported to grid + 3.5KW (total 5.5KW) ?
The reason I have set FD Pwr to 2KW is the maximum export is 6KW limit I am wanting to utilise both battery and PV to export to grid to remain within 6KW limit.
Clipped means lost as heat, yes. Not sure about the rest of your question as I don't use the force discharge options myself.