Hello, I'm new to both solar, batteries and this forum so I hope I have the right place to post my question. I'm in the UK.
I have been benefitting from a large solar array via Solis inverters and Pylontech batteries. They are working well. Recently I swapped to a utility tariff which has periods of cheap imports and high exports so have been experimenting with force charge and discharge at the advantageous times; again all is working well but I've noticed one anomaly:
The inverter dedicated to the batteries is rated at 3kw (Solis RAI-3K-48ES-5G). All settings are as set by the installer.
When charging from solar the rate (+/- a few watts) is 3.3kw
When discharging at max for house consumption the rate is 3.0kw.
When charging from the grid the rate is 2.7kw.
When discharging to the grid the rate is 2.6kw.
My question is: why the lower rates when charge / discharge is forced from / to the grid?
Thanks.
I have been benefitting from a large solar array via Solis inverters and Pylontech batteries. They are working well. Recently I swapped to a utility tariff which has periods of cheap imports and high exports so have been experimenting with force charge and discharge at the advantageous times; again all is working well but I've noticed one anomaly:
The inverter dedicated to the batteries is rated at 3kw (Solis RAI-3K-48ES-5G). All settings are as set by the installer.
When charging from solar the rate (+/- a few watts) is 3.3kw
When discharging at max for house consumption the rate is 3.0kw.
When charging from the grid the rate is 2.7kw.
When discharging to the grid the rate is 2.6kw.
My question is: why the lower rates when charge / discharge is forced from / to the grid?
Thanks.