PMR
New Member
Hope someone can provide a little guidance on this as my installer has been unable to figure this out despite many site visits and attempts to resolve.
I had a single phase Solax X1 hybrid inverter system installed with a Master & Slave arrangement on 2 x 3kW inverters, with 2 x 5.8kWh Triple power batteries (and 1 solar string) linked to each inverter.
I have been having persistent problems with both inverters not delivering the expected level of performance in terms of kWh delivered from the batteries. I would expect from the arrangement in place that the stated capacity of 23.2kWh (5.8kWh x 4) should actually give me somewhere in the region of 20kWh of usable storage when I take off the 12% min SOC that the inverters are set at and also a bit more for the round trip efficiencies. In reality I am getting roughly 15 - 16kWh of usable capacity from the system.
My observations are:
The master inverter (controlling 2 x 5.8kWh batteries) is delivering in the region of 9kWh which is lower than the circa 10kWh expected.
The slave inverter (controlling a further 2 x 5.8kWh batteries) is delivering in the region of 6.5kWh of usable storage, significantly lower than the 10kWh expected.
I can see when I look at the overnight charge cycle on cheap rate that 1 inverter charges for roughly 3 hours and the other inverter charges for roughly 2 hours, which does stack up regarding the capacity seen - 3kW inverter charging for 3hrs & 2hrs = circa 9kWh and 6kWh respectively.
Has anyone come across this scenario or can offer some advice as this has been dragging on too long and I just want a system that works and delivers the manufacturer stated performance (or at least within a few percent of it!!).
Many thanks
I had a single phase Solax X1 hybrid inverter system installed with a Master & Slave arrangement on 2 x 3kW inverters, with 2 x 5.8kWh Triple power batteries (and 1 solar string) linked to each inverter.
I have been having persistent problems with both inverters not delivering the expected level of performance in terms of kWh delivered from the batteries. I would expect from the arrangement in place that the stated capacity of 23.2kWh (5.8kWh x 4) should actually give me somewhere in the region of 20kWh of usable storage when I take off the 12% min SOC that the inverters are set at and also a bit more for the round trip efficiencies. In reality I am getting roughly 15 - 16kWh of usable capacity from the system.
My observations are:
The master inverter (controlling 2 x 5.8kWh batteries) is delivering in the region of 9kWh which is lower than the circa 10kWh expected.
The slave inverter (controlling a further 2 x 5.8kWh batteries) is delivering in the region of 6.5kWh of usable storage, significantly lower than the 10kWh expected.
I can see when I look at the overnight charge cycle on cheap rate that 1 inverter charges for roughly 3 hours and the other inverter charges for roughly 2 hours, which does stack up regarding the capacity seen - 3kW inverter charging for 3hrs & 2hrs = circa 9kWh and 6kWh respectively.
Has anyone come across this scenario or can offer some advice as this has been dragging on too long and I just want a system that works and delivers the manufacturer stated performance (or at least within a few percent of it!!).
Many thanks