Hi,

Has anybody installed one of these inverters?

I am trying to understand the working of it.

The standard Infinisolar inverter has the capability to combine load supply sources, in other words if the load is 2kW and the available PV is at 1kW, the 1kW from the PV will be used to power the load whilst only 1kW is drawn from the grid or from the battery - which makes it quite effective, as one can always use the maximum energy available from the PV and only draw in the shortage/balance from the grid.  Setting the grid as second supply source, means the batteries can be used exclusively for back-up whilst obtaining the maximum possible energy savings from the solar PV panels.

The Axpert inverter range has the disadvantage of not being able to combine load supply source, meaning that if the setting is at SOL, it will jump back to the grid, bypassing the PV energy completely should the load exceed the available PV input power - making it less efficient, or if it is set to SBU, the batteries will be used to stabilize the system, but then one cycles your batteries much more, reducing their life span (especially with a smaller battery capacity).  This either grid, or PV, or PV/Batterye logic is one major disadvantage of the Axpert range.

Now, I have downloaded the manual on the Infinisolar E 5.5, which seems like a nice inverter, but the user interface, displays and settings seems to be similar to that of the Axpert, but this inverter features the bidirectional (grid feed-in) capability.  It is not clear to me if the logic of this unit is the same as the standard Infinisolar ranges (meaning that it can combine grid and PV inputs simultaneously, providing maximum potential savings) or if it is the same logic as what the Axpert uses (meaning that the loads are either supplied by the PV/batteries or by the grid, but not combined)?

If anybody can assist me with this I would greatly appreciate it.

One more question, the standard Infinisolar inverters can also work as a grid-tied / PV inverter without batteries.  The Infinisolar 3k Plus also provides back-up directly from the sun (without any batteries connected) in the event of a grid power failure, provided that the PV input exceeds the AC output (load).

Will this model (Infnisolar E 5.5) also work without any batteries, or does it require batteries to switch on like the Axpert?

 

Thank you!

Nobody with any experience on this model?

Welcome Frodo.

Either there is no one or no-one saw your post.

There has been some questions about the reliability and backup support around Infini's on the forum ... or I got the brand names mixed up.

Edited March 27, 20197 yr by Guest

On 2019/03/23 at 7:15 AM, Frodo said:

 

The Axpert inverter range has the disadvantage of not being able to combine load supply source, meaning that if the setting is at SOL, it will jump back to the grid, bypassing the PV energy completely should the load exceed the available PV input power - making it less efficient, or if it is set to SBU, the batteries will be used to stabilize the system, but then one cycles your batteries much more, reducing their life span (especially with a smaller battery capacity).  This either grid, or PV, or PV/Batterye logic is one major disadvantage of the Axpert range.

 

Hi Frodo,

Are you sure the full range of AXPERT inverter, is NOT able to combine the load supply? I have trying to confirm this one issue, but the uncertainty is whether the newer AXPERT KING series, is also unable to combine load supply or not?

On 2019/03/23 at 7:15 AM, Frodo said:

 

Now, I have downloaded the manual on the Infinisolar E 5.5, which seems like a nice inverter, but the user interface, displays and settings seems to be similar to that of the Axpert, but this inverter features the bidirectional (grid feed-in) capability.  It is not clear to me if the logic of this unit is the same as the standard Infinisolar ranges (meaning that it can combine grid and PV inputs simultaneously, providing maximum potential savings) or if it is the same logic as what the Axpert uses (meaning that the loads are either supplied by the PV/batteries or by the grid, but not combined)?

If anybody can assist me with this I would greatly appreciate it.

The one feature I know the INFINISOLAR E5.5 cannot do is the parrallel option.