Selectronic Certified Solar Inverters

Selectronic Managed AC Coupling

To utilise all of the possibilities of an SP PRO, it needs to work with a Selectronic Certified solar inverter.

These inverters contain hardware and software to enable direct communication with the SP PRO. This means that the SP PRO has control of the flow of energy from the solar panels with as fine control as 0.1% steps. This is known as Managed AC Coupling technology which was developed by Selectronic in 2010, and cannot be achieved with a generic solar inverter.

The Selectronic Certified solar inverter can be considered as an AC MPPT. By creating an AC Bus, an AC coupled system will allow PV energy to be efficiently used directly by the load with excess PV energy going back through the multi-mode SP PRO to charge batteries or export to the grid.

A maximum of five (5) Selectronic Certified inverters can be controlled by any single SP PRO, but the total AC output of the combined solar inverters must not exceed twice the continuous power rating of the SP PRO, or the SP PRO 30 second rating, whichever is smallest.

When using a Selectronic Certified solar inverter, site consumption and generation data will be logged by the SP PRO including the AC coupled solar production.

When to use Selectronic Certified solar inverters

We recommend a Selectronic Certified solar inverter for maximum system efficiency and flexibility, however one must be used with an SP PRO in the following situations:

Off-grid AC coupling
Solar Hybrid AC coupling with Fixed Export Limit requirements (with or without batteries)
Solar Hybrid AC coupling where twice the PV to SP PRO rating is required

Want solar but not ready to add battery storage?

Using a Selectronic Certified solar inverter allows you to have a grid-tie solar power system today and add a fully managed battery storage system at a later date. This is a cost-effective, future ready solution.

Benefits of using Selectronic Certified:

The total AC output of the combined solar inverters can be up to twice the continuous power rating of the SP PRO or the SP PRO 30 second rating, whichever is smallest.
Maximise battery life via precise charging control
No frequency variations to the loads.
All system data is captured by SP LINK software
Full support from Selectronic

Currently we have Selectronic Certified inverters from both ABB and Fronius.

BR0019_03 Selectronic Managed AC Coupling Data Sheet Oct 2022 (PDF 2.25 MB)