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Fixed v Flexible

A new solar connection option

Our goal is to accommodate more solar on our network while providing a secure and reliable electricity supply for all.

SA Power Networks is introducing new connection options for new and upgrading small embedded generation solar customers in parts of the network that are becoming significantly overloaded with solar at certain times of the year.

These customers will be able to select from either a Flexible Exports option, where their export limit will vary up to 10kW per phase – based on SA Power Networks’ assessment of network capacity in the area in which the customer is located - or customers can choose a permanent fixed export option of 1.5kW per phase.

Watch our video below to learn more.

Flexible Exports for Installers video transcript (PDF 652KB)

 As part of a 12-month trial, these new connection options will be introduced in mid-2021, for new solar customer wishing to connect to the network in selected network areas that are identified as overloaded.

Once the initial trial is complete, SA Power Networks expects to provide customers who are connecting to other overloaded areas of the network with access to Flexible Exports (date to be announced).  Over time, we plan to expand the service so that all customers can get access to higher export limits if they wish.

For now, there will be no change for existing solar customers, or for new and upgrading customers who are connecting to a part of the network that is not overloaded.

The new options for overloaded areas of the network are as follows:

Flexible Export limit

  • Enabled by smart internet-connected inverters – these receive regular export limit updates from SA Power Networks, and match exports to available grid capacity.
  • Variable export limit that automatically adjusts between 1.5kW up to 10kW per phase (subject to available network capacity at the customer’s location throughout the day and the performance of the customer’s system).

During limited periods, export limits will be lowered to avoid overloading the network.

Fixed Export limit

  • Fixed export option of 1.5kW per phase (vs the current 5kW per phase)
  • Permanent and fixed limit, all year round.