Does SAPN intend to do anything with the DRED extensions in CSIP Aus?

    No, emergency curtailment control types are contained within the requirements which is a more effective way of managing systems going forward instead of using the DRED extension.

    In terms of "capable of dynamic exports", does this need to be tested on each site? Or the inverter/devices of choice need to be on the complaint list?

    Both compliant technology and site testing is required in order to meet dynamic export requirements. This two-factor appraoch covers both capability assurance and verification. 

    The capability site test has been designed to be as concise as possible in order to minimise the time taken for installers to complete. 

    How would a VPP operator that hasn't installed the battery or solar identify whether a customer has a dynamic or flexible export limit?

    If the VPP operator hasn't gone through the applications process, all of that information is contained within the connection agreement, which is between the customer and SA Power Networks. This information would need to be obtained from the customer participating in the VPP.

    How would a VPP operator identify what the site export limit is or will be in the future?

    There are a number of options to communicate site export limits, the most preferred method is direct to the VPP operator. Further modelling and explanation can be provided as required.

    Is on-site testing mandatory? Is there an option to run part of the tests off-site?

    Technology capabilities allow for testing to be conducted off-site, however, on-site testing is preferred as additional telemetry feedback and data is received via the installed equipment.

    How does SAPN define as a communications failure? X mins without an instruction?

    Communications failure is detailed in CSIP-Aus and can be defined as an occurrence where the device no longer has active controls to operate under and falls back to a default control. 

    This means that the device will control will continue to operate but at a static limit of 1.5kW. 

    Is SAPN making monitoring mandatory?

    Monitoring is not mandatory for the capability requirement although it is mandatory if a customer signs up for a Flexible Exports connection. 5 minute telemetry is specified in the documentation and further information about the new batching option can be found in most recent version of the handbook. This batching option is designed to minimise the frequency of communications between aggregators and SA Power Networks.

    What are the penalties? If a homeowner, switches his internet off?

    If the internet is switched off, the device will revert to the static 1.5kW failsafe. This means that the variable export connection agreement cannot be taken advantage of at this time until internet is restored.

    What happens when something goes wrong with a site? Who is responsible for identifying and resolving this?

    The chain of responsibility differs depending on the issue at hand (e.g. communications failure, house fire) but generally, it is the owner of the system who has chief responsibility. In the event that a system is not performing as expected, the customer would normally alert the installer to investigate and resolve.

    What is the requirement for legacy inverter installed in field without the dynamic export limiting capability ? How they will be managed post these changes?

    Requirements apply to new installations only; legacy inverters are not captured under the requirements. An exception to this is if an inverter needs to be replaced outside of warranty, it is then deemed a 'new install' and therefore must meet the requirements. Systems installed since September 2020 will have appointed a Relevant Agent empowered to disconnect the site as directed by the market operator in an emergency scenario.

    What is the troubleshooting process when the automated dynamic exports tests failed on-site?

    The installer will have visibility through the SA Power Networks' SmartInstall platform (available from here) once a capability test has been initiated. From a back-end perspective, export limiting commands are sent to site and in turn, telemetry data is sent back which is used to validate that all of the use cases are being met (e.g. comms failsafe and export limiting). If it is not possible to validate this telemetry correctly or data fields are missing, the installer will be notified whilst they are on-site.

    What’s stopping an installer bypassing the requirement by not bothering with any of it as it’s too onerous on them?

    SA Power Networks will be following up site compliance with individual solar retailers and installers through our existing compliance process found here.

    How does SAPN intend to police this compulsory onsite testing? If an installer does not do this who is responsible to chase up? Home Owner/DNSP/Manufacturer?

    SA Power Networks will be following up site compliance through our existing compliance process found here. The solar retailer will be responsible for ensuring that the sites they have installed are compliant with the requirements and onsite testing.

    Will an upgrade to the existing site, like expanding on the system require the legacy devices to also be compatible with Dynamic exports?

    As Flexible/Dynamic exports apply at the site level, all equipment on site would need to be able to adhere to the limit as described in the requirements. This means that legacy equipment unable to be managed to an export limit will not be compatible when the site is upgraded.