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G99 Fast track applications

WPD offer a fast-track application process for connecting energy storage devices that meet certain defined criteria. If your energy storage scheme relates to a single phase connection where there is either:

  • an existing PV installation (or other DG type) that conforms with ERG99 requirements and you wish to install a battery storage device via a separate ERG99 type tested inverter; or
  • you wish to install both a new PV (or other DG type) scheme and battery storage device via two separate ERG99 type tested inverters

then subject to meeting further eligibility requirements, you may utilise the fast-track process.

Eligibility requirements
Are you applying to connect at a single property?
Is the combined installed capacity of your generation and battery storage devices less than 32A per phase?
Is the individual capacity of each of your generation and battery storage devices less then 16A per phase?
Will your export capacity be limited to a maximum of 16A per phase via an export limiting device that is compliant with ERG100?
Will both your generation and battery storage devices be connected via ERG99 type tested invertors?
Will both your generation and battery storage devices be prevented from operating in island mode, i.e. when there is no mains supply?

If you answer ‘No’ to any of the above questions you will need to apply under the conventional ERG99 route.

If you answer ‘Yes’ to all of the above questions, you may proceed with a fast-track application.

What happens next?

Once you are confident that you wish to proceed, please complete and submit an application form. For following flowchart outlines the steps required for a G99 Fast Track application:

Application next steps

How do I apply?

To make an application for connection, you may download an Application Form or contact your nearest applications team and ask us to send an application to you.