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EV and HP Installers

GTC is digitalising! The SUREconnect portal is now live and enables installers to manage and view their EV applications online.

For Vehicle to Grid and Heatpump applications please complete the ENA application form and email to

Installers of Electric Vehicles or Heat Pumps are required to notify their Independent Distribution Network Operator (IDNO), or if the combined system load exceeds a certain level, to apply for a connection. We will normally respond within 10 days, provided all required data has been submitted.

This process helps IDNOs to ensure that the system has sufficient capacity and can continue to operate in a safe and reliable manner. It can provide assurance to third parties that all appropriate checks have been carried out and, in some instances, may be a requirement of household insurance cover.

The connection process has been developed by the Energy Networks Association (ENA), the main industry body that represents DNOs and IDNOs including GTC.

The ENA website also includes guidance for installers on assessing the capacity of existing services to buildings. Most domestic services provided by GTC are 100A single phase (230V), but some 80A or 60A services may exist. Older services from other DNOs may be rated less than this. 

We encourage EV installers to use our new SUREconnect portal.

For further information from the ENA please click here.

Completed V2G & HP notification forms and enquiries can be sent to

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More info