Yes, it is acceptable to have a Total Installed Inverter Capacity (TIIC) greater than the site MEC in certain circumstances by using a suitable Export Limiting Scheme (ELS). When the Total Installed Inverter Capacity is greater than the MEC, you are required to provide a Manufacturer’s Export Limiting Scheme (ELS) Product Declaration Form – you can find the template here. This needs to be completed and signed by the Manufacturer.

Following submission of the application, the level of MEC available on the existing network, or an outline of the reinforcement work required to enable a specific MEC, will only be determined by a specific technical study on the local network which will be completed as part of the process.

The results of these findings can be impacted by variables such as distance from the transformer, available capacity, harmonics, potential imbalance, etc. As such we advise customers to await the completion of this study and receipt of their connection offer prior to fully committing to the final details of their installation.