CMP328: Connections Triggering Distribution Impact Assessment

There are cases where Transmission connections can have an impact on the Distribution system. An example of this is the connection of generation to the tertiary winding of the Grid Supply Point (GSP). In these cases, the Distribution Network Operator (DNO) must carry out an impact assessment to identify any impact on the Distribution system and any operational restrictions that may be required, National Grid Electricity System Operator (NGESO) propose to utilise the Third Party Works process to facilitate this process; however, there are significant shortfalls in applying the Third Party Works process in this scenario. This modification proposes to put in place an appropriate process to be utilised when any connection triggers a Distribution impact assessment. Ensuring the process in place for such connections, best reflects the necessary contractual relationship of parties involved.

Modification status:
Current - Pending Decision
Last updated:
16 April 2024

Update: 16 April 2024

SSE the proposer of CMP328 has withdrawn as proposer of the modification.

Proposer's justification for withdrawal: Following discussions with ESO Team regarding the impact of the proposed changes as consequence of ESO Connections Reform to this CUSC Modification, it seems that it shall no longer be possible to progress as intended due to incompatibilities identified between these.

If you would like to become the official proposer of CMP328, please get in touch with us at [email protected] by 5pm on 23 April 2024.

If no support is received, the Proposer's request to withdraw CMP328 will be presented at the CUSC Modifications Panel on 26 April 2024 and if the Panel agrees this modification will be officially withdrawn.

 

Code Administrator Contact: Elana Byrne - [email protected]

Governance Route: Standard Governance

Impacts:

* Medium: Distribution Network Operators (DNO), ESO and Transmission Users. This proposed Connection and Use of System Code (CUSC) Modification would only affect those who connect in the future. It will have no impact on those already connected.

Code modification proposed by:
Joanna Knight

Documents