Utility Regulator publishes Decision Paper on SONI Transmission Development Plan 2020-2029

31 March 2021

The Utility Regulator has today published its decision paper approving the Transmission Development Plan 2020-2029 (TDPNI).

The TDPNI is SONI’s annual report setting out the planned development to be carried out by SONI and NIE Networks on the Northern Ireland electricity transmission system over the next ten years. This is work that is required to maintain the system and to enable the energy transition and further decarbonisation of our energy usage.

We consulted on the draft TDPNI earlier this year, and published our response to the consultation before submitting the document to the Regulator, who consulted on it again. Thank you to all who provided feedback.

The final document is available here.

We will now commence work on TDPNI 2021 – 2030 which we plan to publish for consultation later this year.