Publications

This is the inaugural version of the Northern Ireland Gas Transmission Outlook (NI GTO) which is published in accordance with condition 2.13 (Network Forecasts) of the TSO’s gas conveyance licences. The NI GTO provides a ten-year outlook of transmission network requirements and replaces the previous Northern Ireland Gas Capacity Statement (NI GCS)

Mutual Energy Limited (MEL) and GNI (UK) Limited, working together through the Gas Market Operator for Northern Ireland (GMO NI), are responsible for gas transmission network planning in Northern Ireland. As the energy system evolves, planning must adapt. 

The Climate Change Act (Northern Ireland) 2022 sets legally binding targets, including net zero emissions by 2050 and at least 80% renewable electricity by 2030. Delivering the energy transition requires coordination across all energy systems and therefore it is important that gas network operators work collaboratively with SONI to align planning where appropriate to support the efficient development of future energy infrastructure.

The NI GTO will continue to evolve, supporting informed decision-making and confidence in the transition to net zero.

The NI GTO 2025-26, along with previous editions of the Northern Ireland Gas Capacity Statement are available below.