Operational Data
Access gas demand reports, transparency and capacity data, balancing reports, forecasts, market data publications and auction calendars.
NI Gas Demand Report
Operational Data
Operational Data provides transparency and insight into the performance, capacity, and usage of the Northern Ireland gas transmission network. This section brings together key datasets, reports, and publications to support market participants, stakeholders, and the public in understanding network operations, demand trends, and regulatory compliance.
All data is published in line with relevant regulatory requirements to ensure accessibility, consistency, and transparency across the gas market.
Transparency Data
All fundamental data from 1st October 2013 onwards is published in accordance with the Transparency Guidelines under Schedule 3 of SI No. 543 The Electricity and Gas (Market Integrity and Transparency) (Amendment) (EU Exit) Regulations 2019.
Incremental Capacity
The incremental process comprises several phases, each with specific requirements that must be met before an incremental project can be initiated and new capacity developed.
This process takes place at least every odd-numbered year and begins with the demand assessment phase. This phase starts with a market demand assessment conducted by the Transmission System Operators following the annual yearly capacity auction. GMO NI will administer this stage on behalf of Premier Transmission Limited for the Moffat Interconnection Point and on behalf of GNI(UK) Limited for the South North Interconnection Point.
In accordance with section 4.2 of the NI Network Gas Transmission Code, Shippers are invited to submit Non-Binding Demand Indications (NBDIs) for Incremental Capacity using the template provided below. The template also outlines the applicable submission fees.
To date, no NBDIs have been received for either Interconnection Point during previous application windows. For further information, please refer to the relevant Market Demand Assessment Report.
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Market Demand Assessment Reports Demand Assessment Report For Incremental Capacity (GNI-GNIUK) Demand Assessment Report For Incremental Capacity (GNI-GNIUK) Demand Assessment Report For Incremental Capacity (GNI-GNIUK) Demand Assessment Report For Incremental Capacity (GNI-GNIUK) Demand Assessment Report For Incremental Capacity (NGG-PTL) Demand Assessment Report For Incremental Capacity (NGG-PTL) Demand Assessment Report For Incremental Capacity (NGG-PTL) Demand Assessment Report For Incremental Capacity (NGG-PTL)
NI Balancing Gas Reports
Access historic annual Balancing Gas Reports, detailing the gas purchases and sales undertaken to balance the NI gas transmission network.
Published in accordance with Schedule 2 of SI No. 531
Technical Capacity Register
The Technical Capacity Register provides details of the technical capacity available at Entry and Exit Points across the Northern Ireland gas transmission network, taking account of operational, system integrity and contractual requirements.
NDM Forecast Accuracy Report
GMO NI publishes the NDM Forecast Accuracy Report on behalf of Premier Transmission Limited. The report assesses the accuracy of forecasts for Non-Daily Metered (NDM) gas demand and supports transparency in the operation and balancing of the Northern Ireland gas transmission network.
The report is produced in accordance with applicable gas balancing requirements and is prepared using forecast information provided by Northern Ireland’s gas distribution network operators.
CAM NC Auction Calendars
The CAM NC Auction Calendar sets out the timetable for entry capacity auctions conducted in accordance with the Capacity Allocation Mechanisms (CAM) framework.