Gas Transmission Tariff Methodology – Tariff Network Code Article 28 Gas Year 2025/26 Consultation

Gas Networks Ireland (GNI) owns and operates Ireland’s gas transmission network, with regulated tariffs applying for its use. The CRU sets the methodology for calculating these tariffs, ensuring that GNI can recover its annual revenue while operating the network safely and efficiently. As part of the annual tariff-setting process, the CRU is consulting on the following key elements: Multipliers and seasonal factors, which influence the tariffs for non-annual capacity products (e.g., quarterly, monthly, and daily). These factors are designed to incentivize certain behaviours among gas system users. Discount levels, including adjustments for Virtual Reverse Flow (VRF)—a service allowing shippers to virtually flow gas between Ireland and Moffat/Gormanston on an interruptible basis. Interested stakeholders are invited to review the consultation document and responses should be submitted via the consultation platform by the close of business on Tuesday, 20th May 2025.