Electricity Transmission Network Allowed Revenues for 2026 and TUoS Tariffs for 2025-26 – Information Paper
Electricity Transmission Network Allowed Revenues 2026 / Demand Transmission Use of System (D-TUoS) Tariffs 2025/2026
The CRU has published an Information Paper on the Electricity Transmission Network Allowed Revenues for 2026 and the associated Demand Transmission Use of System (D-TUoS) tariffs for the 2025/2026 tariff year.
The final 2026 allowed revenues of €1,389.79m (nominal) lead to a tariff year revenue of €1,395.64m, which is to be recovered during the tariff period from 1 October 2025 to 30 September 2026. This represents a decrease of approximately 1.6% compared to the €1,412.08m approved for recovery in the previous year (2024/25). Conversely, it is an increase of about 6.5% relative to the €1,310.80m approved for recovery in the 2024/25 tariff year.
This year's revenue and tariff process marks a transitional phase between Price Review Five (PR5) and Price Review Six (PR6). The allowed revenue calculations from PR5 (2025) and the CRU’s PR6 Draft Determination assessment (2026) collectively determine the revenue to be recovered through electricity network tariffs over the period from 1 October 2025 to 30 September 2026.
As part of this process, the CRU has approved several adjustments to the Draft Determination revenues, including provisions related to Article 13.7 of the Clean Energy Package and Security of Supply.
The transmission Average Unit Price (AUP) for 2025/2026 is estimated at 4.03c/kWh, representing an increase of about 3% relative to the current AUP. The combined transmission and distribution AUP for this period is estimated at 7.73c/kWh, an increase of approximately 6% compared to the current AUP.
In terms of bill impact, the combined transmission and distribution impact is estimated to increase a typical domestic customer's bill by about €29 annually (or €2.40 per month) for the 2025/26 tariff year. This increase is driven by three main factors: (i) allowances from the Price Review Six Draft Determination for 2026, (ii) adjustments following the 2026 revenue and tariff process, and (iii) updates to model inputs, including revised demand forecasts and cost parameters.
The D-TUoS tariffs are charged to suppliers, who may choose how or whether to pass them on to their customers. A customer's annual bill depends on other factors such as wholesale market costs (affected by international commodity prices), capacity market costs, and other system costs.
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