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On December 16, 2025, the CRU in Ireland announced the Final Determination for Price Review 6, approving €13.8 billion for ESB Networks and EirGrid from 2026 to 2030, which can rise to €18.9 billion with additional funding needs. This investment targets decarbonization and infrastructure upgrades amid increasing demand, driven by factors such as data centers.

Major projects include the North-South interconnector and enhancements in Dublin. Domestic network tariffs are expected to increase by €12 to €21 per year, resulting in a total rise of 15% to 28% from PR5 to PR6 as the network evolves to meet growing needs and renewable integration.