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AER - Prefilled indicative Basis of Preparation - Electricity distributor - 2025-26

XLSX (17.14 KB)

AER - Prefilled indicative Basis of Preparation - TNSP - 2025-26

XLSX (14.54 KB)

AER - Prefilled indicative Basis of Preparation - Interconnector - 2025-26

XLSX (13.72 KB)

AER - Prefilled indicative Basis of Preparation - PWC - 2025-26

XLSX (17 KB)

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Basis of Preparation

Step

In response to issues raised seeking guidance on the Basis of Preparation referencing, we have prepared prefilled Basis of Preparation files for the NSPs. These files have Data Submission Workbook tables prefilled to help NSPs meet the Basis of Preparation requirements, set out in section 5 of the Annual Information Orders.