Electricity transmission price control 2026 to 2031 (RIIO-ET3) guidance

Publication type:
Guidance
Publication date:
Last updated:
Topic:
Energy network price controls,
Electricity transmission
Subtopic:
RIIO-T3: transmission price control 2026 to 2031
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Guidance for electricity transmission network companies to use as part of their licence conditions to move energy throughout England, Scotland and Wales.

Details

Use this guidance and the Network price control 2026 to 2031 (RIIO-3) guidance to comply with your licence.

Documents

Community Funds for Electricity Transmission Infrastructure Pass-Through [PDF, 196.72KB]
Independent Technical Adviser (ITA) Guidance Document [PDF, 281.47KB]
Load use it or lose it governance document [PDF, 149.98KB]
System operator: transmission owner optimisation governance document [PDF, 446.63KB]
ET2/ET3 Crossover Submission Requirements and Guidance Document [PDF, 180.66KB]
CSNP Coordination Governance Document [PDF, 236.22KB]
Major Projects ODI-F Governance Document [PDF, 333.14KB]
Closely Associated Indirects Use-it-or-lose-it Governance Document [PDF, 136.54KB]
CSNP Re-opener Guidance and Submissions Requirements Document [PDF, 307.89KB]
Load Re-opener Guidance and Submission Requirements Document [PDF, 1.08MB]
Advanced Procurement Mechanism (APM) Governance Document [PDF, 462.89KB]
Innovative Delivery Incentive Guidance Document [PDF, 393.48KB]
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Related links

Modifications to additional RIIO-3 associated documents

All updates

2 October 2026 uploaded version 1.3 of Advanced Procurement Mechanism (APM) governance document
7 October 2026 added Innovative Delivery Incentive Guidance Document