Derogation D0001 - Hydrogen Blending: An NTS Transportation and Power Station Consumption Demonstration.

Last updated: 
28 January, 2026
Current version
1.0
Proposer
National Gas Transmission
Impacted codes
UNC
Status:
Implemented
Impact:
High impact: National Gas Transmission

Purpose of Derogation Application (Specify associated Use Case):

This UNC Derogation request will remove potential UNC constraints for the successful trial of new technologies or other technological advances, and Special Condition 1.1(d) ‘a change in the pace or nature of the uptake of low carbon technologies’, aligning with the UNC Derogation relevant Use Case (Net Zero).

Successful implementation of the associated trial took place in October 2025: https://www.nationalgas.com/media/news/trials-transformation-how-blending-hydrogen-will-unlock-britains-hydrogen-economy 

Timeline

Raised
Yes
04/12/2024
Panel Assessment
Yes
19/12/2024
Workgroup Report Due
Unset
19/06/2025
Consultation
Completed
20/12/2024
31/01/2025
Consultation - Final Modification Report
Yes
03/02/2025
Panel Decision
Yes
20/02/2025
Status

Sent to Ofgem 21/02/2025

Authority Decision
26/09/2025
Implementation
Completed