Other ENC Documents

All other documents relating to ENCs are available here to download, including factsheets, proposals and consultations.

For more information, please contact [email protected]

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Following Brexit, NESO have been working with a market expert, Compass Lexecon, on the market options for Cross Border Balancing.  

The ESO and Compass Lexecon Cross Border Balancing webinar took place on 19 October 2023.  

In this webinar the ESO shared the results of the modelling of market options on Cross Border Balancing and allowed an opportunity to ask questions to both ESO and Compass Lexecon.

Watch the webinar here

Name Published
Cross Border Balancing Webinar presentation 2 Nov 2023

Consultations

Name Published
GB Pricing Methodology Consultation Cover letter 20 Mar 2025
GB Pricing Methodology Pro Forma 20 Mar 2025
GB Pricing Proposal Explanatory Document 20 Mar 2025
Draft GB Pricing Methodology V1.2 20 Mar 2025
Interconnector Framework Consultation Proforma Document January 2025 5 Feb 2025
Interconnector Framework Consultation January 2025 21 Jan 2025
Interconnector Framework Request for Input Document - extended to 7/12/23 5 Oct 2023
Interconnector Framework Request for Input Proforma - extended to 7/12/23 5 Oct 2023
DC Participation Guidance Document v4.0 1 Oct 2021
DC Service Terms v4.0 1 Oct 2021

Decision Letters, Associated Information, and Consultations

Name Published
GB Methodology Proposal - Decision Letter 23 May 2022
Decision Letter - Decision to grant ESO a derogation from CEP Article 6(9) for MFR and FFR 2 Mar 2022
Decision on MFR and FFR - Bundling and Procurement - Derogation from CEP exemption from Article 6(9) and Article 32(3) 4 Feb 2022
Decision to approve the proposal from the ESO to amend the existing ISHM 15 Dec 2021
Decision on the System Test Plan 2 Sep 2021
Decision to approve the market suspension and restoration rules and the settlement rules for market suspension 2 Sep 2021
Decision for NCER proposals regarding T and Cs, SGU list and High Priority SGU list 4 Aug 2021
Decision to grant an exemption to NGESO from requirement to implement an automatic Frequency Restoration Process 2 Aug 2021
ODFM EBR Art 18 decision 13 Apr 2021
ODFM CEP 6(4) decision 13 Apr 2021

Proposals (Pending Approval)

Name Published
System Restoration Plan Issue 6 8 Apr 2025
System Defence Plan Issue 6 8 Apr 2025
NGESO EBR A52 Proposed Methodology for Imbalance Settlement 18 Oct 2021
NGESO EBR A52 Report 18 Oct 2021
NCER Market Suspension Proposal 2 Sep 2021
Article 18 DC Cover Letter 03.02.21 10 Feb 2021
DC Tender Rules v.3 Feb 2021 Final Draft 9 Feb 2021
DC service terms Final Draft 9 Feb 2021
DC Participation Guidance Document Final Draft v5 2021 9 Feb 2021
DC GTC Final Draft v2 Feb 2021 9 Feb 2021

Terms and Conditions or Methodologies

Name Published
EU NCER System Test Plan 14 Jul 2025
Intermediate GB Synchronous Area + LFC Block Operational Methodology 14 Dec 2023
NGESO IC Commercial Compensation Methodology Updated V2.0 29 Sep 2023
Imbalance_Settlement_Methodology 15 Dec 2021
Imbalance Settlement Methodology changes 15 Dec 2021
NCER Market Suspension Proposal - Issue 4 8 Sep 2021
181218 02 All TSOs proposal aFRRIF explanatory document 18 Mar 2021
EBGL A26 BM and STOR 21 Dec 2020
EBGL A26 Dynamic Containment 21 Dec 2020
EBGL Article 18 Dynamic Containment Cover letter and Annexes 29 Sep 2020