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C16 statements and consultations

We are required to establish statements and guidelines in accordance with special condition C16 of the statements of the transmission licence. On this page you will find all C16-related documents, including consultations.  

Latest statements

These are the latest versions of C16-related statements and guidelines.

Procurement GuidelinesBalancing services adjustment data (BSAD)Balancing principles statement reportSystem management action flaggingSystem management action flagging (SMAF) reportApplicable balancing services volume data (ABSVD)Balancing Principles Statement

Procurement Guidelines

Name
Procurement Guidelines Report 2019-20
Procurement Guidelines effective from 8th June 2020
Procurement Guidelines effective from 1 April 21
Procurement Guidelines Report 2020-21
4

Balancing services adjustment data (BSAD)

Name
BSAD Methodology Statement Effective from April 2020
BSAD Methodology Statement effective from 1st April 2019
BSAD Methodology Statement v14 Effective from 1 April 2017
BSAD Methodology Statement v15 Effective April 2018
BSAD Statement effective from 1 April 21
BSAD Statement effective from 30th April 2021
6

Balancing principles statement report

By accessing these reports, you are agreeing to our terms and conditions.

Published Sort ascending Name
23 Oct 2020Balancing Principles Statement Report 2018-19
14 Aug 2020Supplement to the Balancing Principles Statement Report 2018-19
14 Aug 2020Balancing Principles Statement Report 2017-18
16 May 2019Supplement to the Balancing Principles Statement Report 2017-18
26 Feb 2019Supplement to the Balancing Principles Statement Report 2016-17
31 May 2018Balancing Principles Statement Report 2016-17
21 Jul 2017Balancing Principles Statement Report 2015-16
14 Feb 2017Balancing Principles Statement Report 2014-15
13 Feb 2017Supplement to the Balancing Principles Statement Report 2015-16
19 Dec 2016Balancing Priciples Statement Report 2013-14
19 Dec 2016Balancing Principles Statement Report 2012-13
12 Dec 2016Supplement to the Balancing Principles Statement Report 2014-15
10 Jun 2015Supplement to Balancing Principles Statement report September 2014
28 May 2014Supplement to Balancing Principles Statement report September 2013
14

System management action flagging

Name
SMAF Methodology Statement Effective from April 2020
SMAF Methodology Statement effective from 1st April 2019
SMAF Methodology Statement v9 Effective from 1 April 2017
Flagging Accuracy Report May 2012 - April 2013
SMAF Methodology Statement v10 Effective April 2018
SMAF Statement Effective 1 April 21
6

System management action flagging (SMAF) report

Published Sort ascending Name
9 Jun 2021SMAF Flagging Accuracy Report 2020-21
27 May 2020SMAF Flagging Accuracy Report 2019-20
21 May 2019SMAF Flagging Accuracy Report 2018-19
6 Jun 2018SMAF Flagging Accuracy Report 2017-18
6 Sep 2017P217 Flagging Accuracy report - 2013-14
6 Sep 2017SMAF Flagging Accuracy Report 2014-15
10 Jul 2017Flagging Accuracy Report May 2012 - April 2013
6 Jul 2017SMAF Flagging Accuracy Report 2016-17
26 May 2017SMAF Flagging Accuracy Report 2015-16
31 Oct 2013SMAF Flagging Accuracy Report 2012-13
31 Oct 2013SMAF Flagging Accuracy Report 2010-11
31 Oct 2013SMAF Flagging Accuracy Report 2011-12
12

Applicable balancing services volume data (ABSVD)

Name
ABSVD Methodology Statement effective from May 2020
ABSVD Methodology Statement effective from April 2020
ABSVD Methodology Statement effective from April 2019
ABSVD Methodology Statement v7_0 Effective from 1 April 2017
ABSVD Methodology Statement v8 Effective April 2018
ABSVD Statement Effective from 1 April 21
6

Balancing Principles Statement

Name
Balancing Principles Statement April 2020
BPS Statement Effective 1 April 21
2

C16 Consultations

On an annual basis, we undertake consultations in respect of the C16 statements. Where applicable we may be required to undertake additional consultations outside of the standard annual review.

C16 Additional Review Consultation for BSAD Methodology StatementC16 Consultation 2020-21C16 Presentation 19-20C16 Procurement Guidelines Consultation 20202019-2020 C16 Consultation

C16 Additional Review Consultation for BSAD Methodology Statement

Name
C16 Additional Review BSAD Methodology Consultation
BSAD Methodology Statement 2021 tracked changed for consultation
C16 Additional Review BSAD Methodology Consultation Proforma
3

C16 Consultation 2020-21

Name
C16 Early Consultation Proforma (NOW CLOSED)
C16 Early Consultation 2020-21 (NOW CLOSED)
C16 Official Consultation Proforma
C16 2020-21 Official Consultation
4

C16 Presentation 19-20

Name
C16 Industry Form 5th November slide show
1

C16 Procurement Guidelines Consultation 2020

Name
Feedback Proforma C16 Procurement Guidelines Consultation 2020
Procurement Guidelines 2020 track changed for consultation
Consultation Document C16 Procurement Guidelines 2020
3

2019-2020 C16 Consultation

Name
C16 19-20 Early Consultation Document (Consultation Now Closed)
C16 19-20 Early Consultation Form (Consultation Now Closed)
ABSVD Methodology Statement Track Changed 2020-21
Balancing Principle Statement Track Changed 2020-21
BSAD Methodology Statement Track Changed 2020-21
SMAF Methodology Statement Track Changed 2020-21
Procurement Guidelines Track Changed 2020-21
C16 Consultation Proforma Official Consultation (Consultation is now closed))
C16 Official Consultation 19-20 (Consultation is now closed))
Methodology for GB Commercial Arrangements relating to Interconnector Capacity Calculation
Responses to the comments in relation to the consultation on Interconnector Capacity Calculation
C16 Report to Authority for 2020
12

Past C16 consultations

2017-18Consultation 18-192017 ABSVD Informal2016-172015-162014-152013-142012-132011-122010-112009-10

2017-18

Name Sort descending
ABSVD Appendix A ABSVD Tracked Changes
ABSVD Appendix B Response Proforma
ABSVD consultation 2017-18
ABSVD Report to Authority Appendix A tracked change methodology
ABSVD Report to Authority Appendix B Consultation document
ABSVD Report to Authority Appendix C Consultation comments and responses
ABSVD Report to Authority Appendix D ADE response
ABSVD Report to Authority Appendix D EDF response
ABSVD Report to Authority Appendix D Elexon response
ABSVD Report to Authority Appendix D Engie response
ABSVD Report to Authority Appendix D ENW response
ABSVD Report to Authority Appendix D FGG response
ABSVD Report to Authority Appendix D Npower response
ABSVD Report to Authority Appendix D Smartest response
Appendix A BSAD tracked changes
Appendix B PG tracked changes
Appendix C SMAF tracked changes
Appendix D BPS tracked changes
Appendix E Response Proforma
C16 2018 Report to Authority Appendix A BSAD methodology tracked

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Consultation 18-19

Name
Report to authority inclusive of all consultation responses 2018-19
Appendix A Procurement Guidelines final track changed 18-19
Appendix B BPS final track changed 18-19
Appendix C BSAD final track changed 18-19
Appendix D SMAF final track changed 18-19
Appendix E ABSVD final track changed 18-19
Appendix F Response Proforma
C16 2018-19 Consultation Document
8

2017 ABSVD Informal

Published Sort ascending Name
8 Feb 2018ABSVD informal consultation responses non-confidential
8 Feb 2018ABSVD informal consultation summary and response
16 Nov 2017Annex B - Draft NG Business Requirements
16 Nov 2017ABSVD Informal Consultation November 2017
16 Nov 2017Annex C - Response Proforma
16 Nov 2017Annex A - ABSVD methodology tracked
6

2016-17

Published Sort ascending Name
18 Aug 2017APPENDIX G UKPR Response
18 Aug 2017APPENDIX E Change Marked BPS Effective from 1 April 2017
18 Aug 2017APPENDIX B Change Marked BSAD Effective from 1 April 2017
18 Aug 2017C16-CONSULTATION-1617-v1 0
18 Aug 2017APPENDIX C-PG
18 Aug 2017APPENDIX F - RESPONSE PROFORMA
18 Aug 2017C16 Annual Changes Report to Authority 1617
18 Aug 2017APPENDIX G Drax Response
18 Aug 2017APPENDIX D Change Marked SMAF Effective from 1 April 2017
18 Aug 2017APPENDIX A Change Marked ABSVD from 1 April 2017
18 Aug 2017APPENDIX D-SMAF
18 Aug 2017APPENDIX B-BSAD
18 Aug 2017APPENDIX G Uniper Response
18 Aug 2017APPENDIX F Consultation Document 1617
18 Aug 2017APPENDIX C Change Marked Procurement Guidelines Effective from 1 April 2017
18 Aug 2017APPENDIX E-BPS
18 Aug 2017APPENDIX A-ABSVD
4 Apr 2017APPENDIX G ENGIE Response
18

2015-16

Published Sort ascending Name
19 Oct 2017APPENDIX C-PG
19 Oct 2017APPENDIX E-BPS
19 Oct 2017APPENDIX H-PG-Revised
19 Oct 2017APPENDIX E-BPS(1)
19 Oct 2017APPENDIX B-BSAD(1)
19 Oct 2017Appendix F - Response Proforma
19 Oct 2017APPENDIX D-SMAF
19 Oct 2017C16-CONSULTATION-1516-v2 0
19 Oct 2017APPENDIX G - Industry Responses
19 Oct 2017APPENDIX D-SMAF(1)
19 Oct 2017APPENDIX A-ABSVD(1)
19 Oct 2017APPENDIX B-BSAD
19 Oct 2017APPENDIX A-ABSVD
19 Oct 2017APPENDIX I-SMAF Revised
19 Oct 2017APPENDIX F-C16-CONSULTATION-1516-v2 0
19 Oct 2017APPENDIX C-PG(1)
19 Oct 2017RTA-C16-ANNUAL-CONSULTATION-1516_FINAL
17

2014-15

Published Sort ascending Name
19 Oct 2017NBS Pricing Decision Letter_v1_0
19 Oct 2017C16-CONSULTATION-1415-v1_0
19 Oct 2017APPENDIX C - BPS
19 Oct 2017C16-INTERIM-CONSULTATION-2015
19 Oct 2017APPENDIX E - Industry Responses
19 Oct 2017RTA-C16-INTERIM-CONSULTATION-2015
19 Oct 2017Post ETR consultation Report 07 March 2014
19 Oct 2017APPENDIX-A-BSAD-V10_0-1415
19 Oct 2017Open Letter - proposals for NBS treatment in cashout
19 Oct 2017APPENDIX B - SMAF
19 Oct 2017APPENDIX B - SMAF_Post Consultation Change Marked
19 Oct 2017APPENDIX D - Consultation Document
19 Oct 2017SBR clarification letter_301015_final
19 Oct 2017New Balancing Services Open Letter 14.07.14
19 Oct 2017APPENDIX-B-RESPONSE-PROFORMA-1415
19 Oct 2017APPENDIX D - RESPONSE PROFORMA
19 Oct 2017APPENDIX A - BSAD
19 Oct 2017APPENDIX A - BSAD_Post Consultation Change Marked
19 Oct 2017APPENDIX C - BPS_Post Consultation Change Marked
19

2013-14

Published Sort ascending Name
18 Oct 2017APPENDIX-A-ABSVD-v5_0
18 Oct 2017APPENDIX-C-PG-V12_0 October 13
18 Oct 2017APPENDIX-G-PG-V12_0 October 13
18 Oct 2017APPENDIX-K-PG-V12_0 October 13
18 Oct 2017C16 Report to Authority 29 November 2013
18 Oct 2017RTA-APP-A-CONDOC
18 Oct 2017RTA-APP-D-3-COMBINED
18 Oct 2017RTA-APP-G-2-COMBINED
18 Oct 2017ETR Industry Document_5_Dec13 v 1
18 Oct 2017APPENDIX-C-PG-V13_0
18 Oct 2017C16-CONSULTATION-1314-v1_0
18 Oct 2017APPENDIX-A-BPS-V12_0 October 13
18 Oct 2017APPENDIX-D-SMAF-V3_0 October 13
18 Oct 2017APPENDIX-H-BPS-V12_0 October 13
18 Oct 2017APPENDIX-L-SMAF-V4_0 October 13
18 Oct 2017C16-RTA-INTERIM-2013-FINAL
18 Oct 2017RTA-APP-B-1-COMBINED
18 Oct 2017RTA-APP-E-RESPONSES-COMBINED
18 Oct 2017RTA-APP-H-3-COMBINED
18 Oct 2017APPENDIX-E-RESPONSE-PROFORMA

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2012-13

Published Sort ascending Name
18 Oct 2017B12 Formalising two shifting limit and other parameters
18 Oct 2017C16 Appendix C BSAD
18 Oct 2017Appendix F - Response Proforma
18 Oct 2017C16 Consultation Report
18 Oct 2017NGET Response - BELLA Participation in the BM
18 Oct 2017C16 Appendix B BPS
18 Oct 2017C16 Appendix D PGs
18 Oct 2017C16 Consultation Dec 2012
18 Oct 2017Open Letter - BELLA Participation in the BM
18 Oct 2017C16 Appendix A ABSVD
18 Oct 2017C16 Appendix A SMAF
18 Oct 2017C16 Consultation Report Annexes
18 Oct 2017C16 Appendix E SMAF
13

2011-12

Published Sort ascending Name
18 Oct 2017Consultation on loss of access compensation proforma
18 Oct 2017Managing intermittent and inflexible generation in the Balancing Mechanism Response Proforma
18 Oct 2017Appendix I ABSVD
18 Oct 2017C16 Consultation
18 Oct 2017Consultation on loss of access compensation
18 Oct 2017Appendix G BPS
18 Oct 2017C16 - Appendix J BSAD
18 Oct 2017Appendix B - Consultation Questions
18 Oct 2017Managing Intermittent and Inflexible Generation in the Balancing Mechanism Consultation
18 Oct 2017Appendix H PGs
18 Oct 2017Consultation Report
11

2010-11

Published Sort ascending Name
18 Oct 2017Appendix C ABSVD
18 Oct 201714 Appendix E
18 Oct 2017Appendix A BPS
18 Oct 2017Appendix D BSAD
18 Oct 2017C16 Consultation
18 Oct 2017Appendix B PGs
18 Oct 2017Consultation
7

2009-10

Published Sort ascending Name
18 Oct 2017BSAD - Appendix E
18 Oct 2017C16 Appendix F BPS plus plain english changes
18 Oct 2017Appendix C - SMAF P217A
18 Oct 2017C16 Appendix D BPS technical changes
18 Oct 2017C16 Authority Report - Appendix H
18 Oct 2017C16 Authority Report
18 Oct 2017C16 Authority Report - Appendix C
18 Oct 2017Consultation Questions
18 Oct 2017Consultation Report - BSAD and SMAF
18 Oct 2017Ofgem Direction 19 May 2009 – cat5 PGs and BPS consultation
18 Oct 2017C16 PG Appendix B - 'cat 5'
18 Oct 2017C16 PG Appendix C - 'cat 5'
18 Oct 2017Appendix G - SMAF P217A and Review changes
18 Oct 2017Apendix C
18 Oct 2017C16 Authority Report - Appendix D
18 Oct 2017Appendix B - BSAD P217A
18 Oct 2017APPENDIX E BPS V12_0 - October 2013
18 Oct 2017C16 BPS Appendix A - 'cat5'
18 Oct 2017C16 PG Appendix A - 'cat 5'
18 Oct 2017C16 Authority Report - Appendix E

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