C9 statements and consultations
We are required to establish statements and guidelines in accordance with special condition C9 of the statements of the NESO licence. On this page you will find all C9-related documents, including consultations.
Please note: as a result of the licence changes arising from the transition to NESO, the statements previously found under C16 of the transmission licence are now found under C9. The statements on this page currently refer to C16 as this was the correct licence condition at the time of consultation
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Here you can find the latest versions of C9-related statements including the Balancing Principles Statement Report and guidelines.
Latest versions
Here you can find previous versions of C9-related statements and guidelines.
Procurement Guidelines
Balancing services adjustment data (BSAD)
Balancing principles statement report
By accessing these reports, you are agreeing to our terms and conditions.
System management action flagging
System management action flagging (SMAF) report
Applicable balancing services volume data (ABSVD)
Balancing Principles Statement
On an annual basis, we undertake consultations in respect of the C9 statements. Where applicable we may be required to undertake additional consultations outside of the standard annual review.
Consultation videos
| Name | Published |
|---|---|
| Local Constraints Market Price Adjustment Mechanism | 02 Sep 2024 |
Consultation documents
2023-24
2021-22
2020-21
2019-20
2018-19
2017-18
2017 ABSVD Informal
2016-17
2015-16
2014-15
2013-14
2012-13
2011-12
2010-11
2009-10
These documents outline the GB methodology for commercial arrangements for payments relating to interconnector (IC) capacity restrictions resulting from NTC restrictions set by National Energy System Operator (NESO). The commercial arrangements in these documents should be applied to:
- all interconnector projects (existing and future) that are connected to the GB transmission system
- capacity calculations made both before and after the firmness deadline
This methodology should be applied in full to ensure consistency of NTC arrangements across all GB connected interconnectors.