Key documents (NOA)
The NOA has an important role in developing an efficient, coordinated and economic electricity transmission system.
On this page, you'll find the full suite of NOA 2020/21 documents including:
- NOA 2021/22 refresh and past publications
- Methodology reports
- Minutes from the NOA Committee meetings
- SO Process for Input into TO Led SWW Needs Case Submissions
- NOA Interested Persons’ Process
Download the NOA publication
Download NOA 2021/22 Refresh interactive report
Additional resources
Download the other useful documents in the NOA suite.
Appendix A for NOA 2021/22 Refresh
Appendix A combines our economic analysis results and list of options.
Methodology report
Our NOA methodology report describes the end to end process for the analysis and publishing of the NOA report.
SO process for input into TO let SWW needs case submissions
Learn more about what our role is for SWW projects.
NOA Interested Persons’ Process
The Interested Persons’ options process is designed to increase the diversity of options considered within the NOA process through academic and industry participation. We are now seeking new and innovative ideas for potential inclusion in future NOAs.
Modelled Constraint Costs
This short paper summarises our forward modelled view of costs to manage thermal constraints. We summarise why these costs are increasing, what this means for consumers, and what we are doing to address the rise.
Network Options Assessment (NOA) Archive
The NOA has an important role in developing an efficient, coordinated, and economic system of electricity transmission, here you can find previous NOA publications, methodologies and meeting minutes.
Past NOA publications
| Name | Published Sort ascending |
|---|---|
| Network Options Assessment (NOA) 2021/22 Interactive document | 28 Jan 2022 |
| Appendix A for NOA 2021/22 | 27 Jan 2022 |
| Network Options Assessment (NOA) 2020/21 Interactive document | 28 Jan 2021 |
| Network Options Assessment (NOA) 2020/21 Printable version | 26 Jan 2021 |
| Network Options Assessment (NOA) 2019/20 Interactive document | 31 Jan 2020 |
| Network Options Assessment 2018-19 | 31 Jan 2019 |
| Network Options Assessment 2017-18 | 29 Jan 2018 |
| Network Options Assessment 2016-17 | 30 Jan 2017 |
| NOA 2015-16 | 31 Aug 2016 |
| NOA Interconnectors 2015-16 | 31 Aug 2016 |
Past NOA methodologies
| Name | Published Sort ascending |
|---|---|
| NOA Methodology 2022-23 | 28 Jul 2022 |
| NOA Methodology 2021-22 | 30 Jul 2021 |
| NOA Storage supplementary note | 10 May 2021 |
| NOA Methodology 2020-21 | 31 Jul 2020 |
| NOA Methodology 2019-20 | 31 Jul 2019 |
| NOA Methodology 2018-19 | 5 Jul 2018 |
| NOA Methodology 2017-18 | 31 Aug 2017 |
| NOA Methodology Review Report | 31 Aug 2017 |
NOA Committee meeting minutes and Terms of Reference
Our NOA Committee scrutinises the results in the NOA to ensure our recommendations are the most efficient for all.
We have included the meeting minutes as far back as 2019. If you would like to request previous meeting minutes please let us know [email protected].
| Name | Published Sort ascending |
|---|---|
| NOA Committee - minutes 8 June 2023 | 24 Aug 2023 |
| NOA Committee - minutes 17 June 2022 | 7 Oct 2022 |
| NOA Committee - minutes 12 May 2022 | 15 Jun 2022 |
| NOA Committee - minutes 11 January 2022 | 22 Feb 2022 |
| NOA Committee - minutes 9 December 2021 | 22 Feb 2022 |
| NOA Committee - minutes 6 October 2021 | 8 Dec 2021 |
| NOA Committee - minutes 5 May 2021 | 1 Oct 2021 |
| NOA Committee - minutes 7 December 2020 | 21 May 2021 |
| NOA Committee - minutes 12 January 2021 | 21 May 2021 |
| NOA Committee Terms of Reference | 26 Apr 2021 |
Discover more about the NOA
Beyond 2030
The Beyond 2030 report builds on top of the Holistic Network Design and makes a set of network recommendations throughout the 2030s.
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Connect with NOA
The options that are analysed in the NOA fall into two main groups, Asset-based options and ESO proposed options. This year we received a total of 171 options which were placed into various categories.