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Offshore Coordination Project

There is a need for all parties to work collaboratively and at pace to enable Great Britain to achieve its offshore wind targets and net zero ambition at least cost to consumers and with least impact on communities and the environment.

Our stakeholders have a vital role to play in shaping and progressing the work required for a more coordinated approach offshore, and we want to thank you for taking the time to contribute to the project thus far. We value your involvement and look forward to continuing to work together.

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Early Opportunities Action Plan

We would like to share with you the progress we have made since the Early Opportunities workstream of the Offshore Coordination Project was launched in January 2021.

Our Early Opportunities Action Plan provides an overview of the work done to date. There will need to be changes to industry frameworks and this document sets out the actions we will take forward to facilitate those changes.

We would love to hear your feedback on the Early Opportunities workstream, so if you would like to get in touch, please email [email protected]

Download the Early Opportunities Action Plan

Codes calendar

Industry Codes Workshop – CUSC Charging Methodology

Thank you to all who attended the workshop held on 9th May 2022 in relation to the three recommended code modifications needed to the Charging Methodology CUSC Section 14. We value the industry discussions on the proposed modifications and options. This feedback has been taken onboard to structure next steps.

A Codes and Standards subgroup of the Offshore Transmission Network Review (OTNR) Expert Advisory Group has been setup to programme manage the code changes relating to offshore coordination. If you would like to be kept up to date on the work of this group, please email [email protected] to join our distribution list.

Inclusion of ScotWind in the Holistic Network Design statement

The ESO is developing a Holistic Network Design (HND) as part of the BEIS-led Offshore Transmission Network Review (OTNR) that is supporting delivery of the Government’s 2030 offshore wind targets.

The announcement of the ScotWind leasing round results on 17 January 2022 is a significant milestone on the UK’s pathway to net zero. With OTNR project partners and key stakeholders we have reviewed the outcome to understand how we should approach it in the HND.

Download the ScotWind Review

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Holistic Network Design Methodology

This document aims to provide an overview of our approach to how we will deliver the Holistic Network Design (HND). The executive summary provides an overview of the building blocks to deliver the HND; the full methodology document provides more detail on each of those blocks.

Download the HND Methodology

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Stakeholder Feedback

At the end of last year, we sought your feedback on our general engagement, as well as on our Autumn progress publication and subsequent webinars, to help to shape our future engagement.

We would like to take this opportunity to share with you some of the key areas that you asked us to address, and what we have done and plan to do to address these.

View Stakeholder Feedback
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Open Letters

Open Letter on the Pathway to 2030 Connection Contract Update Programme  

This open letter provides an update to relevant offshore project developers and other interested stakeholders on our plans for a connection contract programme as a result of ongoing developments within the Pathway to 2030 workstream of the Offshore Transmission Network Review.

Download the open letter

Open Letter on the Offshore Transmission Network Review (OTNR) - September 2021

This open letter provides an update to offshore project developers on how the OTNR could impact on their current offshore connection contracts or any future offshore applications / modifications.

Download the open letter

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Timeline for delivering the Holistic Network Design (HND)

The Holistic Network Design (HND), which includes the operability strategy and options appraisal, will now be completed in May 2022. In advance of this, we will share emerging outputs at appropriate points. One of the key building blocks for the HND will be a ‘coordinated design for 2030’, which will be developed for April 2022 and will include the interface points for developers. The HND completed in May will build on but is not expected to change the coordinated 2030 design. In May the HND will provide a snapshot of the recommended offshore network and onshore network requirements for 2030. Following this, a Network Options Assessment (NOA) cost-benefit analysis will further assess the HND providing formal recommendations on the specific onshore reinforcements required including detail on their optimal delivery dates. We will publish the written HND report, once it has passed through the Offshore Transmission Network Review (OTNR) governance in June 2022.

As a result of this later delivery date, we will be publishing a HND that fully incorporates both ScotWind and Round 4 projects in scope for Pathway to 2030. It should be noted that whilst the HND will include an initial design for the Celtic Sea, a further iteration to the HND will likely be needed to incorporate the outcome of the Celtic Sea leasing round once known.

View our timeline
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Publication package for the HND

The written HND report due to be published in June 2022 will form part of a suite of documents.

These include:

  • An executive summary document, providing a clear summary of the following publications, including context, conclusions and next steps.

  • The HND report, including the recommended design and strategic options appraisal.

  • A report delivered through the Central Design Group (CDG) commercial subgroup, which is intended to comprehensively consider and provide advice on the commercial impacts of and interactions with the HND output, for example in respect of codes and connections.

  • A stakeholder feedback report, detailing how feedback has helped to inform the HND.

The Crown Estate, Crown Estate Scotland and National Grid ESO announce partnership, to improve coordination of offshore wind transmission infrastructure

The Crown Estate, Crown Estate Scotland and National Grid Electricity System Operator (ESO) have committed to working closely together to support the development of a more coordinated approach to the delivery of transmission infrastructure for offshore wind projects.

As key partners of the Offshore Transmission Network Review (OTNR), all three organisations recognise that a coordinated approach to seabed leasing and planning, development and construction of transmission infrastructure related to offshore wind is required if the UK is to realise it’s clean energy potential offshore, while minimising impacts on the marine environment, and on coastal communities.

As pressures on our marine environment increase, all three organisations will build on their existing close working relationships, to collaborate in a range of new ways, identifying new priorities and further opportunities for alignment, principally through the OTNR. 

This collaboration underpins the organisations’ shared ambition to work proactively toward positive solutions for the benefit of the nation.

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If you have questions or feedback please get in touch via our email address

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Stay up to date

In addition, our work is part of the Offshore Transmission Network Review (OTNR) being led by BEIS. You can sign up to receive the OTNR Newsletter here for wider updates.