Offshore Transmission Network Review

• The Offshore Transmission Network Review (OTNR) was set up in 2020 to improve the delivery of transmission connections for offshore wind. It seeks to coordinate this transformation, ensuring impacts on communities, the environment and network efficiency are considered as well as minimised whilst building a cheaper, greener, and more secure energy system for Britain.

• The Holistic Network Design (HND) provides an upfront plan for both wider network reinforcements and the connections for offshore wind. It recommends how to connect 23 GW of energy to where it is needed, enabling the delivery of 50 GW by 2030.

• The HND Follow Up Exercise will provide recommended connections for an additional 24 GW of offshore wind from ScotWind and Celtic Sea wind. We expect this to be published in summer 2023.

• The forthcoming publication of the OTNR’s Future Framework outlines recommendations and actions for a more strategic approach for the deployment of offshore wind, interconnectors and multi-purpose interconnectors. This covers new offshore wind from conception to project delivery, shaping the future of offshore wind delivery.