A blog by Bless Kuri, Head of Transmission System Planning and Investment
As owner of the electricity transmission network in the north of Scotland, we have a critical role to play in the transition to net zero - by building the transmission infrastructure required to connect renewable electricity generation, and transporting that clean electricity to areas of demand.
Based on feedback from our customers and wider stakeholders, and working with the Electricity System Operator, National Grid (ESO) and the other GB Transmission Owners (TO), we continually review the potential transmission network requirements arising from different scenarios for future demand and generation, looking ten years ahead and beyond. This allows us to identify which parts of the network require strengthening, including the need for new network infrastructure, to deliver the investment required and support the pathway to net zero. By working in collaboration with the ESO and the other TOs, it allows us to collectively prepare for this investment in the most economical way possible for GB bill payers.
In considering a wide range of credible outcomes and scenarios, we can then develop an evolving long-term plan for what upgrades may be required, and when, to strengthen our network, deliver for our demand and generation customers, and contribute to the wider efficient development and operation of the GB transmission network.
We therefore welcome the publication of the ESO’s annual Network Options Assessment (NOA) report outlining, based on its independent analysis, which major projects will be required to meet the future needs of GB’s electricity transmission system which are measured against NGESO’s Future Energy Scenarios (FES).
For SSEN Transmission, our planned investments outlined in the NOA remain unchanged in this year’s study when assessed under the latest scenarios. This year’s report continues to recommend, under all FES considered by the ESO, that the following proposed East Coast reinforcements in our network area “proceed” to support an expected increase in renewable generation capacity during the continued transition to net zero:
Both the East Coast onshore upgrades are included in our Certain View investment plan in our recently published Business Plan for the period 2021-2026: A Network for Net Zero, which also includes pre-construction development to support the delivery of the East Coast HVDC link.
In addition, the NOA report recommends that an additional HVDC link be introduced from North East Scotland to South Humberside by 2031 as a result of further expected renewable generation in the North of Scotland. However, this early stage recommendation is expected to be further refined in next year’s NOA once more detailed investigation and scoping of requirements takes place. We also look forward to the expected inclusion of a net zero scenario in next year’s NOA publication which we believe will help strengthen our contribution to a more sustainable future GB electricity system.
Finally, whilst the NOA identifies a number of projects that meet Ofgem’s eligibility criteria for competition, we note that this does not necessarily mean that these projects will be subject to competition. We continue to believe that the introduction of competition to onshore transmission must be supported by the necessary primary legislation, which has yet to be introduced.
Further information on SHE Transmission’s progress with the East Coast reinforcements can be found on the following project pages: