What is Electricity System Restoration?
Electricity System Restoration (ESR) is the procedure to recover from a Partial or Total Shutdown of the National Electricity Transmission System, which has caused an extensive loss of supply. The National Grid ESO, our electricity system operator, has a Grid Code obligation to, at any time, be able to restore the electricity network in the event of a Partial or Total Shutdown within the stipulated timeframes.
When are the ESR tender round deadlines?
National Grid ESO runs restoration tenders periodically to ensure there are sufficient generators and other assets available to provide this service. The latest ESR tender rounds began in 2022 and will continue into 2024, covering the full geography of mainland GB. The South-East tender has concluded and the Northern tender is active at ITT2, concluding on 2nd February 2024. The South-West & Midlands tender is the latest to be announced with EOI active now until the 29th January 2024.
Renewable technologies in the restoration process
These latest ESR tender rounds being run by National Grid ESO now not only afford generators the chance to participate in this crucial service, but they now also ensure inclusivity, welcoming a diverse array of technologies, including renewables, to contribute to the restoration process.
TNEI’s Experience
TNEI was a project partner on the world-first Distributed ReStart project, and we have also been involved in other restoration studies with SP Energy Networks (Synergy) and Carbon Trust. Our experience in this area has positioned us perfectly to support clients in the ESR tender rounds. Our team of specialist power system engineers can offer a range of services to generators, and we have supported on all technical aspects of the ESR tenders, spanning EOI, Feasibility 1 (ITT1) and Feasibility 2 (ITT2).
You can read case studies of our previous ESR work:
Our experience also highlights the value of early engagement with our engineers. In having us involved from the early stages at EOI right through to ITT2, we’ve witnessed a significantly more streamlined process. Choosing proactive support ensures a smoother journey from start to finish.
Benefits of TNEI supporting from the early stages:
- Continuity of service throughout the three stages of the tender process
- Detailed knowledge of client sites and capabilities allow us to highlight potential issues early
- Leverage our experience of how the ESR tenders are run and how to manage multiple stakeholders and projects simultaneously
Upcoming ESR Tendering Process
The ESR tendering process now live for the South West and Midlands. The Request for EOI has been launched and will remain open until 29th January 2024. ITT1 is expected in mid-February 2024 with ITT2 expected to be launched in mid-August 2024. Documentation for the SW & Midlands tender is available for download on the ESO website.
Please get in touch for more information on how TNEI can help you through the ESR tendering process.
