Restoration Services

Restoration (formerly known as Black Start) is the process used to restore power in the event of a total or partial shutdown of the national electricity transmission system. 

Please be aware we have published our consultation on the Implementation of the ESRS (Electricity System Restoration Standard) . A link to this is below and all responses should be sent to [email protected] by no later than 10 December 2021.

Please also note we have published our consultation on the Assurance Framework as part of the ESO Licence condition. This consultation shall also last for 30 days like the ESRS consultation and closes on the 17 December 2021. Please send all responses to [email protected]

10.11.2021 ESRS Implementation Consultation

19.11.2021 Assurance Framework Consultation

Service Description

A total or partial shutdown of the national electricity transmission system (NETS) is an unlikely event. However, if it happens, we are obliged to make sure there are contingency arrangements in place to ensure electricity supplies can be restored in a timely and orderly way. We use restoration services to recover from such a shutdown.

It is possible to provide other balancing services, as long as doing so does not interfere with your ability to deliver restoration services.

The restoration service is procured from power stations that have the capability to start main blocks of generation onsite, without reliance on external supplies.

During a shutdown, the service requires the provider to start up its main generator(s), carry out initial energisation of sections of the national electricity transmission system and distribution network, and support sufficient demand to create and control a stable ‘power island’.

The contracted generator may be required to provide start up supplies to other power stations as the system restoration progresses, and will eventually be required to synchronise to other power islands.

Not all power stations have, or are required to have, the capability to provide restoration services.

This capability is typically considered when the plant is being built, although we may procure services where this capability can be retrofitted to a generator if this is an economic alternative.

The Black Start Allowed Revenue Report for 2020/21 can be found under the Market Information tab.

Restoration Competitive Procurement Event - North West, North East and Scotland

04 May 2021 we have published the results of the ESR Northern Tender here

22 Sept 2020 we have published an update to the timelines for both competitive events

17th August 2020 we have published a summary of submissions participating in ITT Part 2

8th Nov 2019- We have published a summary of submissions participating in ITT Part 1

We have been developing a new market mechanism to competitively procure Restoration Services, delivering on what we said in our Black Start Strategy and Procurement Methodologies published on an annual basis, and the Restoration Roadmap.

We will be seeking Expressions of Interest (EOI) from 01 August 2019, and will subsequently Invite to Tender (ITT) in November 2019, for services in three zones, North West, North East and Scotland, for service commencement in October 2021.

Documents relating to request for EOI.

Request for EOI

EOI Query Responses v1 11/10/19

Request for Expressions of Interest (ZippedFolder) 
Please note that we have updated Appendices 5,5A and TD3 , please refer to latest versions.
 
Template - Parent Company Guarantee
Please find template/draft versions of the CSA and MASA frameworks below for reference, which we reserve the right to amend. Please note the clause 4 terms should prevail (updated 1 August 2019)
Template - CSA
Template MASA

Restoration Competitive Procurement Event SW/Midlands

09.11.20 Please note we have published the SW & Midlands Restoration Tender Results here

8th Nov 2019 - We have published a summary of submissions participating in ITT Part 2 (updated 9th Dec)

ESO is trialling a competitive procurement event for Restoration Services, delivering on what we said in our Black Start Strategy and Procurement Methodology, and Restoration Roadmap.

Our request for Expressions of Interest has now closed, the submissions have been assessed, and parties eligible to proceed to the next stage have been informed and will receive their ITT on 1 May.

A summary of the EOI submissions is available below. 

Summary of EOI submissions (updated 1 May)

Documents relating to request for EOI.

Request for Expressions of Interest (Zipped Folder)
(updated to include finalised contract terms - 15 February 2019)

Query Log V5 (uploaded 25 March 2019)
Template - Parent Company Guarantee

Please find template/draft versions of the CSA and MASA frameworks below for reference, which we reserve the right to amend. Please note the clause 4 terms should prevail (updated 28 March 2019)
Template - CSA
Template MASA

Documents relating to request for feedback.

Added 7 December 2018:
Request for Feedback
Appendix 1 – Technical Requirements and Assessment Criteria
Appendix 2 – Feasibility Study Process
Appendix 3 – Feasibility Study Agreement
Appendix 4 – BS Service Contract Terms
Appendix 5 – Feedback Template
Black Start Competitive Procurement Event Webinar Presentation (updated 21 January 2019)
Request for Feedback - Summary (uploaded 22 January 2019)

Updated Contract Terms Jan 2021