Progress and timeline

The three-year Distributed ReStart project is required by Ofgem to deliver 10 milestones which can be viewed on the timeline below.

Project timeline – 10 milestones

Distributed ReStart Timeline


We have reached our halfway point and have now entered the second phase.

This involves the designing of the technical, organisational, procurement and regulatory solutions to be tested with live trials in 2021/22.

SP Energy Networks will host the live trials as it has both transmission and distribution control capability allowing for end to end assessment of procedures. Their mixed ‘set-up’ of networks is ideal for testing the concept of black start from DER.

You can view our June 2020 progress report for the latest updates on the project and its workstreams.

Download progress report – June 2020

Summary of key updates by workstream

You can find out more about our workstreams on our Approach and workstream page.

Power engineering and trials

DR - Power Engineering Trials

The power engineering and trials (PET) workstream is required to produce reports detailing its assessment of the power engineering aspects of black start from DERs. It has recently published its first milestone report (part 1) in July 2020 which you can download below. The second report (part 2) is due in December 2020.

Download PET report

Organisational, systems and telecommunications

DR - Organisation Systems Communication

The organisational, systems and telecommunications (OST) workstream continues to develop operational telecommunication requirements – including cyber security assessments and organisational models through industry stakeholder input. The workstream is on track to deliver its design stage report in October 2020.

Procurement and compliance

DR - Procurement Compliance

Commercial and procurement options are under development with an ongoing stakeholder consultation process to capture industry views on routes to market for a DER service. In addition, a codes review is ongoing based on power engineering and organisational findings to date. The workstream is on track to deliver its report in October 2020.

Knowledge and dissemination

DR - Knowledge Dissemination

The knowledge and dissemination workstream has delivered extensive stakeholder engagement support for all workstreams, including delivery of a Distributed ReStart conference with over 100 attendees. In light of COVID-19 and the postponement or cancellation of many events, we’ve shifted emphasis towards online solutions – including our recent three-day virtual event on 30 June 2020.

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Email: [email protected] Write: National Grid ESO, Faraday House, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DA