GC0114: System Operation Guideline: Prequalification Processes

The EU System Operation Guideline (SOGL) requires NGET to develop prequalification processes for Frequency Containment (FCR), Restoration (FRR) and Replacement Reserves (RR). In line with stakeholder feedback NGET proposes to develop these new processes under the established governance of the Grid Code.

Modification status: Concluded

Last updated: 19 February 2020


This modification was raised by:

National Grid in May 2018

The governance route for this modification is:


The impact of this modification is on:

Existing and future balancing service providers, NGET and DNOs.

The modification is currently at: