Proposed Modifications to the Grid Code Under Condition 16 of the TSO Licence – Rate of Change of Frequency (RoCoF)

Published date30 May 2023
Energy SectorElectricity Networks
_________________________________________________________________________
Utility Regulator
Queens House, 14 Queen Street, BELFAST, BT1 6ED
T: +44 (0) 28 9031 1575 F: +44 (0) 28 9031 1740 W: www.uregni.gov.uk
Sam Matthews
SONI Limited
Castlereagh House
12 Manse Road
Belfast
BT6 9RT
18 May 2023 Our Ref: NET/E/DH/662
Dear Sam
RE: Proposed Modifications to the Grid Code Under Condition 16 of the TSO
Licence Rate of Change of Frequency (RoCoF)
Thank you for your letter of 27 February 2023, where you seek our approval for your
proposed modifications to sections of the Grid Code (CC5.3.3, CC8.8.3, CC8.8.4,
CC.S1.1.5.6, CC.S1.2.4.4, and CC.S2.1.9)
1
, relevant to high Rate of Change of Frequency
(RoCoF) events.
Under Condition 16 (3) of SONI’s Transmission System Operator Licence
2
, the licensee
can propose revisions to the Grid Code, that require the Utility Regulator’s (‘the Authority)
approval. The Authority approves these modifications in the form presented.
Having reviewed the proposals for modification, and the supporting documentation, the
Authority is satisfied that SONI has recommended this modification for approval in
accordance with the relevant provisions set out in the Grid Code. We note that no
stakeholders have responded, but that any views given at the Grid Code Review Panel
(GCRP) have been adequately considered and addressed.
Yours sincerely,
Donald Henry
Networks and Energy Futures Director
1
Feb23_SONI-Grid-Code.pdf
2
2022-11-18 SONI TSO Consolidated.pdf (uregni.gov.uk)

To continue reading

Request your trial

VLEX uses login cookies to provide you with a better browsing experience. If you click on 'Accept' or continue browsing this site we consider that you accept our cookie policy. ACCEPT