Accession Process and Provisional Registration Process for the 2030/2031 T-4 Capacity Auction
Affected Period
Status
Open
Category
Capacity
Run Type
T-4 Auction
Created
Last Updated
Dear Capacity Market Participant,
This is a reminder that as per the Capacity Auction Timetable for the 2030/2031 T-4 Capacity Auction, the Participation Notice Closing Date is Monday, 06/07/2026.
If you intend to register a new Party via the Accession Process and/or provisionally register a new Candidate Unit (or a combination of units including that Candidate Unit), please review in full the Accession Process and Provisional Registration Process – Guidance Note and when preparing your submissions, please use the latest version of the C01-C02-C11 – Capacity Market Party and Unit Registration V2.0. These documents should be submitted to capacitymarketregistration@sem-o.com (copying capacitymarket@sem-o.com).
If you already have a Party PY ID number and Candidate Unit GU/DSU ID(s), you do not need to complete the Capacity Market Party and Unit Registration forms again.
Should you have any queries or concerns regarding the above, please do not hesitate to get in touch at capacitymarketregistration@sem-o.com (copying capacitymarket@sem-o.com).
Kind regards,
Capacity Market Team