Electricity Capacity Market Notice Cancelled
Posted by National Grid Electricity System Operator at
The Capacity Market Notice originally active from has been cancelled from 5:30pm on Friday 3rd December 2021
Electricity Capacity Market Notice Currently Active
Posted by National Grid Electricity System Operator at
Capacity Market participants are advised to review the System Warnings page on BMRS for potential additional operational warnings from the Electricity System Operator. This notice is published pursuant to Rule 8.4.6 / 11.3.5 of the Capacity Market Rules
Participants are also advised to pay close attention to De-rated Margin (DRM) information on the BMRS website that will be updated 3 times (4 hour, 2 hour and 1 hour ahead) in advance of the "commencement time" of this Capacity Market Notice.
Electricity Capacity Market Notice Cancelled
Posted by National Grid Electricity System Operator at
The Capacity Market Notice originally active from has been cancelled from 6:30pm on Friday 8th January 2021
Electricity Capacity Market Notice Currently Active
Posted by National Grid Electricity System Operator at
Capacity Market participants are advised to review the System Warnings page on BMRS for potential additional operational warnings from the Electricity System Operator. This notice is published pursuant to Rule 8.4.6 / 11.3.5 of the Capacity Market Rules
Participants are also advised to pay close attention to De-rated Margin (DRM) information on the BMRS website that will be updated 3 times (4 hour, 2 hour and 1 hour ahead) in advance of the "commencement time" of this Capacity Market Notice.
Electricity Capacity Market Notice Cancelled
Posted by National Grid Electricity System Operator at
The Capacity Market Notice originally active from has been cancelled from 4:00pm on Thursday 3rd December 2020
Electricity Capacity Market Notice Currently Active
Posted by National Grid Electricity System Operator at
Capacity Market participants are advised to review the System Warnings page on BMRS for potential additional operational warnings from the Electricity System Operator. This notice is published pursuant to Rule 8.4.6 / 11.3.5 of the Capacity Market Rules
Participants are also advised to pay close attention to De-rated Margin (DRM) information on the BMRS website that will be updated 3 times (4 hour, 2 hour and 1 hour ahead) in advance of the "commencement time" of this Capacity Market Notice.
Message from Electricity System Operator
Posted by National Grid Electricity System Operator at
Upcoming URL Change
On Tuesday 24th November 2020 at 10am the GB Electricity Capacity Market Notice website will be changing URL from gbcmn.nationalgrid.co.uk to gbcmn.nationalgrideso.com.
The new URL is already available, but all pages and links from the old URL will be redirected to the new URL from 10am on Tuesday 24th November 2020.
At this time email notifications will also change to be sent from noreply@gbcmn.nationalgrideso.com.
If you have any questions or concerns, please email emr@nationalgrideso.com.
Electricity Capacity Market Notice Cancelled
Posted by National Grid Electricity System Operator at
The Capacity Market Notice originally active from has been cancelled from 5:30pm on Tuesday 15th September 2020
Electricity Capacity Market Notice Currently Active
Posted by National Grid Electricity System Operator at
Capacity Market participants are advised to review the System Warnings page on BMRS for potential additional operational warnings from the Electricity System Operator. This notice is published pursuant to Rule 8.4.6 / 11.3.5 of the Capacity Market Rules
Participants are also advised to pay close attention to De-rated Margin (DRM) information on the BMRS website that will be updated 3 times (4 hour, 2 hour and 1 hour ahead) in advance of the "commencement time" of this Capacity Market Notice.
Message from Electricity System Operator
Posted by National Grid Electricity System Operator at
Despite the Capacity Market entering a “standstill period” last week following the ECJ ruling, we have decided to continue operating the Capacity Market Notice (CMN) process. This is because with 2,500+ subscribers we now see the potential publication of CMNs as a critical route through which tight electricity margins may be communicated to the market.
We also recommend accessing other information sources during tight margin periods, including:-
- System Warnings page on the BMRS website. This is where National Grid ESO communicates any critical operational messages with the industry. These include Electricity Margin Notice (EMN) (previously known as Notice of Inadequate System Margin (NISM)), High Risk of Demand Reduction (HRDR) and Demand Control Imminent (DCI).
- De-rated Margin values available on the BMRS website. These values follow a similar calculation to the Capacity Market Notice trigger and are communicated by National Grid ESO on a Day Ahead, 8hr, 4hr, 2hr and 1hr profile to give advance notice of potentially tight Settlement Periods on the Transmission System.
If you have any questions please contact National Grid ESO directly at emr@nationalgrid.com.