The final window 11 closed on 10 May 2022 and no further applications for funding can be accepted. Full details of the payment scheme can be found here, and note that, for payment, evidence of the changes made will need to be submitted by the Work Completion Date that will be (or will have been) notified to you.

The ALoMCP closed to generators and their agents on 31 August 2022. No further submissions can be accepted for funding applications or compliance declarations.

Window 11 is now live and open for applications from 9 February to 10 May 2022. Window 11 is the last window – no more applications for payment can be accepted after 10 May 2022. Full details of the payment scheme can be found here, and note that, for payment, evidence of the changes made will need to be submitted by the Work Completion Date that will be notified to you.

The Accelerated Loss of Mains Change Programme (ALoMCP) is necessary for the short to medium term security of supply and ensuring network resilience. Whilst it is recognised that current COVID-19 related restrictions will have an impact on parties participating in the programme, programme delivery continues, with the following additional guidance:

• Approved applicants that experience difficulties in meeting their agreed Latest Valid Loss of Mains Change should contact their DNO / IDNO to discuss options as soon as the potential delay becomes apparent
• The Programme portal remains open for applications. We ask that the lead time provided in new applications accommodates any estimated delay due to COVID-19 restrictions

The Programme will keep the situation under review and may update this response as the situation changes.

Dear

Since you last logged into the portal, some updates have been made.

If you are still in the process of making your application you will be asked for the following additional information:

• Confirmation as to whether the generation equipment in question is a synchronous generator or a double fed induction generator
• Relay manufacturer(s)
• Relay manufacturer’s relay type(s)
• Number of inverters which specifically include RoCoF or vector shift loss of mains (LoM) protection
• Inverter manufacturer(s)
• Inverter manufacturer’s inverter type(s)
• Under-frequency settings (in addition to over-frequency settings)

If you have already had your proposed date of change accepted, ie you have accepted the terms and conditions of the Programme already, you will not need to provide this information in the portal.

For all sites where you are reporting after Sunday 14 June on the work done, irrespective of when you made the application or did the work, the following additional information will be required when notifying the DNO of the work done through the portal:

• The number of inverters using RoCoF protection after the changes
• The number of inverters where the LoM protection has been made inoperative
• The number of inverters with RoCoF or vector shift that cannot be changed
• The under-frequency settings as set (in addition to the over-frequency settings)
• Any outstanding non-compliances

The portal user guide has been updated with screen shots of the new data requirements.

If you have any questions of the implications for specific sites, please contact the relevant DNO.

Please note – the ALoMCP Portal will be unavailable from 13:00 on Friday 12 June through to 08:00 on Monday 15 June.

From Monday 15 June generation owners will be required to provide additional information about loss of mains relays and about any inverters which include loss of mains functionality. Generation owners will need to provide this information as part of the application from 15 June.

The relevant information required with the application is:

• Confirmation as to whether the generation equipment in question is a synchronous generator or a double fed induction generator
• Relay manufacturer(s)
• Relay manufacturer’s relay type(s)
• Number of inverters which specifically include RoCoF or vector shift loss of mains (LoM) protection
• Inverter manufacturer(s)
• Inverter manufacturer’s inverter type(s)
• Under-frequency settings (in addition to over-frequency settings)

All sites reporting after Monday 15 June that the work has been completed (irrespective of when the work was done) will need to provide the following additional information:

• The number of inverters using RoCoF protection after the changes
• The number of inverters where the LoM protection has been made inoperative
• The number of inverters with RoCoF or vector shift that cannot be changed
• The under-frequency settings as set (in addition to the over-frequency settings)
• Any outstanding non-compliances

The portal user guide has been updated with screen shots of the new data requirements.

If you have any questions of the implications for specific sites, please contact the relevant DNO.

The ALoMC Programme has identified that there are additional savings to overall system balancing costs in making changes to RoCoF loss of mains (LoM) protection more quickly than originally envisaged.

Sites meeting the criteria below will be fast tracked through the application process and are eligible for the additional payment shown. Full details of the Fast Tracking Scheme can be found in the Payment Process Specification here.