Stakeholder Support for Capacity Providers

Applicants must lodge Credit Cover with EMRS if they receive a notice from the Delivery Body stating pre-qualification of their Capacity Market Unit(s) is conditional on providing Credit Cover.

Requirements for lodging Credit Cover

To lodge Credit Cover, you need to email the following details to our service desk via [email protected]:

• CMU ID(s)
• Linked CMUs / Clones
• Auction
• Amount
• Format (cash or Letter of Credit)
• Date it will be received in bank (if cash)
• Letter of Credit (LoC) number (if LoC)
• A copy of the SWIFT message sent to ESC’s bankers (if LoC)
• Monetary break down if lodging for multiple CMUs in one LoC or bank transfer

Please note you do not need to be registered with My EMRS to lodge Credit Cover.

Lodging cash Credit Cover

Our bank account details are available on page 8 in WP35 – Applicant Credit Cover. Please include the CMU ID in the payment reference and notify us of the day you intend to lodge this money to help us track payments and avoid reminder emails.

Options for lodging Letter of Credit

There are three options for lodging Credit Cover via a Letter of Credit:

Option 1: Letter of Credit via SWIFT message

Request your bank to issue an MT760 type SWIFT message to EMRS – this is better than sending us a physical letter.

 Option 2: Hard copy Letter of Credit

Use the approved Letter of Credit (LoC) templates in Appendix 1 and 3 of WP35 – Applicant Credit Cover.

Add the specifics relating to your individual requirements. Please note that no changes can be made to the approved templates.

Please ensure that you use the correct LoC template and note the LoC has a valid expiry date of 6 months from the date of issue.

Option 3: Updating existing Letter of Credit

If you have previously lodged an LoC with EMRS, it can be amended to cover any new requirements.

You may use the SWIFT process or, if lodged through using a physical letter, email a copy to us via [email protected], or post it to:

EMR Settlement Ltd,

350 Euston Road,

London,

NW1 3AW.

For amendments, we recommend updating an existing LoC rather than issuing a new one.

Next steps for EMRS

After lodging Credit Cover, we will review your submission and confirm whether it is approved or rejected. If you are registered within My EMRS, your Finance Authorities and Credit Cover contacts will receive the approval or rejection notice. We will send a copy to the EMR Delivery Body, so you don’t need to send it.

If you are successful in the Auctions and you haven’t already registered with us, you need to do so via My EMRS. This will provide us with the information we need to make Capacity Payments to you. These details will also assist you in future Credit Cover return requests.

Return of Credit Cover

Return of Credit Cover can be requested once Delivery Body has confirmed the Credit Cover value of the CMU has decreased. We are only able to process the Credit Cover return once Delivery Body has communicated the decrease of Credit Cover value for the CMU to us.

If you have queries regarding the Credit Cover requirement please contact Delivery Body.

How do I request the return of my Credit Cover and how long does it take?

The Credit Cover return process can differ depending on whether you are registered within My EMRS (being granted an EMR Party ID) or not.

If you have previously registered with My EMRS, contact our Service Desk with below information:

• CMU ID(s)
• Amount (monetary break down for multiple CMUs)
• Format (cash or LoC)
• Bank details (if cash) – this must match the bank details we have on record for you
• LoC ID (if LoC)

The request must come from a Primary Party Authority, Finance Authority or Credit Contact. To understand the privileges of each authority, please see G4 – EMR Settlement Authorisations.

If you haven’t registered with My EMRS previously and wish to request the return of Credit Cover please contact our Service Desk:

• For Cash Credit Cover, request and complete a Cash Credit Cover Return form.
• For LoC Credit Cover, email your request with CMU ID, amount, auction and LoC number.
• Requests must come from the Delivery Body’s main contact.

Do not ask your bank to amend or cancel a LoC before receiving authorisation from us, as it will be rejected.

More details are available in WP35- CM Applicant /Capacity Provider Credit Cover Process.

Financial Commitment Milestones

Financial Commitment Milestones (FCMs) are deadlines that Capacity Providers with New Build Capacity Market Units (CMUs) must meet to demonstrate financial commitment to their projects.

Meeting FCM requires Capacity Providers to demonstrate to NESO (EMR Delivery Body) that current project spend is over 10% of Total Project Spend, there is an appropriate level of financial commitment to the project and provide a Funding Declaration detailing any Relevant Benefit or Relevant Expenditure.

Capacity Providers who have not met FCM within 12 months of the Auction results must increase Credit Cover from £10k to £15k per MW per CMU. NESO will notify those CPs who have not yet demonstrated FCM.

The deadline to lodge additional Credit Cover with us is 12 months plus 15 working days after the Auction Results. Capacity Providers who have not lodged additional Credit Cover by the deadline will be terminated. The process to lodge Credit Cover is detailed above.

The deadline to lodge credit cover is available in our calendar.

If you are unsure how much Credit Cover you currently hold, or how much Credit Cover you still need to lodge, please contact our Service Desk via [email protected].

Registering with EMRS is required prior to the start of Delivery Year your agreement is awarded to enable Capacity Payment to be made to you. Failure to complete the registration process may result in Capacity Payments not being made on time.

If you are not registered with EMRS please use My EMRS. The process steps are illustrated within WP22 – Applicant and Capacity Provider Registration.

We have produced a short video to illustrate the registration process using My EMRS.

For additional support or guidance on how to use My EMRS, we have published G25 – My EMRS User Guide and the About My EMRS webpage contains additional information and useful FAQs.

You will need to complete the following registration details within My EMRS:

• Registration User
• Company Details
• Settlement Information
• Primary Bank Account
• Credit Cover Return Account
• Contact Details

Once these details are completed, you submit them for Approval by an Authorised Contact and then EMRS. We will keep you informed via email notification of successfully or unsuccessfully approval and when to access My EMRS if required.

Amending registration details

You are able to amend your registration details at any time via using My EMRS and this is also detailed in WP22 – Applicant and Capacity Provider Registration. To amend your details please select ‘Party Details‘ and ‘Amend Registration‘ from the Action drop down on the right-hand side on the screen. You can then select from the menu on the left-hand side on the area you wish to amend:

• Company Details
• Settlement Information
• Primary Bank Account
• Credit Cover Return Account
• Contact Details

To understand the privileges against each Authorised Contact please do visit the Stakeholder Support – About My EMRS webpage and read through G4 – EMR and Nuclear RAB Settlement Authorisations.

Primary Authority, Finance Authority, Operating Authority and Trading Contacts can submit amendments to registrations details via My EMRS. All amendments will be required to be approved by either a Finance Authority or a Primary Party Authority (this cannot be the same person who has submitted the amendment. This expands on the current external approval for amendments to Bank Account detail and reduces the risk of erroneous activity within My EMRS.

Once approved externally, these will be received by EMRS to review and confirm if your updates have been approved or rejected by email.

Please note when Bank Account Details are amended these do need to be verified and EMRS will contact a relevant Authorised Contact (either a Primary Party Authority or a Finance Authority) to confirm bank details.

You will complete these metering processes using My EMRS:

• Metering Assessment
• Metering Test (if required)
• Requesting a Test Certificate (if required)

If you are not familiar with My EMRS we’d suggest having a look through G25 – My EMRS User Guide as this illustrates the various processes available. We have also created some short training videos to support Capacity Providers with navigating the Metering Assessment and Metering Test functionalities within My EMRS.

Metering Assessment

The purpose of a Metering Assessment is to determine whether or not a Metering Test is required. Capacity Providers are required to complete a Metering Assessment by providing answers to all relevant questions on My EMRS.

We have provided information in G1 – Capacity Market Metering to aid with any technical queries you may have with the questions.

Metering Test

After completing the Metering Assessment process, we will notify the Capacity Provider whether or not a Metering Test is required for a Component within a Capacity Market Unit (CMU).

If yes, the Capacity Provider needs to complete a Metering Test on My EMRS by submitting a Single Line Diagram, Metering Statement (more information below) and any additional supporting documentation before the deadlines for each Delivery Year.

A Metering Statement, as per Schedule 6 of the Capacity Market (Amendment) Rules 2015, needs to be submitted for each Component that triggered a Metering Test. This must provide details of all Components within the CMU. If you need assistance with completing your Metering Statement, please take a look at G20 – Capacity Market Metering Statement.

We would encourage you to start the Metering Test process a minimum of three weeks prior to these deadlines. If you need any support, we will work with you throughout the testing process to ensure your Metering Test Certificate is received to meets these deadlines. This is to alleviate operational constraints and ensure timely processing of submissions.

We recommend you have a look through WP197 – Capacity Market Metering Test as this steps you through the Metering Test process.

What is a Metering Statement?

A Metering Statement, as per Schedule 6 of the Capacity Market (Amendment) Rules 2015, needs to be submitted for each Component that triggered a Metering Test. This must provide details of all Components within the CMU.

To support you in submitting a Metering Statement, a Schedule 6 (Metering Statement) template can be found in section 3 of G20 – Capacity Market Metering Statement.

Within G20 – Capacity Market Metering Statement we also include a breakdown of common issues we frequently identify within submitted Metering Statements, and guidance on how to avoid these. Understanding these issues will help reduce the number of potential non-compliances found within the Metering Statement and subsequently make the approval process quicker to complete.

Section 5 of G20 – Capacity Market Metering Statement also contains examples of completed Schedule 6 (Metering Statements) for different metering setups. These can be downloaded for your reference and to support you in completing this activity efficiently.

Clone CMUs

We understand that many Capacity Providers choose to clone their CMU for participation in subsequent auctions. A Metering Assessment must still be completed for the cloned CMU, however, where the site remains unchanged from the original CMU, a further Metering Test will not be required.

When completing the clone’s assessment, Capacity Providers should include the name of the original CMU within the ‘Description of Metering Arrangements’ section, and email [email protected] with a copy of the original Metering Certificate it has one.

Following completion of the assessment, the Metering Configuration must be copied exactly on a like-for-like basis from the original CMU into the clone. This includes retaining the same meter IDs and configuration details.

Capacity Providers should not amend or increment meter identifiers year-on-year, as any deviation from the original metering configuration may result in delays or rejection.

Requesting a Metering Test Certificate

After completing the Metering Test, we will notify the Capacity Provider of the outcome of the Metering Test.

If successful, the Capacity Provider will be able to request a Metering Test Certificate on My EMRS.

We would encourage you to start the Metering Test process a minimum of three weeks prior to these deadlines. If you need any support, we will work with you to facilitate through the testing process to ensure your Metering Test Certificate is received to meets these deadlines. This is to alleviate operational constraints and ensure timely processing of submissions.

Please refer to G1 – Capacity Market Metering to check the Metering Test Certificate deadlines.

Metering Deadlines

To improve the experience for Capacity Providers and make it easier to understand their obligations, we have consolidated the deadlines for Metering Assessments and Metering Tests on our Settlement Data for Capacity Providers webpage.

You will need to complete the following metering processes within My EMRS:

• Metering Configuration
• Component Reallocation
• Change Requests

Metering Configuration

Prior to the start of each Delivery Year, 1 October, we require Capacity Providers to submit Metering Configuration information for all CMUs with Capacity Agreements. To aid you in completing this process please read WP26 – Capacity Provider Metering Configuration. We have also created a short training video to support Capacity Providers with navigating the Change Request functionality within My EMRS.

Failure to submit your Metering could delay payments and/or potentially lead to agreement termination. Your Metering Configuration information will also support you in completing your Satisfactory Performance Days and Extended Performance (if applicable) obligations.

During a Stress Event, the Metering Configuration provided will be used as the basis for aggregating Metered Volumes in the Settlement System to demonstrate whether you have delivered your Capacity Obligation. If no Metering Configuration information is available, this could lead to Penalty Charges.

Please be aware you must have the correct level of authorisation to be able to both save and submit Metering Configuration information. The process is not complete until you receive confirmation that the Metering Configuration information has been successfully approved.

You must log in to My EMRS and check all components allocated to a CMU have been approved.

Component Reallocation

Adding Components

Within five working days of the notification, the Capacity Provider must submit the following for each DSR CMU Component:

1. Detailed line diagrams showing electrical configurations and metering sites at which the DSR CMU Components are located;
2. Metering Assessment for the CMU; and
3. Metering Test Certificate, if applicable, within 40 working days of the notification.

It is important to note for each CMU, a Capacity Provider cannot send a notification (that it wishes to add a CMU Component) more than ten times within a Delivery Year. Additionally, a Capacity Provider can only add up to 40 new DSR Components within one Delivery Year.

The Capacity Market Metering Register will be updated to include the DSR Component Reallocations.

Removing  

A Capacity Provider may notify EMRS via My EMRS that it wishes to remove one or more Demand Side Response (DSR) CMU Components from a CMU.

The exception to this is if a CMU has been awarded a Capacity Agreement exceeding one Delivery Year and has not yet met the requirements of obtaining a DSR Test Certificate.

To aid you in completing this process, please read G1 – Capacity Market Metering. We have also created a short training video to support Capacity Providers with navigating the Component Reallocation functionality within My EMRS.

Within five working days of this notification, the CMU Component must no longer be included in any determination of the DSR Volume of the DSR CMU from which it was removed.

Please note the CMU Component(s) cannot be reinstated as part of a DSR CMU in the same Delivery Year.

Change Requests

A Capacity Provider may propose to make changes to a CMU’s Equipment and/or Metering Configuration.

To aid you in completing this process please read G1 – Capacity Market Metering. We have also created a short training video to support Capacity Providers with navigating the Change Request functionality within My EMRS.

EMRS will then review the proposed changes and let the Capacity Provider know of the outcome.

Capacity Providers can submit metered volumes via a number of sources:

• Balancing and Settlement Code Company (BSCCo) Balancing Mechanism Units (BMU)
• Supplier Settlement (Non-BMU) Capacity Providers will need to request their Supplier(s) sends a D0354 data flow to the appointed Half Hourly Data Aggregator (HHDA). This will trigger the HHDA to send D0357 data flows to EMRS. Appendix 10 of WP195 – CM and CfD Metered Data contains a D0357 Set Up email template that Capacity Providers can use when contacting Suppliers.
• Self-submission by the Capacity Provider or their appointed Data Collector (DC)Uses a defined CSV format to uploaded data into the Settlement System via Secure File Transfer Protocol (SFTP) account with EMRS. Contact the Service Desk to setup an SFTP account.
• Self-submission metered volumes can also be sent to us via the Electricity Settlements Company (ESC) Head End system (HES). Once metered data is submitted via the HES, ESC will aggregate and validate the data before forwarding it to EMRS on behalf of participating Capacity Providers.

What is the importance of submitting Metered Data?

The importance for Capacity Providers submitting Metered Data:

• To pass Satisfactory Performance Days and Extended Performance (if applicable) obligations and avoid suspension or termination
• Assist in minimising any Penalties incurred should a Stress Event occur

When do I need to start submitting Metered Data?

Capacity Providers with CMUs using both the Supplier Settlement (Non-BMU) and Self-submission metering pathway need to establish these arrangements in advance of the start of the Delivery Year, 1 October each year.

Metered Data needs to start being submitted from the start of the Delivery Year. BMU and Supplier Settlement (Non-BMU) data is submitted in accordance with the BSC Settlement Calendar and this calendar is available on the Elexon Portal.

We encourage Capacity Providers to ensure that their metered volumes are submitted to EMRS or via the HES on a daily or weekly basis and also monitor their metered data is being received by EMRS, via downloading your Metered Data report from My EMRS.

Supplier Settlement (Non-BMU)

Capacity Providers using the Supplier Settlement (Non-BMU) metering pathway are responsible for the status of the data flow arrangements and should check on a periodic basis from start of the Delivery Year and throughout.

Background Information

The data flow D0357 – Half Hourly Metered Data for EMR is used in both the Capacity Market and Contract for Difference schemes.

This supports the processes and interactions between a wide variety of participants including Suppliers, Distributors, and Central Data Bodies when a customer goes through a Change of Supplier.

The Data Transfer Catalogue (DTC) is the data catalogue for Retail Energy Code (REC) parties, detailing the data flows that accommodate the inter-operational exchange of information between industry participants via a standardised format. You can view the ElectraLink Data Transfer Catalogue (DTC) which provides information on the data flow structures and data items.

How to setup Supplier Settlement (Non-BMU) volume flows (D0357)

The process steps to setup D0357 – Half Hourly Metered Data for EMR is detailed in BSCP503: Half Hourly Data Aggregation for SVA Metering Systems Registered in SMRS. In addition, a summary guidance is available, HHDA Metering Solution for EMR.

Where a Capacity Provider has CMU(s), which contain MPAN(s), they must ask their Supplier to send D0354 data flow to the HHDA to trigger the creation of D0357 data flows. Appendix 10 of WP195 – CM and CfD Metered Data contains a D0357 Set Up email template that Capacity Providers can use when contacting Suppliers. Please do ensure you follow the BSCP503 and reference the HHDA Metering Solution for EMR guidance.

To setup a D0357 the Supplier must send a D0354 data flow from the supplier to the HHDA. The D0354 need to include the following information:

• Instruction Number – Mandatory
• MPAN – Mandatory
• Effective from Settlement Date {MSCM} – Mandatory
• Effective to Settlement Date {MSCM} – optional
• Contract Reference – optional

Although “Effective to Settlement Date {MSCM}” is optional we advise this is populated. Please keep a record, for each MPAN, of the effective to date. Prior to reaching the effective to date a new D0354 instruction with a revised effective from date must be issued to ensure the D0357 continue to be received by EMRS.

The HHDA will respond with either:

• D0355 – this is an acceptance from the HHDA to the supplier
• D0356 – this is a rejection*

*Where the HHDA responds with a rejection (D0356), the Supplier must resolve the rejection reason and a new D0354 data flow issued. D0357 data flows is not issued until the HHDA responds with an acceptance (D0355).

If the Effective to Settlement Date is not populated, some HHDA’s will default this value however you may not know what has been used until the data flows stop being produced.

Note: If you change your Supplier this will result in the de-appointment of the HHDA and a new relationship must be established, this is through a D0354 data flow from your new Supplier.
This validity of data flows will also assist in minimising any penalties incurred should a Stress Event occur.

Further information

EMRS published ‘How to setup the D0357- Half Hourly Metered Data for EMR data flow’ within our news section to support both Capacity Providers and Suppliers.

Also, we wanted to highlight within Section S of the Balancing and Settlement Code it confirms the requirement on Suppliers in respect of supporting this process:

2.9 Provision of Data to a CM Settlement Services Provider

2.9.1 Where a Supplier that is the Registrant of an SVA Metering System associated with CM Assets is so requested by a customer or generator that has entered into a Capacity Agreement in respect of those CM Assets then that Supplier shall ensure that its Half Hourly Data Aggregator provides metered data relating to that SVA Metering System to a CM Settlement Services Provider in accordance with BSCP503.

Self-submission by the Capacity Provider or their appointed Data Collector (DC)

Defined CSV format

For those who have selected self-submission, by the Capacity Provider or their appointed Data Collector (DC), a defined CSV format is used to provide the metered volumes to EMRS.

The requirements and file format are available in WP195 – Capacity Market and CfD Metered Data and please refer to the following:

• Appendix 1 – CSV File Requirements
• Appendix 2 – CSV file format

Supporting information on Secure File Transfer Protocol (SFTP)

Account Creation

Capacity Providers who need an SFTP Account will need to contact the Service Desk to request a SFTP account and will need to confirm the following details:

• EMR Party ID:
• Capacity Provider ID:
• SFTP Account Contact Name:
• SFTP Account Contact Email:
• SFTP Account Contact Mobile (password will be sent to):

Once your account has been created, EMRS will issue your login details and provide any supporting information.

SFTP Account Structure

You will only use the STEP001_IN, STEP001_OUT and STEP001_ARCHIVE, folders for the submissions of metered data.

• STEP001_IN is where you will submit your metered data.
• STEP001_OUT is where you will see your notifications.
• STEP001_ARCHIVE is where you will see your archived notifications.

We encourage Capacity Providers to monitor the STEP001_OUT to identify if they have received the ‘Metered Data unsuccessfully loaded Notification’.

SFTP Notifications

Capacity Providers receive the below notifications when they submit their metered data:

• Metered Data Received Notification
• Metered Data Successfully Loaded Notification
• Metered Data Unsuccessfully Loaded Notification

As noted above Capacity Providers are encouraged to monitor the STEP001_OUT to identify if they have received the ‘Metered Data Unsuccessfully Loaded Notification’.

If Capacity Provider’s need further assistance with determining why their submitted CSV Metered Data file has unsuccessfully loaded, please contact the Service Desk and provide the following details:

• Metered Data file name:
• Date csv file uploaded to SFTP folder:
• CM Units affected:

Forgotten SFTP Password

If you have forgotten your SFTP password, please contact the Service Desk who will assist with your query.

Self-submission via ESC’s Head End System (HES)

Instead of manually submitting metered data via SFTP accounts, Capacity Providers who opt in to the Head End System (HES) have their metered data collected by ESC, who then submit it to EMRS on their behalf using ESC’s dedicated SFTP account.

If you opt in to use the HES, ESC will manage all failure notifications and communications directly with you. Please note that all existing data validation rules will still apply. The system is designed so that if the same metered data is later submitted by the Capacity Provider, the later data will take precedence and automatically replace the version submitted by ESC.

How do Capacity Providers opt in?

Only Capacity Providers who choose to opt in will be included in this process.

Capacity Providers who are interested in opting in to use the HES can contact ESC at [email protected] to receive more information.

What are the benefits of using the HES?

The self-submission by the Capacity Provider or their appointed Data Collector (DC) metering pathway is more laborious than other submission pathways that are automated.

Due to this, there is a risk that manually submitted metered data is either inaccurate, or the files may fail the formatting requirements for loading into the EMRS Settlement System. At present, EMRS investigates failed submissions only upon request. However, by opting to submit metered data through the new HES, this process becomes automated, with proactive monitoring and investigation of file failures, ultimately reducing the burden on Capacity Providers and increasing data accuracy.

Therefore, the submission of metered data via the HES:

• Improves delivery assurance
• Reduces administrative burden for Capacity Providers
• Decreases the amount of file submission errors

More information is available in WP195 -CM CfD Metered Data. If you have further queries please contact [email protected].

Prior to the start of a Delivery Year, we’d like to inform Capacity Providers of the following:

• Amending registration details with EMRS
• Submission of Metered Volumes
• Volume Reallocation
• Receiving Capacity Provider Payments

These are areas that the EMR Delivery Body (DB) would like to highlight:

• Secondary Trading with Delivery Body
• Register for Volume Reallocation with the Delivery Body
• Completing Satisfactory Performance Days (SPD) and Extended Performance
• Stress Event – Capacity Market Warnings

We manage Capacity Provider payments on behalf of Electricity Settlements Company (ESC). Capacity Providers will be issued with a Credit Note on the 28^th  Working Day following the end of the relevant Delivery Month.

The credit notes and associated settlement files will be emailed to the company email addresses. You also have My EMRS, an additional channel to download your settlement files. We will make payments to the bank account details we hold within My EMRS.

G17-Capacity Provider Payments provides further details about these payments.

Key Figures for Payments confirms the Monthly Weighting Factor.

EMRS Settlement Calendar provides a schedule of when payments for Capacity Providers will be invoiced, when payment is due, and if applicable, the Settlement Date and the Settlement Run.

Satisfactory Performance Days (SPD)

A CMU is required to demonstrate its capacity at or above its Capacity Obligation during at least one Settlement Period on three separate Settlement Dates by 30 April of each Delivery Year. At least one of these Settlement Dates must fall between 1 January and 30 April.

Extended Performance Testing (EPT)

Extended Performance Testing requirements are as follows:

• A CMU with a Storage Generating Technology Class will be required to demonstrate extended performance at a level equal to or greater than their Adjusted Connection Capacity for the number of consecutive Settlement Periods equivalent to the storage duration.
• Extended Performance must be demonstrated by 30 April, or by the Substantial Completion Milestone for New Builds (if that date is later than 30 April).
• CMUs with longer storage duration will need to demonstrate Extended Performance to the maximum duration stated within the Electricity Capacity Report for the relevant auction.
• Multi-year Agreements must demonstrate Extended Performance during at least one Satisfactory Performance Day in the Winter of the first Delivery Year and then once every three years.

What is the SPD and EP Pass Report?

The SPD & EP Pass Report is produced by the Electricity Settlements Company (ESC) with an automation that exlcusively uses the metered volumes and actual data provided by Capacity Providers to us, meaning any estimated data will be excluded from all calculations. This is to ensure we are using the most accurate data to assess CMU performance. Capacity Providers can check the Pass Report for their CMUs to understand if they have passed or not. A CMU will only be added to the Pass Report once the automation finds three separate Settlement Dates within the required window or where it has met the generation requirement.

The SPD and EP Pass Report is published directly on our website and is available via the SPD and EP Pass Report dropdown in the Settlement Data for Capacity Providers section. The Pass Report was previously published on the Electricity Settlement Company’s Data Portal.

The Pass Report is published fortnightly throughout the Delivery Year. However, during March and April, the frequency will increase to weekly as the SPD and EP window nears closure.

If your CMU appears on the Pass Report it means you have passed and no further action is required.

CMU Portfolios are the only CMUs that will not automatically be included in the SPD Pass Report. You will be required to follow the existing Portfolio Submission process with the EMR Delivery Body and will need to follow the process outlined in the EMR Delivery Body Guidance.

Why is my CMU not appearing within the Pass Report?

Some of the main reasons your CMU(s) are not on the Pass Report, are below:

1. The CMU has not exceeded its total Capacity Obligation and/or Adjusted Connection Capacity as per the SPD and EP rules for the specific auction
2. Data setup is not complete (MyEMRS Registration, Metering Configuration, Metered Volume Data flows or another issue)
3. If it is prior to 1 January, for the specific auction, the CMU is required to pass at least one SPD between 1 January and 30 April.

If you believe your CMU should be included on the Pass Report or there is an issue with the data or setup, please contact us immediately.

What happens if my CMU fails to meet SPD or EPT obligations by 30 April?

If a CMU fails to meet its Satisfactory Performance Day (SPD) or Extended Performance Testing (EPT) obligations by 30 April, the Delivery Body will suspend the agreement, resulting in the loss of at least one month of Capacity Payments. The CMU will then have until 31 July to demonstrate three additional SPDs or Extended Performance. If this requirement is not met by the deadline, all Capacity Payments received will be recouped, and a termination event will be triggered.

How have baseline calculations for DSR CMUs been refined?

The baseline calculations for DSR CMUs have been refined to better assess performance in line with Schedule 2 of the Capacity Market Rules:

• For the baseline calculation, any components in a CMU’s Metering Configuration that have no meter readings for the relevant SPD period will be excluded.
• Baseline demand will be calculated per DSR Component and then summed to a CMU level. Previously baseline demand was calculated at a CMU level.

These updates will provide a more precise measure of CMUs performance.

Where can I find additional supporting information?

EMR Delivery Body publish the Satisfactory Performance Days and Extended Performance Guidance document and you can locate this via Agreement Management in the Knowledge Base and select the relevant CMU type (e.g., Existing) and scroll down to locate.

A System Stress Event is defined in the Capacity Market Rules and is where the System Operator has instructed (involuntary) load reduction to maintain the security of the transmission system in the event of a shortage of generation to meet demand.

If a System Stress Event occurs after a Capacity Market Warning, Capacity Providers will be required to deliver their Adjusted Load Following Capacity Obligation (ALFCO).

System Stress Event Webinar

EMR Delivery Body, ESC and EMRS hosted a webinar to explain to Capacity Providers about the various activities, both prior and post if a System Stress Event happened. You can watch the webinar recording on YouTube, step through the presentation slides and also see the Q&A raised during the webinar.

Capacity Market Warnings

Are you registered to receive Capacity Market Notices? If you have not yet registered please register to receive these notifications via this link: GB Electricity Capacity Market Notices. This website displays all electricity Capacity Market Notices (CMN) issued by National Energy System Operator (NESO). The site also provides frequently answered questions.

There are a number of other system warnings that can be issued when there is an insufficient margin between supply and demand. These are often linked but are not dependent on one another. For example, an Electricity Margin Notice (EMN) could occur following a CMN. An EMN is issued when NESO believes there is a significant risk that generation will not meet demand. However, a CMN could be issued and resolved before an EMN is needed, or an EMN could be issued without a CMN if the problem needs to be resolved quickly, for example, a large unplanned outage.

This topic is covered in the webinar mentioned above, and more information about CMNs and EMNs is detailed on slides 11-15 of the presentation slides

Volume Reallocation

After a System Stress Event has occurred, Capacity Providers may use Volume Reallocation if they have under or over-delivered compared to their Capacity Obligation. The process involves each participating CMUs to submit Capacity Market Volume Reallocation Notification (CMVRN) to EMRS who validate the CMVRN and volume reallocate. Capacity Providers use My EMRS to submit CMVRNs to EMRS.

We have produced a webinar-style training video to guide Capacity Providers through the Capacity Volume Register and Volume Reallocation process. You can watch the recording on Vimeo, step through the presentation slides, and also see the glossary of data items discussed during the session.

WP48 – Volume Reallocation details the process and timescales associated to this process.

The Capacity Volume Register will be published on the Settlement Data page from the 24th to 33rd Working Day inclusive after the end of the month in

Mock System Stress Event Reporting

To support Capacity Providers understand the output included within the Capacity Volume Register, ESC and EMRS have produced the Mock System Stress Event Reporting which was first undertaken within the 2022/23 Delivery Year.

This activity will continue for future Delivery Years in the winter period. More information is available on the Mock System Stress Event Reporting webpage.

Essential Reading & Information

Consolidated information on System Stress Events can be found in G18 – Capacity Market Stress Event Guide.

This Guidance Document provides more information on the following:
• Overview of System Stress Event
• Adjusted Load Following Capacity Obligation (ALFCO)
• Metered Data submission
• Balancing Services Data submission
• Volume Reallocation
• Penalty Invoice calculation
• Disputes
• Black Starts

Please also refer to System Stress Event FAQs.

If you have any further System Stress Event-related queries please do contact the Service Desk and we’d be happy to help.

Capacity Provider Penalty

These are financial penalties imposed on Capacity Providers who fail to meet their Capacity Obligations during a System Stress Event. Penalties are related to a Capacity Provider’s Capacity Payments and are capped at 100% of a Capacity Provider’s annual Capacity Payment with respect to a Capacity Market Unit (CMU), and at 200% of the CMU’s Capacity Payment for any individual month.

Over Delivery Payments

This is a payment made to a Capacity Provider that has delivered more than its Capacity Obligation during a System Stress Event. This payment is funded by the Penalties collected. Therefore the payment is calculated and made at the end of the Delivery Year once all Penalties have been received.

G17-Capacity Provider Payments provides further details about these payments.