The settlements team is responsible for calculating and initiating payments to ancillary service providers. Each month the team also sends various reports to service providers to allow them to validate these payments as quickly and as easily as possible.
A Preliminary Statement of the ancillary services and also a payment estimate for these services is issued by the eighth business day of the following month that the service was provided. Pleae note that Preliminary Statements are not produced for the Short Term Operating Reserve (STOR) service.
A Final Statement for every ancillary service, along with the self-bill invoices, is issued by the eighteenth business day of the following month that the service was provided. For specific dates please refer to the AS Settlement Timetable.
On 6 October 2011 National Grid Settlements Team held a Settlements Forum to which all Ancillary Services providers and Trading counterparties were invited. The key objectives of the event were:
- To set out our customer commitment.
- To provide an opportunity for our customers to give feedback on the service received and to suggest future improvements.
- To give an overveiw on the Ancillary Services backing data that is available to verify payments.
The presentations given at the forum and questions asked on the day are available on the Settlements Forum page of the website.
Each month the following information is sent to all service providers – for more information please refer to the AS Information Presentation.
- Covering letter
- Self-bill invoice
- Statement summary
- Service summaries
- By-unit summary
- Adjustments (if applicable)
- Detailed backing sheets (technical reports)
Paper copies of the invoices and summary statements (service type by day, specific service by day and specific service by unit) are posted each month. The detailed backing sheets (technical reports showing information for each unit, service, instruction & payment) are sent by e-mail.
For a comprehensive reference document on Short Term Operating Reserve (STOR) events of default - please see STOR Events of Default.
The detailed backing sheets have been revised and the new versions are now e-mailed to service providers.
User guides for the settlement of the main ancillary services are being developed. Please refer to the following links for the current guides;
More guides will be available on the website in due course. In the meantime, we welcome any feedback on these guides, please send any comments to settlement.queries@uk.ngrid.com.
If you should have a particular query or require further information on the settlement of ancillary services please e-mail settlement.queries@uk.ngrid.com.