P477 Data Protection Provisions for Market-wide Half Hourly Settlement

The purpose of this Modification is to address the need for personal information sharing in the Balancing and Settlement Code (BSC), once the Market-wide Half Hourly Settlement (MHHS) arrangements are operational.

Under the current settlement arrangements Elexon receives meter volume data that is aggregated, meaning that this does not constitute personal data. The BSC currently does not include anything other than generic data protection provisions that require Parties to comply with data protections laws.

Once the Market-wide Half Hourly Settlement (MHHS) operating model is in place, and BSC Parties (specifically Suppliers and Distribution System Operators (DSOs)) will be required to submit personal data to BSC central systems, these provisions will no longer be fit for purpose. The personal data will include MPAN Core data, MPAN address and Meter ID data.

Data protections laws create certain obligations in this scenario, including a requirement for there to be a written contract setting out the basis on which that personal data may be processed. In addition, data protection laws require that written contract to include certain provisions that are specified in the UK General Data Protection Regulation (GDPR). In order to remain compliant with data protection laws, the BSC needs to include provisions that set out the terms on which this personal data is being shared.