In October, we convened the Perseus Technical Advisory Group, chaired by Icebreaker One.
Date: 27th October 2025 10:30-11:00 BST
Chair: Frank Wales, IB1
Secretariat: IB1
The meeting aims were as follows:
- Update on Perseus
- Workshop readout
- Vote on gas methodology
Summary:
- It was discussed that banks generally expect technology service providers to align with ISO 27001 standards, but it is unclear whether trust services, which do not directly process the data FSPs receive via Perseus, would be held to the same requirements
- It was discussed that documentation must accurately reflect deployed systems.
- It was noted that the sandbox environment is now fully operational, with enhanced error reporting expected in Q4 and deliberate error-state testing to follow
- It was noted that the Centre for Net Zero has a synthetic smart meter data service- https://www.centrefornetzero.org/technologies/faraday. It was agreed that it should be assessed for inclusion in the sandbox in 2026
- It was noted that external status dashboards are launching shortly
- It was noted that remaining production activities include a third-party security assessment this quarter, activation of live certificate authorities distinct from the sandbox, and performance monitoring once SLA requirements are defined. A community forum for member collaboration is planned for 2026.
- It was discussed that gas methodology approval will require a simple legal change—adding “and gas” to permission text—and that the selected technical approach uses half-hourly gas consumption data with government annual emissions factors.
- It was noted that data provenance for blended electricity/gas reports introduces complexity, as multiple emissions factor sources are required and individual data points will not be tied to specific factors; provenance metadata will document overall sources.
- It was agreed that future considerations include potential specification updates for biogas grid integration (to be reviewed by IB1) and that regional gas grid variations are not yet addressed.
- A vote took place on the “Approval of data specifications for gas consumption and emissions calculation”