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Tariff Interoperability Phase 1a: Government response and updated technical documents published

DESNZ, supported by RECCo, has published the Government Response to the consultation on the TI Phase 1a Technical Specification, as part of the Smart Secure Electricity Systems (SSES) programme. The publication follows a targeted industry consultation held between 27 August and 17 September 2026. Feedback from seven organisations has informed updates to the technical documents […]

Looking ahead: Upcoming industry consultations

We know that some of these consultations will involve the same organisations and subject-matter experts. We’re sharing an early view of what’s coming to help stakeholders plan their time, review the proposals, and provide feedback. Tariff Interoperability – Phase 1a Phase 1a is the first stage of the wider Tariff Interoperability Project. The consultation will […]

Round-up: Tariff Interoperability webinar – 8 July 2026

RECCo welcomed stakeholders from across the energy sector to its latest Tariff Interoperability (TI) industry webinar, providing an update on Phase 1a implementation following the publication of the Government Response in May 2026.  The session marked an important milestone as Tariff Interoperability moves from policy development into implementation. Speakers outlined what suppliers should be doing now […]

Join us: Tariff Interoperability Webinar – 8 July 2026

Who should attend? The webinar is intended for domestic electricity suppliers and other industry stakeholders involved in delivering tariff interoperability requirements and preparing for future implementation activities, particularly those supporting tariffs available to domestic customers and non-domestic customers within the scope of the arrangements What to expect During the session, the project team will: Provide […]

Tariff Interoperability Arrangements Published

DESNZ Approves Implementation of Tariff Interoperability Arrangements within the REC The Department for Energy Security and Net Zero (DESNZ), supported by RECCo, has now published the Tariff Interoperability (TI) Phase 1a arrangements under the Smart Secure Electricity Systems (SSES) Programme. Tariff Interoperability will support consumer-led flexibility by standardising how electricity tariff pricing data is shared […]

Join our Tariff Interoperability Consultation Webinar

Have your say This joint Tariff Interoperability Arrangements Consultation session, hosted by RECCo and the Department for Energy Security and Net Zero (DESNZ) on 17 December 2025 (11:30–12:30 GMT), is open to all REC Parties and industry stakeholders. The session will be co-led by Project Manager Kevin Redmond and Senior Responsible Owner Chris Stock, with input from DESNZ Policy […]

Board Highlights: August 2025

The RECCo Board met in August 2025, chaired by Hannah Nixon, to review progress and discuss key priorities as RECCo delivers its 2025–28 Forward Work Plan. This summary captures the main updates and decisions from the meeting.

Laying the foundations for a Smart Energy Grid: Our efforts to introduce a Tariff Interoperability Data Specification

New Tariff Interoperability Data Specification As part of the energy system’s move toward greater flexibility and digitalisation, we’re working with DESNZ to develop a new Tariff Interoperability Data Specification. The aim? To make it easier for third-party service providers, such as Flexibility Service Providers, to access up-to-date tariff information in a consistent, secure, and efficient […]