Consultation on connection reform (TM04+) enablers, including a statutory consultation on modifications to licence conditions

We are publishing a suite of consultation documents on connections reform, collectively known as the TM04+ reform package.

The principal overarching consultation document (main link below) provides an overview of the whole TM04+ reform package, with associated consultation questions relating to the code modifications, methodologies and impact assessment. Our minded-to decisions on the code modifications and methodologies are set out in separate documents.

The separate statutory consultation proposes a suite of licence changes that are required to implement the TM04+ reform package. The proposed licence changes were previously articulated in a policy consultation held between 27 November 2024 and 6 January 2025: Proposed licence changes to enable TMO4+ Connections Reform.

We have also published an impact assessment. This sets out an appraisal of the potential impacts of these reforms across a spectrum of areas, such as consumers, network build, economic growth and outlines benchmarks of success.

Altogether, the TMO4+ reform package proposes a new electricity connections process that embeds ‘ready’ and ‘needed’ criteria into decision-making when managing requests for electricity connections.

Update 10 March 2025

We have added 2 response templates to the subsidiary documents:

license changes response template
TMO4+ package of reforms response template

If possible, please use these templates to formulate your response to our consultation and send your completed response to us in PDF format.

Respond email

connections@ofgem.gov.uk

Main document

[Consultation: TMO4+ Connections Reform Proposals – Code Modifications, Methodologies & Impact Assessment [PDF, 637.72KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Consultation-TMO4%2B-Connections-Reform-Proposals-Code-Modifications-Methodologies-%26-Impact-Assessment.pdf)

Subsidiary documents

[License changes response template [DOCX, 101.08KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-03/License%20changes%20response%20template.docx)

[TMO4+ package of reforms response template [DOCX, 94.99KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-03/TMO4%2B%20package%20of%20reforms%20response%20template.docx)

[Notice to modify the standard conditions of electricity transmission, distribution and system operator licences [PDF, 108.99KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Notice-to-modify-the-standard-conditions-of-electricity-transmission-distribution-and-system-operator-licences.pdf)

[Statutory Consultation on the TMO4+ Reform related Modifications to Electricity Licence Conditions [PDF, 518.72KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Statutory-Consultation-on-TMO4%2BReform-related-Modifications-to-Electricity-Licence-Conditions.pdf)

[Annex A - Electricity System Operator Licence - Proposed Track Changes [PDF, 1.91MB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Annex-A-Electricity-System-Operator-Licence-Proposed-Tracked-Changes.pdf)

[Annex B - Electricity Transmission Consolidated Standard Licence - Propose Tracked Changes [PDF, 1.21MB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Annex-B-Electricity-Transmission-Consolidated-Standard-Licence-Proposed-Tracked-Changes.pdf)

[Annex C - Electricity Distribution Standard Licence Conditions - Proposed Track Changes [PDF, 1.73MB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Annex-C-Electricity-Distribution-Standard-Licence-Conditions-Proposed-Tracked-Changes.pdf)

[TMO4+ Impact Assessment [PDF, 1.40MB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/TMO4%2B%20Impact%20Assessment.pdf)

[Minded-to consultation: System Operator (“SO”) – Transmission Owner (“TO”) Code (“STC”) CM095 – Implementing Connections Reform (‘the Proposal’) [PDF, 345.63KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Minded-to-consultation-System-Operator%E2%80%93Transmission-Owner-Code-CM095%E2%80%93Implementing-Connections-Reform-the-Proposal.pdf)

[Minded-to consultation: Connection and Use of System Code (CUSC) CMP434: Implementing Connections Reform, and CMP435: Application of Gate 2 Criteria to existing contracted background [PDF, 0.99MB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Minded-to-consultation-Connection-and-Use-of-System-Code-CMP434-and-CMP435.pdf)

[Minded-to Decision: Connections Network Design Methodology [PDF, 316.86KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Minded-to-Decision-Connections-Network-Design-Methodology.pdf)

[Minded-to Decision: Project Designation Methodology [PDF, 237.65KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Minded-to-Decision-Project-Designation-Methodology.pdf)

[Minded-to Decision: Gate 2 Methodology [PDF, 367.34KB]

](https://www.ofgem.gov.uk/sites/default/files/2025-02/Minded-to-Decision-Gate%202-Methodology-v2.pdf)