This Practice Note focuses on the enduring regime aspects of the TMO4+ grid connection reforms, which is the long-term basis on which electricity grid connections are applied for and determined in Great Britain (GB). It covers: • the key features of the post-TMO4+ enduring grid connections regime • how in-scope projects apply for a grid connection in the enduring regime • how the enduring regime differs from: ◦ the pre-TMO4+ grid connections regime, and ◦ the one-off ‘Gate 2 to Whole Queue’ (G2TWQ) exercise, another key aspect of TMO4+ which, broadly, re-orders the contracted connections queue prior to TMO4+ through to 2035. The G2TWQ evidence submission window closed at 23:59 on 26 August 2025 (see: LNB News 28/08/2025 2), with revised connection offers being issued to applicants in batches until (at least) March 2027 (see: Connections reform timeline) • complementary reforms to TMO4+ and practical issues that energy developers, funders and other stakeholders should be aware of in terms of grid connection applications This Practice Note is part of

Note that additional commentary on the issues discussed in this Practice Note in the context of the regulation, consenting and incentivisation of the net zero energy transition is available in the following textbook that we have published: Collinson and Hockman on Energy Law: Regulating, Consenting and Incentivising the Energy Transition. This Practice Note is part of a series on the TMO4+ grid connection reforms, approved by Ofgem on 15 April 2025 and effective from 10 June 2025 in relation to electricity grid connections in Great Britain (GB). It focuses on the one-off ‘Gate 2 to Whole Queue’ (G2TWQ) process that forms a central part of the TMO4+ reforms by re-ordering the previous contracted grid connection queue through to 2035, based on certain criteria. It explains: • what the key features G2TWQ are in the context of the broader TMO4+ reforms • the role of key industry code modifications implementing G2TWQ, namely Connection and Use of System Code (CUSC) modification CMP435, associated connection methodologies and other legal sources • what ‘protections’ are in the

Note that additional commentary on the issues discussed in this Practice Note in the context of the regulation, consenting and incentivisation of the net zero energy transition is available in the following textbook that we have published: Collinson and Hockman on Energy Law: Regulating, Consenting and Incentivising the Energy Transition. This Practice Note introduces the reforms to the Great Britain (GB) electricity grid connection process collectively known as ‘TMO4+’, approved by Ofgem on 15 April 2025 and effective from 10 June 2025. It is part of a series on the TMO4+ grid connection reforms. TMO4+ was developed by the National Energy System Operator (NESO) and its predecessor, National Grid Electricity System Operator Limited (NGESO), over several years. The final set of reforms were developed with support from Ofgem and the Department for Energy Security and Net Zero (DESNZ) throughout the process, as well as regular industry consultation. TMO4+ represents a fundamental shift in GB’s approach to connecting new energy generation, storage and demand projects to the electricity grid (both at transmission and distribution levels).

Note that additional commentary on the issues discussed in this Practice Note in the context of the regulation, consenting and incentivisation of the net zero energy transition is available in the following textbook that we have published: Collinson and Hockman on Energy Law: Regulating, Consenting and Incentivising the Energy Transition. What is TMO4+? ‘Target Model Option 4 +’ (TMO4+) is a major package of reforms approved by Ofgem in April 2025 and representing a comprehensive overhaul of Great Britain’s electricity grid connections process. The reforms were prompted by the UK government’s climate commitments and by the ongoing inefficiency and delays of the current grid connection process, creating major barriers to investment and renewable energy deployment. This section briefly explains the TMO4+ reforms, underlining the differences between the historic system of grid connection and the one implemented through TMO4+. It also identifies the energy sector participants who are most likely to be affected by TMO4+ reforms. Background Pre-TMO4+, the process for obtaining a grid connection

TMT Brexit News Analysis ARCHIVED: This Practice Note has been archived and is no longer maintained. LexisNexis® TMT has published News Analysis on a range of issues concerning the implications of Brexit, as set out in the table below. Date News Analysis Brief description of News Analysis 6 July 2021 European Commission withholds consent for UK to accede to Lugano Convention LNB News 06/07/2021 99 The Federal Department of Foreign Affairs (FDFA) of Switzerland has announced that it has received a letter from the European Commission in which the Commission, acting on behalf of the EU, withholds consent to invite the UK to accede to the Lugano Convention. The letter was sent to the Swiss FDFA in its capacity as Depository of the Lugano Convention. 28 June 2021 European Commission adopts adequacy decisions for UK LNB News 28/06/2021 80 The European Commission and the government have announced that the Commission has adopted two adequacy decisions under the EU’s General Data Protection Regulation, Regulation (EU) 2016/679 (EU GDPR) and the Data Protection Law Enforcement Directive,

ARCHIVED: this archived Practice Note is not maintained and is for background information purposes only. Further, some of the links may not direct you to the provisions as at the date the guidance in this Practice Note was published. This year’s annual round-up reviews some of the most significant developments of 2017 and previews what is on the horizon for 2018. This includes news of the GDPR’s progress; important changes in telecommunications, including the end of roaming charges and the changes introduced by the Digital Economy Act 2017 (DEA 2017); details of the government’s Industrial Strategy; and key developments in media. Also included are updates on LexisNexis®’s content, including news of exciting developments from the past year and what is coming up in the next 12 months. Reviewing 2017 New technologies What happened? New and emerging technologies such as artificial intelligence, autonomous vehicles and blockchain have dominated the headlines in 2017, with a number of government initiatives and legislative developments announced. In January 2017, the government published a Green Paper setting

This Practice Note is a horizon scanner tracking key future developments in the field of technology, media and telecoms (TMT) in the UK. It provides details of key dates for your diary (including forecasted dates where the actual date is unknown) and relevant commentary in relation to: • Legislation: ◦ Bills in progress ◦ Acts not in force, partially in force or subject to staged introduction ◦ Statutory Instruments (SIs) in progress, partially in force or subject to staged introduction • Key case appeals: ◦ Supreme Court ◦ Court of Appeal • Other key developments: ◦ Open consultations and consultations pending a response ◦ Miscellaneous This horizon scanner does not cover past developments, such as legislation fully in force or judgments that have been handed down. For details of past developments in 2026 in the field of TMT in the UK, see Practice Notes: • Adtech and programmatic advertising—tracker • Copyright and databases tracker—UK • Data protection, privacy and confidential information case law tracker • Media, digital and telecoms tracker—UK • Online Safety Act 2023—tracker • Thaler

Welcome to this week’s edition of the TMT weekly highlights: a hand-picked summary of news analysis, updates and new content from across the technology, media and telecoms sectors. These highlights focus on key topics including new technologies, software, cloud computing, internet, outsourcing, music, film & television, publishing, defamation and telecoms.

This week's edition of TMT weekly highlights includes a hand-picked summary of news analysis, updates and new content from across the technology, media and telecoms sectors. These highlights focus on key topics including new technologies, software, cloud computing, internet, outsourcing, music, film & television, publishing, defamation and telecoms.

Welcome to this week’s edition of the TMT weekly highlights: a hand-picked summary of news analysis, updates and new content from across the technology, media and telecoms sectors. These highlights focus on key topics including new technologies, software, cloud computing, internet, outsourcing, music, film & television, publishing, defamation and telecoms.

Welcome to this week’s edition of the TMT weekly highlights: a hand-picked summary of news analysis, updates and new content from across the technology, media and telecoms sectors. These highlights focus on key topics including new technologies, software, cloud computing, internet, outsourcing, music, film & television, publishing, defamation and telecoms.

Welcome to this week’s edition of the TMT weekly highlights: a hand-picked summary of news analysis, updates and new content from across the technology, media and telecoms sectors. These highlights focus on key topics including new technologies, software, cloud computing, internet, outsourcing, music, film & television, publishing, defamation and telecoms.