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Nuclear Energy meaning

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What does Nuclear Energy mean?
In legal practice, nuclear energy describes energy produced by nuclear fission or fusion, or released by radioactive decay, and the civil activities that generate, use, transport or manage it. The phrase itself is descriptive rather than a defined statutory term; legislation instead regulates reactors, nuclear installations, nuclear material and radioactive substances. Across England & Wales, Scotland and Northern Ireland, nuclear energy work typically engages: nuclear site licensing and safety/security oversight by the Office for Nuclear Regulation (Energy Act 2013); environmental permitting and radioactive substances controls (under devolved regimes); radiation protection and emergency planning (including REPPIR 2019); transport of radioactive material; safeguards (Nuclear Safeguards Act 2018 and regulations); decommissioning and waste management (including the Nuclear Decommissioning Authority under the Energy Act 2004); and civil liability and insurance for nuclear damage (Nuclear Installations Act 1965 and related conventions). Usage is broadly consistent across the UK, though planning and environmental regulation are devolved and permitting frameworks differ. Ireland has no civil nuclear power generation; regulation focuses on radiation protection, radioactive sources and waste under the Radiological Protection Acts, Euratom law and IAEA obligations, enforced by the Environmental Protection Agency. The term is commonly used in contracts, licensing, decommissioning, insurance and regulatory compliance to delineate activities...
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NEWS
EU competition update: CJEU dismisses RWE/E.ON–Innogy appeals, no single concentration; AG on co-operative fine cap; GBER ruling on natural-person control; merger clearances and notifications

Mergers Court of Justice dismisses appeals by German energy utility companies regarding Commission’s decision to approve the acquisition by E.ON of the distribution and retail energy business as well as certain general assets of Innogy The Court of Justice has handed down its judgments in joined appeals C-171/24 P, C-172/24 P, C-173/24 P, C-174/24 P, C-175/24 P, C-176/24 P, C-177/24 P, C-178/24 P, and C-179/24 P, brought by German energy utilities against the Commission. These challenges targeted the General Court’s rulings that had rejected actions seeking annulment of the Commission’s decision conditionally authorising a related transaction involving E.ON and RWE’s assets. Each appeal was dismissed by the Court of Justice. The nine appeals concerned the General Court’s judgments in cases T-53/21, T-55/21, T-56/21, T-58/21, T-59/21, T-61/21, T-62/21, T-64/21, and T-53/21, which upheld the Commission’s 17 September 20219 decision conditionally clearing the acquisition by RWE of E.ON’s renewable and nuclear electricity generation assets (M.8870). The Court of Justice dismissed all nine appeals. Background RWE and E.ON are...

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NEWS
UK and EU environmental law weekly: consultations, policy and case updates across climate, hydrogen, buildings, enforcement, nuclear, ESG, chemicals (PFAS), biodiversity, waste and water—9 October 2025

In this issue: Air emissions and climate change Contamination and pollution Energy efficiency and buildings Energy for environmental lawyers Environmental information Environmental taxes, reliefs and incentives ESG and sustainability Hazardous substances and chemicals Nature, biodiversity and habitat conservation Waste Water, flooding and drainage Daily and weekly news alerts New and updated content Air emissions and climate change Greenhouse Gas Removals (GGR)-UK government publishes Business Model documentation On 27 August 2025, the Department for Energy Security and Net Zero (DESNZ) released a suite of papers on its proposed Greenhouse Gas Removals (GGR) Business Model and accompanying policy. The Lexis+ Energy team, working with Navraj Singh Ghaleigh, Senior Lecturer in Climate Law at the University of Edinburgh Law School, set out the context for the GGR Business Model; its relationship with the Power BECCS Business Model; the technologies the GGR framework intends to encompass; its legal footing and principal features; and how...

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NEWS
UK and EU environmental law weekly update: emissions trading, energy and nuclear, ESG reporting, UK REACH, waste and producer responsibility, biodiversity, marine, water and litigation—26 February 2026

In this issue: Air emissions and climate change Energy for environmental lawyers Environmental disputes and proceedings Environmental permits and consents Environmental taxes, reliefs and incentives ESG and sustainability Hazardous substances and chemicals Marine Nature, biodiversity and habitat conservation Waste Waste producer responsibility regimes Water, flooding and drainage Daily and weekly news alerts New and updated content Air emissions and climate change DESNZ releases quarterly waste data reporting template for the UK ETS. The Department for Energy Security and Net Zero (DESNZ) has issued a template for quarterly waste data submissions under the UK Emissions Trading Scheme (UK ETS). It is designed for waste operators to use when sending quarterly data reports to their regulator during the voluntary monitoring, reporting and verification (MRV) period. See: LNB News 19/02/2026 50. AFME responds to European Commission consultation on climate resilience legislative framework. The Association for Financial Markets in Europe (AFME) has provided...

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PRACTICE NOTES
Planning and Regulatory Framework for Radioactive Waste in England and Wales: Geological Disposal (NSIPs), Non-geological Routes (TCPA), Policy, Consents, Consultation and Case Law

Scope of this Practice Note This Practice Note sets out the main types of radioactive waste and examines disposal against the EU-defined waste hierarchy. It places contemporary management of radioactive waste within the historical development of the nuclear industry from a planning standpoint. Principal policy documents are reviewed to chart the evolution of government thinking over time. Geological disposal of Higher Activity Waste (HAW) under the Planning Act 2008 (PA 2008) is compared with alternative disposal routes under the Town and Country Planning Act 1990 (TCPA 1990) and the Planning (Wales) Act 2015. Consultation duties, application processes and required consents are identified for both regimes. Notable planning appeals and judicial review cases are highlighted before looking at international approaches to radioactive waste. What is radioactive waste? In the UK, radioactive waste arises—and will arise—from past, current and future programmes for electricity generation from nuclear fission, the reprocessing of nuclear fuel, the development of nuclear weapons, the nuclear submarine fleet and wastes from radioactive materials used for civil...

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PRACTICE NOTES
EU Electricity Regulation 2019/943 (as amended 2024): non-fossil flexibility covering demand response, storage, national assessments and objectives, support schemes, capacity mechanisms, and the demand response network code

Structure of the EU electricity system Rules for the EU electricity system govern two areas: the physical infrastructure for electricity generation, transport and use (often termed the electricity network or grid), and electricity markets (ie the flow of money) Electricity moves through the EU network broadly as follows: Generation — the production of electricity using, for example, fossil fuels, solar, wind, nuclear or geothermal sources Transport — the movement of electricity through the network (or grid), typically divided into: Transmission — long-distance transfer on the extra high-voltage and high-voltage interconnected system, aimed at delivery to final customers or distributors Distribution — carrying electricity from transmission networks and distributing it to consumers. Power from smaller renewables, such as solar and wind, is generally fed into distribution networks Supply — the sale (including resale) of electricity to wholesale customers (who buy for resale) and final customers (who buy...

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PRACTICE NOTES
EU electricity grids—connection, access and operation: regulatory framework, network codes, tariffs, HVDC, emergency/restoration and balancing/capacity mechanisms

Structure of the EU electricity system EU rules on electricity govern two core spheres: the physical set-up for generation, movement and consumption of power (often termed the electricity network or grid), and the organisation of electricity markets (i.e. the flow of money). Electricity moves through the EU grid in broad stages: Generation—the creation of electricity using, for instance, fossil fuels, solar, wind, nuclear or geothermal sources Transport—the conveyance of electricity across the network, typically divided into: Transmission—long-distance transfer on the extra high-voltage and high-voltage interconnected system, with delivery to final customers or to distributors in view Distribution—movement from transmission networks and distribution to consumers. Electricity from smaller renewable installations, such as solar and wind, is generally injected into the distribution networks Supply—the sale (including resale) of electricity to wholesale customers (who purchase for onward sale) and to final customers (who purchase for their own use) As a straightforward analogy,...

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