Jurisdiction(s):
United Kingdom

Related legal acts

Key definition

Decommissioning definition

What does Decommissioning mean? Decommissioning describes the end‑of‑life phase of an energy or industrial installation: the managed cessation of operations, making safe, plugging and abandonment (for wells), dismantling and removal of plant, equipment and materials, waste management, and environmental remediation and restoration of the site. It is a descriptive expression used across multiple regimes, but in key sectors it is governed by statute, licences and consents. In the UK, offshore oil and gas decommissioning is regulated under the Petroleum Act 1998 (requiring an approved decommissioning programme and imposing continuing liabilities). Offshore renewables and pipelines are covered by the Energy Act 2004. Nuclear decommissioning...

UK Offshore Wind Decommissioning: International Standards, Energy Act 2004 Scheme, DESNZ/Scottish Ministers Process, Financial Security, Offences and Marine Recovery Funds, and OFTO/TCE Interfaces

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Practice notes

The Requirements for Decommissioning an offshore wind farm at the end of its operational life

Decommissioning obligations chiefly focus on controlling environmental effects and navigational risks so that the public purse is not exposed. For additional practical guidance on key legal issues in the wind sector, refer to the textbook: Wind: Projects and Transactions. The UK’s international duty to retire redundant installations arises from the United Nations Convention on the Law of the Sea 1982 (UNCLOS), which requires the removal of abandoned or disused installations or structures. There is no EU framework specific to offshore wind decommissioning; however, requirements under the EU waste regime remain pertinent. The UK’s domestic regime under the Energy Act 2004 (the Act) also reflects standards and guidelines issued by the International Maritime Organisation (IMO). In England and Wales, oversight of offshore wind decommissioning sits with the Secretary of State (SOS) for the Department of Energy Security and Net Zero (DESNZ); in Scotland, subject to the limitations set out in section 105(1A) of the Act, if an installation is to be or is wholly in an area of Scottish waters or an area of waters in a Scottish...

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Web page updated on 22/05/2026

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