In response to escalating disputes over offshore wind farm wake effects, the UK government has introduced new rules within its updated National Policy Statements (NPS) for 2025. These rules address the high-stakes conflicts between developers of new projects and owners of existing wind farms, who argue that the "wake" or wind shadow from new installations threatens the financial viability and output of their established assets.

Nature of the Dispute

The core conflict involves two opposing developer perspectives. On one side, companies like Ørsted and Equinor, which own existing wind farms, have warned that wake losses from new, nearby projects could cause severe financial damage. They have argued that developers of new projects should be required to provide mitigation or compensation. On the other side, developers such as RWE and TotalEnergies, who are seeking approval for new large-scale projects, have argued against being mandated to provide such measures.

Government's Policy Response

The government's updated NPS establishes a framework for handling these disputes, acknowledging that wake effects are a complex issue with no clear industry consensus. The key policy decisions are as follows:

Developers are expected to demonstrate "reasonable efforts" to mitigate wake effects, but are not required to fully eliminate them. The government encourages a "good neighbour" approach, which includes conducting wake assessments on nearby developments as part of the consenting process. References to specific physical mitigation measures, such as rearranging turbine layouts, have been removed from the policy. This change was made following consultation feedback that such approaches are often impractical without reducing the new project's output. The government will not define a specific minimum distance required between offshore wind developments, citing that the understanding of wake effect modelling is still evolving and impacts must be considered on a case-by-case basis.

Resolution of Compensation Claims

A crucial element of the new policy is the government's position on financial compensation. It maintains that wake effects are a "commercial matter to be resolved between developers" and explicitly states that the planning system will not adjudicate on compensation arrangements. This represents a significant setback for developers like Ørsted and Equinor, who had pushed for the planning process to mandate compensation. The financial stakes are high, as exemplified by Equinor and SSE's estimate that wake losses from RWE's Dogger Bank South project could cost their nearby farms £582 million.

Precedent for Commercial Resolution

Despite the government's stance, the article notes that a commercial resolution is possible. Ørsted reached a landmark agreement with the developers of the Mona and Morgan offshore wind farms earlier in the year, demonstrating that developers can privately negotiate terms to mitigate wind wake effects without government intervention.

This material is an AI-assisted summary based on publicly available sources and may contain inaccuracies. For the original and full details, please refer to the source link. Based on materials by Cosmo Sanderson. All rights to the original text and images remain with their respective rights holders.