Ørsted A/S Secures Definitive Tax Opinion on UK Offshore Wind Projects

Ørsted A/S, the Danish offshore wind developer, has obtained a definitive opinion from an advisory commission established under the EU Arbitration Convention concerning the taxation of its Walney Extension and Hornsea 1 projects. The commission confirmed that, in accordance with the legal framework applied by Ørsted, the two projects are principally taxable in the United Kingdom, where they are located, for the duration of their operation. The ruling is consistent with Ørsted’s interpretation of international tax rules for the offshore wind sector and is expected to reduce the likelihood of double taxation for the company’s UK‑based assets.

Background of the Dispute

The dispute originated in 2015, when Ørsted sought clarification from the Danish Tax Agency and the United Kingdom’s HM Revenue & Customs (HMRC) on how tax rights should be allocated for its offshore wind farms. Both authorities were unable to reach a consensus, prompting Ørsted to refer the matter to the EU advisory commission in 2023.

The final view of the commission includes a modest upward adjustment to Ørsted’s Danish tax position. This change has already been provisioned for within the company’s existing uncertain tax position allowances. Over time, the tax impact in Denmark is expected to be largely offset by corresponding reductions in the UK, thereby neutralising the overall fiscal burden across the two jurisdictions.

Implications for Ørsted’s Global Tax Strategy

Ørsted’s statement following the ruling emphasised that the outcome aligns with its expectations and supports its broader strategy of operating a globally integrated offshore wind portfolio that complies with applicable tax regimes. The company plans to:

  • Engage Danish Authorities – Ørsted intends to collaborate with the Danish Tax Agency to resolve similar tax issues for other projects where administrative assessments have been issued.
  • Consult UK Tax Authorities – The company will discuss the application of the commission’s opinion with UK tax authorities to ensure consistent implementation and to pre‑empt any future disputes.

By clarifying tax treatment in the UK, Ørsted is expected to enhance the predictability of its cash flows and reduce exposure to double taxation—an outcome that could improve its attractiveness to investors and lenders.

Broader Context in the Energy Transition

The ruling is significant for the offshore wind sector, which is rapidly expanding as part of the European Union’s Green Deal and the United Kingdom’s commitment to net‑zero emissions. As offshore wind developers increasingly operate across borders, clear and consistent tax frameworks are essential to sustain investment flows.

Ørsted’s experience demonstrates the importance of proactive engagement with multiple tax authorities and the utility of independent arbitration mechanisms in resolving jurisdictional ambiguities. The company’s approach—combining rigorous legal analysis with strategic stakeholder dialogue—offers a model for other firms navigating complex tax landscapes in the renewable energy transition.

The information presented here is based on publicly available statements from Ørsted A/S and related regulatory bodies. No additional commentary from the author is provided.