---
title: "Westermost Rough"
source: https://hafrok.com/projects/uk-westermost-rough/
identifier: uk-westermost-rough
updated: 2026-10-13
---

# Westermost Rough

Source: https://hafrok.com/projects/uk-westermost-rough/  
Data as of: 2026-10-13

Located 8km NE of Withernsea off Holderness coast, Yorkshire. Pioneered Siemens 6MW offshore turbine.

| Field | Value |
|---|---|
| Country | United Kingdom |
| Sea basin | North Sea |
| Capacity | 210 MW |
| Turbines | 35 |
| Lifecycle stage | Operational |
| Owners | Ørsted · Arjun Infrastructure Partners · Equitix · Universities Superannuation Scheme · StepStone Group |
| Coordinates | 53.81, 0.15 |
| Commercial operation (announced) | 2015-07 |

## Milestones

- **Consent granted** — 2011-11 (achieved)
- **Final investment decision** — 2013-01 (achieved)
- **Onshore construction** — 2013-04 (achieved)
- **Offshore construction** — 2014-02 (achieved)
- **First power** — 2014-09 (achieved)
- **Commercial operation** — 2015-07 (achieved)

## Offtake

Offtake regime: ROC 2.0 ROCs/MWh (subsidy expiry 2035)


## Sources

Every figure above traces to one of these. Quoted passages are held but not republished; follow the link for the original wording.

- Ørsted A/S (then DONG Energy), 2014-08-14 — https://orsted.com/en/media/news/2014/08/first-6mw-turbine-erected-at-dong-energys-westermost-rough-offshore-wind-farm
- Ørsted A/S (then DONG Energy), 2014-09-08 — https://orsted.com/en/media/news/2014/09/first-power-at-dong-energys-westermost-rough
- Ørsted A/S (then DONG Energy), 2015-03-30 — https://orsted.com/en/media/news/2015/03/final-6mw-turbine-installed-at-westermost-rough-offshore-wind-farm
- Ørsted A/S (then DONG Energy), 2015-05-26 — https://orsted.com/en/media/news/2015/05/full-power-at-westermost-rough-offshore-wind-farm
- Ørsted A/S (then DONG Energy), 2015-07-01 — https://orsted.com/en/media/news/2015/07/ground-breaking-westermost-rough-offshore-wind-farm-is-declared-open
- Ørsted A/S (then DONG Energy), 2015-09-16 — https://orsted.com/en/media/news/2015/09/operations-base-at-westermost-rough-up-for-national-building-award
- Ørsted A/S (then DONG Energy), 2017-03-21 — https://orsted.com/en/media/news/2017/03/good-energy-sources-wind-power-from-dong-energys-westermost-rough
- Ørsted A/S, 2021-02 — https://orsted.com/en/investors/financial-reports
- Ørsted A/S (then DONG Energy) via GlobeNewswire, 2013-01-30 — https://www.globenewswire.com/news-release/2013/01/30/519586/0/en/DONG-Energy-to-build-Westermost-Rough-offshore-wind-farm.html
- Ørsted A/S (then DONG Energy) via GlobeNewswire, 2014-03-31 — https://www.globenewswire.com/news-release/2014/03/31/622627/0/en/Marubeni-Corporation-and-UK-Green-Investment-Bank-to-become-co-owners-of-DONG-Energy-s-Westermost-Rough-offshore-wind-farm.html
- World of Renewables (reporting Crown Estate / DECC announcement), 2011-12-01 — https://worldofrenewables.com/westermost_rough_consent_sustains_uk_offshore_wind_momentum/
- Offshore Wind Biz, 2018-03-27 — https://www.offshorewind.biz/2018/03/27/green-investment-group-buys-marubeni-out-of-westermost-rough/
- Macquarie Asset Management, 2023-04-24 — https://www.macquarie.com/us/en/about/news/2023/macquarie-asset-management-to-divest-stakes-in-eight-uk-offshore-wind-farms.html
- Power Technology (GlobalData), 2024-10-14 — https://www.power-technology.com/data-insights/power-plant-profile-westermost-rough-uk/
- Transmission Investment, date not stated — https://tinv.com/ofto-projects/westermost-rough/
- Power Technology, 2025 — https://www.power-technology.com/data-insights/power-plant-profile-westermost-rough-uk/
- Power Technology (GlobalData), 2015-07-23 — https://www.power-technology.com/projects/westermost-rough-offshore-wind-farm-yorkshire/
- DTU Wind Energy / World Bank (Global Wind Atlas), 2026 — https://globalwindatlas.info/
- Department for Energy Security and Net Zero, 2026-05-06 — https://assets.publishing.service.gov.uk/media/69fc56908cc72d2f863ea58d/REPD_publication_Q1_2026.csv
- National Energy System Operator (NESO), 2026-07-21 — https://api.neso.energy/dataset/cbd45e54-e6e2-4a38-99f1-8de6fd96d7c1/resource/17becbab-e3e8-473f-b303-3806f43a6a10/download/tec-register-21-july-2026.csv
- Ørsted, 2025-Q2 — https://cdn.orsted.com/-/media/q22025/orsted-factsheet-asset-book-q2-2025.xlsx
- Companies House, 2016-05-31 — https://find-and-update.company-information.service.gov.uk/company/06232914/filing-history/MzE0OTQ3ODMzNmFkaXF6a2N4/document?format=pdf&download=0

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Hafrok · https://hafrok.com/projects/uk-westermost-rough/ · please cite the page you took a figure from.