---
title: "Hornsea One"
source: https://hafrok.com/projects/uk-hornsea-one/
identifier: uk-hornsea-one
updated: 2026-10-13
---

# Hornsea One

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

Located 120km off Yorkshire coast. O&M from East Coast Hub, Grimsby.

| Field | Value |
|---|---|
| Country | United Kingdom |
| Sea basin | North Sea |
| Capacity | 1218 MW |
| Turbines | 174 |
| Lifecycle stage | Operational |
| Owners | Ørsted · Equitix · Brookfield · Greencoat UK Wind · TRIG · GLIL Infrastructure · Octopus Energy Generation · Schroders Greencoat |
| Coordinates | 53.9, 1.79 |
| Commercial operation (announced) | 2019-12 |

## Milestones

- **Consent applied** — 2013-07-30 (achieved)
- **Consent granted** — 2014-12-10 (achieved)
- **Final investment decision** — 2016 (achieved)
- **Onshore construction** — 2016 (achieved)
- **Offshore construction** — 2018-01 (achieved)
- **Commercial operation** — 2019-12 (achieved)
- **First power** — 2019-Q1 (achieved)

## Offtake

1,200 MW contracted — investment contract

- **Investment contract · FID Enabling for Renewables (FIDeR) investment contracts** — £140/MWh · 2012 real · CPI-indexed · awarded 2014-04 · 15-year term

## Sources

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

- Planning Inspectorate / DECC (UK Government), 2014-12-10 — https://www.gov.uk/government/publications/hornsea-one-offshore-wind-farm-variation-request
- DECC (UK Government), 2014-04-23 — https://www.gov.uk/government/news/government-unveils-eight-major-new-renewables-projects-supporting-8500-green-jobs
- Ørsted (via GlobeNewswire), 2018-09-18 — https://www.globenewswire.com/news-release/2018/09/18/1572748/0/en/%C3%98rsted-divests-50-of-Hornsea-1-Offshore-Wind-Farm.html
- Ørsted, 2019-02-22 — https://orsted.com/en/media/news/2019/02/the-worlds-biggest-offshore-wind-farm-hornsea-one-generates-first-power
- Ørsted, 2019-06-01 — https://orsted.com/en/offshore-wind/our-offshore-wind-farms
- Tethys (Pacific Northwest National Laboratory), date not stated — https://tethys.pnnl.gov/wind-project-sites/hornsea-1-wind-farm
- Power Technology, date not stated — https://www.power-technology.com/projects/hornsea-project-one-north-sea/
- Ørsted / Brookfield, 2024-10-30 — https://www.globenewswire.com/news-release/2024/10/30/2971539/0/en/Brookfield-Acquires-Share-of-Four-UK-Offshore-Wind-Farms-from-%C3%98rsted.html
- National Audit Office, 2014-06 — https://www.nao.org.uk/wp-content/uploads/2014/06/Early-contracts-for-renewable-electricity1.pdf
- offshoreWIND.biz, 2016-11-03 — https://www.offshorewind.biz/2016/11/03/murphy-starts-installing-hornsea-project-one-onshore-cables/
- offshoreWIND.biz, 2018-01-26 — https://www.offshorewind.biz/2018/01/26/first-monopile-installed-at-hornsea-project-one-site/
- offshoreWIND.biz, 2020-01-30 — https://www.offshorewind.biz/2020/01/30/worlds-largest-offshore-wind-farm-fully-up-and-running/
- DTU Wind Energy / World Bank (Global Wind Atlas), 2026 — https://globalwindatlas.info/
- The Maritime Executive, 2016-02-03 — https://maritime-executive.com/article/dong-makes-fid-on-largest-offshore-wind-farm
- Ørsted A/S, 2018-09-18 — https://orsted.com/en/company-announcement-list/2018/09/1809936
- 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
- Equitix, 2024-07-01 — https://equitix.com/portfolio/hornsea-one/
- TRIG (The Renewables Infrastructure Group), 2022-03-18 — https://www.trig-ltd.com/news-media/news/trig-acquires-stake-in-worlds-largest-operational-offshore-wind-farm/
- TRIG (The Renewables Infrastructure Group), 2022-08-09 — https://www.trig-ltd.com/news-media/news/trig-increases-investment-in-hornsea-one/
- Octopus Energy, 2022-08-03 — https://octopus.energy/press/octopus-energy-and-nest-form-joint-venture-with-glil-to-invest-400m-in-worlds-largest-offshore-wind-farm/
- Greencoat UK Wind plc (RNS via Investegate), 2025-07-30 — https://www.investegate.co.uk/announcement/rns/greencoat-uk-wind--ukw/sell-down-of-interests-in-three-wind-farms/9011563
- Greencoat UK Wind plc (RNS via Investegate), 2026-02-26 — https://www.investegate.co.uk/announcement/rns/greencoat-uk-wind--ukw/final-results-announcement/9447657
- Daiwa Energy & Infrastructure, 2023-03-20 — https://daiwa-ei.jp/en/portfolio/energy/sub/p154/
- Companies House, 2022 — https://find-and-update.company-information.service.gov.uk/company/07640868/filing-history/MzM0MjYxMzY0MGFkaXF6a2N4/document?format=pdf
- Companies House, 2020 — https://find-and-update.company-information.service.gov.uk/company/07640868/filing-history/MzI4MjM2MjkxNmFkaXF6a2N4/document?format=pdf
- Companies House, 2019 — https://find-and-update.company-information.service.gov.uk/company/07640868/filing-history/MzIzNDU3NzQzNGFkaXF6a2N4/document?format=pdf
- The Planning Inspectorate (PINS), 2026-08-23 — https://national-infrastructure-consenting.planninginspectorate.gov.uk/api/applications-download
- Low Carbon Contracts Company (LCCC), 2026-07-31 — https://dp.lowcarboncontracts.uk/dataset/754ae1ec-3539-4bdf-86f5-ba204a56be76/resource/7bdfb0cb-fe99-44eb-b07b-2047e82f5601/download/cfd_contract_portfolio_status.csv

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