🌊 Offshore wind farm

Hornsea 1 - Heron & Njord
Offshore

Recorded in WhichWindTurbine: 174 wind turbines in operation. Point the app at one of them to see its profile in real time.

174
turbines
1218 MW
MW total
7 MW
per turbine

📍 174 turbines mapped — each dot is a turbine recorded in the database. Average position: 53.88302 N · 1.91922 E.

Hornsea 1 - Heron & Njord

174 turbines · operational · Offshore

Wind farm facts

StatusOperational
County / regionOffshore
Turbines174
Installed capacity1218 MW
Turbine capacity7 MW
Tip heightnot recorded
Operator (or applicant)Orsted (formerly Dong Energy)
Turbine manufacturerSiemens Gamesa
Turbine modelSWT-7.0-154
Open this wind farm in WhichWindTurbine Interactive map + augmented-reality identification on site

✓ Verified reference — turbine make and model

Siemens Gamesa · SWT-7.0-154 · 174 turbines · 7 MW each · hub 190 m · rotor 154 m

Source: Tethys (PNNL, U.S. DOE), 2025-05-09, read on 2026-09-13. Corroborated by 2 further sources. Where OpenStreetMap tags differ, this record prevails.

✓ Independently confirmed on 2026-09-19 by Wikipedia, list of offshore wind farms worldwide: 174 Siemens Gamesa SWT-7.0-154, 1,218 MW, 2019.

♻️ Project timeline

Dated milestones from the UK Renewable Energy Planning Database (REPD), Q2 2026 — not estimates.

→ ~2042201520202025today1234
  1. 1Jul 2013 — Application submitted
  2. 2Dec 2014 — Permission granted
  3. 3Jan 2018 — Under construction
  4. 4Dec 2019 — Operational

DevelopmentConstructionOperationAhead (repowering horizon at 22 years)

From application to operation, this scheme took about 6 years.

Source: Renewable Energy Planning Database, Department for Energy Security and Net Zero, Open Government Licence v3.0. REPD ref 2525.

What the register tells us

The application was determined in about 17 months. Construction to first power took about 23 months. The scheme has been operating for about 7 years. That works out at 7 MW per turbine on average.

Nearby

See all wind farms in Offshore.

Sources and dates

DataSourceExtract
Site, capacity, status, planning milestonesRenewable Energy Planning Database (DESNZ, Open Government Licence v3)Q2 2026, published 03/08/2026
Turbine positionsOpenStreetMap contributors (ODbL)19/08/2026
Manufacturer and modelOpenStreetMap tags, unverified — REPD does not record turbine models. Known for 41 % of UK turbines (manufacturer) and 32 % (model); some values are propagated within a site and may be wrong.19/08/2026

Public data may lag behind operator figures. Spotted an error? Suggest a correction from the app.