---
title: "TetraSpar Demonstrator"
source: https://hafrok.com/projects/no-tetraspar-demonstrator/
identifier: no-tetraspar-demonstrator
updated: 2026-10-13
---

# TetraSpar Demonstrator

Source: https://hafrok.com/projects/no-tetraspar-demonstrator/  
Data as of: 2026-10-13

Floating-foundation demonstrator at METCentre, Karmoy.

| Field | Value |
|---|---|
| Country | Norway |
| Sea basin | North Sea |
| Capacity | 3.6 MW |
| Turbines | 1 |
| Lifecycle stage | Operational |
| Owners | TEPCO Renewable Power · RWE · Stiesdal Offshore |
| Coordinates | 59.28, 4.8601 |
| Commercial operation (announced) | 2021 |

## Milestones

- **Final investment decision** — 2019-02-13 (achieved)
- **Consent applied** — 2020-10-01 (achieved)
- **First power** — 2021 (achieved)
- **Commercial operation** — 2021 (achieved)
- **Offshore construction** — 2021-06 (achieved)
- **Consent granted** — 2021-06-03 (achieved)

## Offtake

Offtake regime not on record


## Sources

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

- offshoreWIND.biz, 2021 — https://www.offshorewind.biz
- offshoreWIND.biz, 2021 — https://www.offshorewind.biz/2021/07/30/tetraspar-floating-wind-platform-installed-offshore-norway/
- METCentre, 2026 — https://metcentre.no/test-sites/karmoy-test-centre
- offshoreWIND.biz, 2026-03-27 — https://www.offshorewind.biz/2026/03/27/global-maritime-to-decommission-tetraspar-floater-offshore-norway/
- offshoreWIND.biz, 2021-02-04 — https://www.offshorewind.biz/2021/02/04/tepco-rp-buys-into-tetraspar-floater-demo-project/
- DTU Wind Energy / World Bank (Global Wind Atlas), 2026 — https://globalwindatlas.info/
- Stiesdal Offshore, 2026-03-27 — https://stiesdaloffshore.com/news/tetraspar-demonstrator-to-be-decommissioned-after-five-years-of-successful-operation/
- offshoreWIND.biz, 2026-09-08 — https://offshorewind.biz/2026/09/08/tetraspar-floater-completes-five-year-testing-campaign-offshore-norway
- innogy SE / Shell / Stiesdal Offshore Technologies (joint press release, hosted by Stiesdal), 2019-02-13 — https://www.stiesdal.com/wp-content/uploads/2021/03/19-02-13-PR-Shell-innogy-and-SOT-to-build-new-floating-wind-demonstration-project.pdf
- TetraSpar Demonstrator partners Shell, TEPCO RP, RWE, Stiesdal (joint press statement, hosted by Stiesdal), 2021-12-01 — https://www.stiesdal.com/wp-content/uploads/2021/12/Joint-Press-Statement-TetraSpar-Demonstrator-commissioned-Media-Release-01-Dec-2021.pdf
- Bourbon (installation contractor), 2021-08-27 — https://www.bourbonoffshore.com/en/press-releases/bourbon-subsea-services-successfully-installed-innovative-tetraspar-demonstrator
- Energidepartementet (Norwegian Ministry of Energy), via NVE case 201101285, 2026-01-20 — https://webfileservice.nve.no/API/PublishedFiles/Download/8eec5a3f-2b4a-4b30-bc40-2de29f5d45ae/201101285/3449420
- Norges vassdrags- og energidirektorat (NVE), case 201101285, 2022-09-20 — https://webfileservice.nve.no/API/PublishedFiles/Download/6d56bac1-8b6b-4cd1-be65-ce5823ce2463/201101285/3429143

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Hafrok · https://hafrok.com/projects/no-tetraspar-demonstrator/ · please cite the page you took a figure from.