Nordseecluster B
Second phase of Nordseecluster. Amazon signed 110 MW PPA February 2026. Uses same transition piece-less design as Phase A.
Status
Advanced Developmentlifecycle stage
DeliveringHafrok completion outlook
Ownership
RWE — 51% ◆
Location
GermanyNorth Sea
Technology
Capacity
900 MW ◆
Turbines
60 × 15 MW ◆
Model
Vestas V236 15-0 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
BNetzA Offshore Wind Auction 2023 (central model, qualitative) · 2023 ·
Water depth
27–34 m ≈
Distance from shore
50 km ◆
Wind speed
10.3 m/s @ 150 m ≈
Revenue & grid
Offtake
PPA ◆
Grid
Secured · 2023-08-10 ◆
Connection
Grid connection right secured via BNetzA central-model auction … ◆
Schedule
FID
27 May 2024 ◆
COD · announced
2029 ◆
COD · Hafrok
2029 expected
Delivery outlook modelled by Hafrok · calibrated on delivered projects
2029
expected year of commercial operation
Chance of delivery
≈94%
estimated chance this project reaches commercial operation
Financed projects (investment decision taken) complete ≈92% of the time on Hafrok's record. A secured offtake contract lifts this one above that; its size and technical complexity pull the other way.
COD outlook
If it completes, when — Hafrok’s probability by year (teal) · the developer’s COD guidance, by date stated (ink)
| Year | Probability |
|---|---|
| 2029 (expected) | 91.5% |
| 2030 | 8.5% |
| Stated | Announced COD |
|---|---|
| 2026-06-11 | 2029 (held since 2023-05-25, 4 statements) |
How Hafrok got this date
1
Starting point: the last dated milestone
Final investment decision in
2024. From there Hafrok adds how long similar projects (in established offshore-wind markets) took to reach commercial operation, measured on projects that have delivered.2
Typical timing
Starting point plus the typical remaining time gives a middle estimate of
2027; the faster quarter of similar projects would be done by 2027, the slower quarter not until 2028.3
Result
Expected commercial operation
2029, likely range 2027–2028 (the middle half of outcomes for similar projects). The developer's announced date falls inside that likely range, so the announced date is adopted.4
Year-by-year chart
The bars spread that estimate across years using how similar projects actually slipped against their dates — more often late than early, which is why the bars lean right.
5
Chance of delivery — separate from timing
Start from the share of Advanced Development (FID) projects that went on to complete — ≈92%, measured on Hafrok's record of delivered and abandoned projects, with an allowance held back where that record cannot yet speak (projects still unresolved, changed market conditions). Financed projects have essentially always gone on to operate, but few have resolved since taking their investment decision — the estimate holds just below the construction-stage level rather than claiming certainty from a thin record. Then adjust for this project's own evidence — offtake, market, size, technical complexity — to ≈94%, which rates it
Delivering on Hafrok's four-step delivery scale (Delivering · Expected · Prospective · Fragile).Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2023-08
BNetzA Offshore Wind Auction 2023 (central model, qualitative)
- Awarded to
- Nordseecluster B GmbH (RWE)
- Basis
- integrated tender
From the auction results — the round that created the project.
Farmdown · 2025-03
RWE → NBIM 49%
- Stake
- 49%
- Consideration
- not disclosed
- Announced
- 2025-03
- Closed
- 2025-06
- Project stage
- under construction
RWE sold 49% of Nordseecluster (combined A+B, 1560 MW) to NBIM as part of a bundled EUR 1.4bn deal that also included 49% of Thor (Denmark, 1000 MW). No per-project value allocation disclosed. This record covers Nordseecluster B (900 MW). See companion records for Nordseecluster A and Thor. RWE retains 51% and operatorship. Combined blended EUR/MW for Thor + Nordseecluster: ~EUR 1,116k/MW (below UC range, reflecting zero-subsidy models and construction risk). Nordseecluster A+B are zero-subsidy German auction projects. Announced 31 March 2025; closed June 2025. EUR 1.4bn for 49% of Nordseecluster A+B AND Thor combined, as of closing, covering 49% of investment costs incurred pre-transfer only.
Evidence
- RWE AG — RWE and Norges Bank Investment Management join forces for Nordseecluster and Thor offshore wind projects ↗ 2025-03-31 ◆ held
- offshoreWIND.biz — Norwegian Sovereign Fund Completes EUR 1.4 Billion Thor, Nordseecluster Buy-In ↗ 2025-03 ◆ held
From Hafrok’s transactions record
Dashed tick marks today (9 Sep 2026). The ▲ below the spine is the developer-announced COD. The teal diamond on the spine is origination — the seabed award or round that created the project. Every other ownership event lives in the band below: one station per recorded deal, dated at its label, in deal order rather than to calendar scale. Secondary trades appear only at the interchanges; grey lines are parties whose entry or exit Hafrok’s record does not hold.
Announced COD: held (announced 2029, unchanged) · the full guidance history is in the delivery chart above
Installation how the build is going · from satellite counts and Hafrok’s registers
Installation not started
nothing to count yet: the satellite tracker begins when offshore construction does
Installation · on record
StageAdvanced Development
Offshore constructionnot started
Expected start of operation2029
Construction ports
PortEemshaven ◆·assembly port · quay 5000 m · crane 50 t · draft 14 m
Sources & verification
16/19 fields verified · rests on 15 sources (14 primary) · ◆ 12 documents held
◆Verified≈Modelled◇Sourced∴Inferred⌁Convention○Unverified∅No source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator3
[6]
Bundesnetzagentur2023-08-10◆ Bundesnetzagentur - Presse - Ergebnisse …
“Den Zuschlag für die Flächen N-3.5 und N-3.6 erhielt die Nordseecluster B GmbH. Die Nordseecluster B GmbH ist zugleich die Inhaberin des Eintrittsrechts für beide Flächen. Mit dem Zuschlag erhalten di…”
supportsMechanismDetailStatusConnection point
[17]
Bundesnetzagentur — Marktstammdatenregister2026-08-23◆ Marktstammdatenregister (MaStR) offshore…
“Park row "NC 3": 28 units, 420.0 MW gross, statuses {'In Planung': 28}, operators ['Nordseecluster B GmbH ＆ Co. KG'], commissioned None..None, planned 2028-06-01..2028-06-01. Park row "NC 4": 31 units…”
supportsRegister entry
[18]
Bundesamt für Seeschifffahrt und Hydrographie (BSH) — GeoSeaPortal, CONTIS Facilities2026-09-09
“featureid 405063, status Planned, no name, 23.6 km², centroid 54.0245 N 6.8520 E; featureid 405073, status Planned, no name, 31.4 km², centroid 54.0464 N 6.7716 E. Union bounds 53.985–54.092 N, 6.747–…”
supportsCoordinates
Operator7
[1]
RWE2026-06-12◆ Nordseecluster – The Power of Scale | RW…
“Nordseecluster B with additional 900 megawatts to follow from 2029. RWE (51%) and Norges Bank Investment Management (49%). Approximately 50 km north of the island of Juist.”
supportsTotal capacityFoundationDistance from shore
[2]
RWE Offshore Wind GmbH2024-05-27◆ Investment decision made: RWE to build w…
“RWE has made the investment decision for its Nordseecluster, involving offshore wind projects with a total capacity of 1.6 gigawatts (GW). The 60 turbines are scheduled to start commercial operation f…”
supportsFinal investment decisionCommercial operation
[5]
RWE Offshore Wind GmbH2026-03-27◆ Nordseecluster B: RWE receives approvals…
“The German Federal Maritime and Hydrographic Agency (BSH) has granted planning permission for RWE's Nordseecluster B (NC 3 and NC 4 sites). RWE owns Nordseecluster together with Norges Bank Investment…”
supportsConsentConsent granted
[7]
RWE Supply and Trading2026-02-03◆ RWE and Amazon sign Power Purchase Agree…
“Amazon and RWE have signed a Power Purchase Agreement (PPA) for 110 megawatts (MW) from RWE's Nordseecluster B offshore wind farm in the German North Sea. The wind farm is a joint project between RWE …”
supportsMechanismDetail
[9]
RWE Offshore Wind GmbH2025-03-14◆ Nordseecluster: First foundations for Ge…
“RWE is taking an important step towards building the Nordseecluster offshore wind project in the German North Sea. The first eight foundations have arrived and been offloaded in the Dutch base port Ee…”
supportsassembly port
[12]
RWE2025-06-04◆ Rwe and nbim jointly realise offshore wi…
“NBIM now holds a 49% equity stake in both the Nordseecluster and Thor offshore wind projects. RWE, with a 51% stake, remains in charge of construction and operations throughout the lifecycle of these …”
supportsoperatorinvestor
[16]
RWE Offshore Wind GmbH2026-06-11◆ First turbine up at Nordseecluster A off…
“Nordseecluster B to add further 900 megawatts of capacity from early 2029 ... Nordseecluster B is scheduled to commence commercial operations in early 2029.”
supportsCommercial operationCOD history
OEM1
[8]
Vestas2024-11-28◆ Vestas secures 900 MW order for the Nord…
“Vestas has received a firm order for RWE's 900 MW Nordseecluster B offshore wind project in Germany.”
supportsTurbinesModelUnit capacity
Record source2
[19]
RWE2023-04-26◆ rwe-van-oord-award-2023-04
Van Oord's offshore installation vessel Boreas will be deployed to transport and install the foundations for both construction phases of the Nordseecluster... The foundation installation works for Nor…
supportsBoreas — foundation installation
[20]
RWE2026◆ rwe-nordseecluster-project-page-2026
DEME will transport and support the installation of the turbines... Turbine installation works for Nordseecluster B are scheduled to begin in 2028 with commercial operation to start at the beginning o…
supportsVessel — turbine installation
Trade press2
[13]
[14]