The North Sea, live

Projects list.

The headline projects from the map as plain text: who builds it, the phase, what is next and where we read it. A field we could not source says “not published”.

Running now

Under construction or ramping up.

Under construction
Hollandse Kust (West) wind farm zone
What’s next Ecowende (Site VI) started production 6 July 2026, full commissioning targeted end of 2026; OranjeWind (Site VII) began offshore monopile installation September 2026, full commissioning expected early 2028.
Kind
Offshore wind farm
Developer / operator
Ecowende (Shell + Eneco + Chubu JV, Site VI, 760MW); OranjeWind (RWE + TotalEnergies JV, Site VII, 795MW)
Contractors
not published
Capacity
1,555 MW
Position on the map: zone centroid approximate.
Source: enerdata.net · retrieved 2026-09-19 · Public information, fact reported with source
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Under construction
TenneT 2GW offshore grid programme
What’s next Multiple 2GW/525kV platforms planned in NL and Germany through the early 2030s; IJmuiden Ver Beta jacket under construction at Vlissingen (targeting 2028 commissioning), IJmuiden Ver Gamma jacket construction (first steel cut) started (targeting 2029), Nederwiek 1 (2030) and Nederwiek 2 (2031) platforms in earlier stages.
Kind
Offshore grid programme
Developer / operator
TenneT
Contractors
GE Vernova-Seatrium consortium (converter stations); Heerema Fabrication Group Vlissingen (jackets for Beta/Gamma/Nederwiek 2); Heerema Marine Contractors and Allseas (transport & installation, ~28 lots to 2031)
Capacity
not published
Position on the map: zone centroid approximate.
Source: tennet.eu · retrieved 2026-09-19 · Public information, fact reported with source
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Under construction
Porthos CO2 transport & storage
What’s next Under construction since compressor-station work began late 2024; offshore work and first infrastructure building targeted March 2026, pipe golden-weld connection targeted June 2026; system expected operational in the second half of 2027.
Kind
CO₂ transport & storage
Developer / operator
Port of Rotterdam Authority, EBN, Gasunie
Contractors
not published
Capacity
not published
Position on the map: approximate area.
Source: porthosco2.nl · retrieved 2026-09-19 · Public information, fact reported with source
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Under construction
Holland Hydrogen 1
What’s next 200MW electrolyser plant near completion; commissioning expected to start late 2026 with production ramp-up in 2027 (temporary grid connection in use until the new substation is complete).
Kind
Hydrogen plant
Developer / operator
Shell
Contractors
not published
Capacity
200 MW
Position on the map: approximate area.
Source: enr.com · retrieved 2026-09-19 · Public information, fact reported with source
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Under construction
SkyNRG DSL-01 sustainable aviation fuel plant
What’s next Financial close February 2026; construction groundbreaking 28 May 2026; targeting 100,000 t/year SAF from 2028 - Europe's first standalone greenfield SAF plant.
Kind
Sustainable fuels plant
Developer / operator
SkyNRG
Contractors
Technip Energies (EPC)
Capacity
not published
Position on the map: approximate area.
Source: skynrg.com · retrieved 2026-09-19 · Public information, fact reported with source
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Under construction
Heerema Vlissingen - 2GW jacket fabrication
What’s next Fabricating jackets for IJmuiden Ver Beta, IJmuiden Ver Gamma and Nederwiek 2 under the GE Vernova-Seatrium consortium contract; Beta jacket construction under way (started Sept 2024); Gamma jacket construction started with ceremonial first steel cut, sail-out targeted summer 2028; each jacket ~10,000 tonnes, ~100m x 55m x 46m.
Kind
Fabrication
Developer / operator
TenneT (client); GE Vernova-Seatrium consortium (contract holder)
Contractors
Heerema Fabrication Group
Capacity
not published
Position on the map: yard location.
Source: renews.biz · retrieved 2026-09-19 · Public information, fact reported with source
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Coming

Planned, permitted or in tender.

Planned
IJmuiden Ver Alpha & Beta wind farms
What’s next Development permits awarded 2024. Alpha (Noordzeker) commissioning targeted 2029. Beta (Zeevonk II) permit amended August 2025 to a two-phase build - first 1GW phase targeted 2029, second 1GW phase targeted 2032; TenneT's Beta grid platform jacket construction (first steel) began September 2025, sail-out from Vlissingen targeted summer 2027.
Kind
Offshore wind farm
Developer / operator
Noordzeker (SSE Renewables, ABP, AGP) - Alpha; Zeevonk II (Copenhagen Infrastructure Partners, Vattenfall) - Beta
Contractors
not published
Capacity
4,000 MW
Position on the map: zone centroid approximate.
Source: english.rvo.nl · retrieved 2026-09-19 · Public information, fact reported with source
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In tender
IJmuiden Ver Gamma-A / Gamma-B wind farm sites
What’s next Capacity is about 1 GW per site (RVO does not state a combined MW figure for the two sites together). Permit application window for Gamma-A and Gamma-B (Gamma-B added with subsidy in April 2026) now set for 26 November-10 December 2026; RVO expects to announce winners in Q1 2027 - no tender winner yet as of this dataset's retrieval date. Subsidy ceilings were raised in June 2026 to a maximum of EUR 0.117/kWh (Gamma-A) and EUR 0.116/kWh (Gamma-B). See also the RVO Gamma-B permit page: https://english.rvo.nl/subsidies-financing/offshore-wind-energy/permit-ijmuiden-ver-gamma-b
Kind
Offshore wind farm
Developer
not published
Operator
not published
Contractors
not published
Capacity
not published
Position on the map: zone centroid approximate.
Source: english.rvo.nl · retrieved 2026-09-20 · Public information, fact reported with source
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Planned
Nederwiek wind farm zone
What’s next The Nederwiek I-A wind farm tender (1GW, unsubsidised) closed 30 October 2025 with zero bids. No re-tender of Nederwiek I-A has taken place: the subsidised 2 GW round the government prepared for 2026 (EUR 948.3m was allocated from the Climate Fund for 2026 offshore wind tenders generally, per the 16 September 2025 Offshore Wind Energy Action Plan) went instead to IJmuiden Ver Gamma-A and Gamma-B, whose application window is 26 November-10 December 2026. RVO's January 2026 Development Framework lists Nederwiek I-A's site status without a tender date (commissioning still shown as Q4 2030); Nederwiek sites I-B, II and III show 'Q2-Q4 2026' for their tenders. No Nederwiek wind farm developer has been selected yet. TenneT's Nederwiek 1 and 2 grid platforms (separate from the wind farm tender) are targeted for 2030 and 2031 commissioning respectively.
Kind
Offshore wind farm
Developer
not published
Operator
not published
Contractors
not published
Capacity
not published
Position on the map: zone centroid approximate.
Source: english.rvo.nl · retrieved 2026-09-20 · Public information, fact reported with source
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Planned
Aramis CO2 transport & storage
What’s next Dutch government committed EUR 726m after Shell and TotalEnergies scaled back their planned funding; final investment decision by Gasunie/EBN expected in 2026; storage (22 Mt/year capacity) targeted operational by 2030. Designed to complement Porthos, using Porthos's onshore compressor station.
Kind
CO₂ transport & storage
Developer / operator
Gasunie, EBN (Shell and TotalEnergies remain involved until FID, then focus on the CO2 storage side)
Contractors
not published
Capacity
not published
Position on the map: approximate area.
Source: gasunie.nl · retrieved 2026-09-19 · Public information, fact reported with source
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Planned
Damen ASW frigates (NL/BE)
What’s next Severely delayed: design phase still running, first steel not yet cut; Naval News (Jul 2026) reports first (Dutch) delivery has slipped from 2028 to about 2033, Belgian vessel to about 2034, with programme cost more than doubled. Belgium is reviewing alternative builders (RFI to France, Germany, Italy, Spain, Turkiye) after Germany cancelled its own Damen-led F126 frigate order in June 2026; Belgian minister Francken says a decision on staying in the joint programme is due October 2026.
Kind
Naval shipbuilding
Developer / operator
Netherlands Ministry of Defence / Belgian Ministry of Defence
Contractors
Damen Naval (hulls to be fabricated at Damen Galati, Romania; outfitting and weapon-system integration planned for Vlissingen) - no steel-cutting confirmed as of this dataset's retrieval date
Capacity
not published
Position on the map: yard location.
Source: navalnews.com · retrieved 2026-09-19 · Public information, fact reported with source
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Operating

Built and in service.

Operational
Hollandse Kust (Zuid) wind farm
What’s next Fully operational since 2024; first Dutch offshore wind farm built without subsidy.
Kind
Offshore wind farm
Developer / operator
Vattenfall (with BASF, Allianz)
Contractors
not published
Capacity
1,500 MW
Position on the map: zone centroid approximate.
Source: group.vattenfall.com · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
Hollandse Kust (Noord) wind farm
What’s next Operational since December 2023; built subsidy-free.
Kind
Offshore wind farm
Developer / operator
CrossWind (Shell + Eneco joint venture)
Contractors
not published
Capacity
759 MW
Position on the map: zone centroid approximate.
Source: offshorewind.biz · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
Borssele I/II wind farm
What’s next Operational since 2020.
Kind
Offshore wind farm
Developer / operator
Ørsted
Contractors
not published
Capacity
752 MW
Position on the map: zone centroid approximate.
Source: orsted.com · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
Borssele III/IV wind farm
What’s next Fully operational since the beginning of 2021.
Kind
Offshore wind farm
Developer / operator
Blauwwind consortium (Partners Group, Shell, Eneco, Van Oord, DGE/Mitsubishi)
Contractors
not published
Capacity
731.5 MW
Position on the map: zone centroid approximate.
Source: eneco.nl · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
Gemini wind farm
What’s next Fully operational since 2017; Van Oord sold its 10% stake to the German ALTE LEIPZIGER-HALLESCHE insurance group in 2018.
Kind
Offshore wind farm
Developer / operator
Northland Power (60%), Siemens Project Ventures (20%), ALTE LEIPZIGER-HALLESCHE insurance group (10%, bought from Van Oord in 2018), HVC (10%)
Contractors
not published
Capacity
600 MW
Position on the map: zone centroid approximate.
Source: offshorewind.biz · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
Sif Maasvlakte 2 monopile mega-factory
What’s next Ramp-up completed: reached its planned output of 4-5 monopiles/week during H1 2026 and delivered 59 monopiles in Q2 2026, close to its ~60/quarter target; annual target ~200 monopiles once at full capacity.
Kind
Fabrication
Developer / operator
Sif Group
Contractors
not published
Capacity
not published
Position on the map: yard location.
Source: investing.com · retrieved 2026-09-19 · Public information, fact reported with source
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Operational
SBM Offshore FPSO backlog
What’s next Record pro-forma directional backlog of $35.6bn at end-June 2026 (up ~$4.5bn from year-end 2025, driven by FPSO SEAP I/II awards, Longtail FEED and N'Goma extension); 2026 directional revenue guidance raised to ~$7.6bn and EBITDA guidance to ~$1.9bn; engineering managed from the Schiedam site.
Kind
Fabrication
Developer / operator
SBM Offshore
Contractors
not published
Capacity
not published
Position on the map: yard location.
Source: investing.com · retrieved 2026-09-19 · Public information, fact reported with source
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TenneT offshore grid platforms

Positions are zone centroids, not surveyed platform positions.

Platform	Status	Technology	Capacity	Contractors	What’s next	Source
Hollandse Kust (noord) Alpha Project page	Operational	HVAC 700MW standard platform	700 MW	Equans / Smulders joint venture (EPCI)	In service since TenneT took over the platform 1 June 2023; feeds the 759MW Hollandse Kust (Noord) wind farm.	ecomagazine.com 2026-09-19
Hollandse Kust (zuid) Alpha Project page	Operational	HVAC 700MW standard platform	700 MW	Petrofac (EPCI, contract awarded July 2018)	In service as part of the 2x700MW Hollandse Kust (Zuid) connection.	offshorewind.biz 2026-09-19
Hollandse Kust (zuid) Beta Project page	Operational	HVAC 700MW standard platform	700 MW	Petrofac (EPCI, combined ~USD 200m contract with HKZ Alpha)	In service as part of the 2x700MW Hollandse Kust (Zuid) connection.	offshorewind.biz 2026-09-19
Hollandse Kust (west) Alpha Project page	Operational	HVAC 700MW standard platform	700 MW	Equans / Smulders joint venture (EPCI)	Topside installed September 2023, fully commissioned in 2024; artificial reef structures installed on the substructure in 2023 as part of TenneT's ecological monitoring programme.	offshorewind.biz 2026-09-19
Hollandse Kust (west) Beta Project page	Operational	HVAC 700MW standard platform	700 MW	Equans / Smulders joint venture (EPCI)	Received its grid-readiness certificate 28 October 2025, five months ahead of schedule, completing TenneT's seven-platform 700MW AC programme; awaits commissioning once the OranjeWind (Site VII) wind farm is ready, expected early 2028.	offshorewind.biz 2026-09-19
IJmuiden Ver Alpha Project page	Under construction	HVDC 525kV, 2GW programme	2,000 MW	Hitachi Energy / Larsen & Toubro (HVDC converter stations; L&T replaced Petrofac in the consortium, reported 31 Oct 2025)	Onshore land station under construction (first Dutch 2GW-standard substation); commissioning targeted for 2029 per TenneT's 2GW programme schedule.	splash247.com 2026-09-20
IJmuiden Ver Beta Project page	Under construction	HVDC 525kV, 2GW programme	2,000 MW	GE Vernova-Seatrium consortium; jacket fabrication by Heerema Fabrication Group, Vlissingen	Jacket construction under way at Heerema Vlissingen since first steel cut September 2025 (first 1,700-tonne section raised August 2026); jacket sail-out targeted summer 2027, offshore installation 2027, topside installation H2 2028; commissioning targeted 2028.	offshorewind.biz 2026-09-19
IJmuiden Ver Gamma Project page	Under construction	HVDC 525kV, 2GW programme	2,000 MW	GE Vernova-Seatrium consortium; jacket fabrication by Heerema Fabrication Group, Vlissingen	Jacket construction (ceremonial first steel cut, September 2026) under way at Heerema Vlissingen - the second of the three 2GW jackets built there; sail-out targeted summer 2028; commissioning targeted 2029.	renews.biz 2026-09-19
Nederwiek 1 Project page	Planned	HVDC 525kV, 2GW programme	2,000 MW	Hitachi Energy / Larsen & Toubro (HVDC converter stations; L&T replaced Petrofac in the consortium, reported 31 Oct 2025)	Cable systems (with Prysmian) and converter stations in early stages; commissioning targeted for 2030 per TenneT's 2GW programme schedule. Note: this grid platform is separate from the Nederwiek wind-farm-zone tender, whose first site (Nederwiek I-A) drew no bids in October 2025.	splash247.com 2026-09-20
Nederwiek 2 Project page	Planned	HVDC 525kV, 2GW programme	2,000 MW	GE Vernova-Seatrium consortium (converter stations); jacket fabrication contracted to Heerema Fabrication Group, Vlissingen (third of the three 2GW jackets there, after Beta and Gamma)	Jacket fabrication contracted to Heerema Vlissingen but not yet started as of this dataset's retrieval date; commissioning targeted 2031.	tdworld.com 2026-09-19
Doordewind 1 Project page	Planned	HVDC 525kV, 2GW programme	2,000 MW	Hitachi Energy / Larsen & Toubro (HVDC converter stations; L&T replaced Petrofac in the consortium, reported 31 Oct 2025)	To be connected at Eemshaven; the associated wind farm site is planned to be tendered around 2027, with grid commissioning reported at around 2032 (exact year varies slightly by source).	splash247.com 2026-09-20
Doordewind 2 Project page	Planned	HVDC 525kV, 2GW programme	2,000 MW	Hitachi Energy / Larsen & Toubro (HVDC converter stations; L&T replaced Petrofac in the consortium, reported 31 Oct 2025)	To be connected at Eemshaven; the associated wind farm site is planned to be tendered around 2027, with grid commissioning reported at around 2032 (exact year varies slightly by source).	splash247.com 2026-09-20

Yards & sites

Positions are approximate, derived from the postal address.

Site	Kind	What	What’s next	Source
Heerema Fabrication Group - Vlissingen Yard Project page	Fabrication yard	200,000 m² jacket/topside fabrication yard, 720m quayside. Building jackets for TenneT's 2GW programme (IJmuiden Ver Beta, IJmuiden Ver Gamma, Nederwiek 2) under a GE Vernova-Seatrium consortium contract.	IJmuiden Ver Gamma jacket construction (first steel cut) under way; Beta jacket taking shape; Nederwiek 2 jacket to follow.	heerema.com 2026-09-19
HSM Offshore Energy - Schiedam Yard Project page	Fabrication yard	Topside and jacket fabrication yard on the Nieuwe Maas; builds offshore substation and platform topsides for North Sea wind and gas projects (e.g. Zingst OSS topside for 50Hertz via the HSI joint venture).	not published	offshore-mag.com 2026-09-19
SBM Offshore - Schiedam Project page	Engineering site	SBM Offshore engineering site for FPSO design and project management; company reported a record $35.6bn directional backlog at end-June 2026 across its global FPSO fleet.	not published	investing.com 2026-09-19
Damen Naval - Vlissingen Project page	Shipyard	Naval shipyard contracted to build four Anti-Submarine Warfare frigates for the Dutch and Belgian navies (hulls planned to be fabricated at Damen Galati, Romania, then outfitted, weapon-system integration and commissioning in Vlissingen).	Programme severely delayed and in design phase, no steel cut yet; Naval News (Jul 2026) reports first delivery has slipped from 2028 to about 2033 (Belgium about 2034), cost more than doubled; Belgium reviewing alternative builders, decision due October 2026.	navalnews.com 2026-09-19
Sif Group - Maasvlakte 2 monopile factory Project page	Fabrication yard	Robotised monopile foundation production line (up to 11m diameter, 120m long, ~2,500 tonnes each); EUR 328m expansion opened 2025, ramping toward ~200 monopiles/year.	Ramp-up completed: reached its planned output of 4-5 monopiles/week during H1 2026 and delivered 59 monopiles in Q2 2026.	investing.com 2026-09-19

The same data as JSON: /api/northsea/projects.json.

Sources & licences.

Open government and sector data first. Every hand-curated fact links to the page we read it on.

Bulk layers

Wind farms, oil and gas platforms, pipelines and cables: Contains data from the European Marine Observation and Data Network (EMODnet) Human Activities, emodnet.ec.europa.eu/en/human-activities, licensed under CC-BY 4.0.

Pipeline and cable lines are simplified for display (about 110–165 m) and are not suitable for engineering or navigation. EMODnet aggregates national sources; for the Netherlands that is RVO / Noordzeeloket and Rijkswaterstaat data. Retrieved 2026-09-18.

Hand-curated layers

TenneT grid platforms, yards and sites, and the headline projects were built fact by fact from official project pages, company disclosures and trade press. Each object carries its own source link and retrieval date. Positions of these objects are approximate (zone centroid or postal address) and are marked as such.

No paid database (such as 4C Offshore) and no OpenStreetMap data is used.

Basemap

Land, borders, the 200 m depth line and place names: made with Natural Earth (public domain), clipped and simplified by us. No external tile server: the map loads from this site only.

Software

Rendered with MapLibre GL JS (BSD-3-Clause), self-hosted.

The dashed links between Heerema’s Vlissingen yard and the 2GW platforms are schematic: they show who fabricates which jacket according to the cited sources. They are not cable routes.

The North Sea, live.