Rentel
Belgian EEZ, ~34 km from Zeebrugge. O&M at Port of Ostend.
Status
Operationallifecycle stage
Ownership
RNRentel NV — 100% ◆
Location
BelgiumNorth Sea
Technology
Capacity
309 MW ◆
Turbines
42 ◆
Model
Siemens Swt 7-0-154 ◆
Foundation
Monopile ◆
Site & conditions
Site rights
Seabed rights held ∴
Origination
Belgian offshore wind zone — domain concessions (Thornton Bank–Bligh Bank) · 2009 ·
Water depth
22–36 m ◆
Distance from shore
34 km ◆
Wind speed
9.3 m/s @ 100 m ≈
Revenue & grid
Offtake
Certificate ◆
Grid
Secured · 2019 ◆
Connection
Elia Modular Offshore Grid (MOG) to Stevin substation, … ◆
Schedule
FID
Oct 2016 ◆
COD
2018-Q4 ◆
Project timeline & ownership verified milestones on the spine · ownership from Hafrok’s transactions record
Origination · 2009-06
Belgian offshore wind zone — domain concessions (Thornton Bank–Bligh Bank)
- Awarded to
- Rentel NV
- Basis
- integrated tender
From the auction results — the round that created the project.
JV formation · 2016-Q3
Aspiravi Offshore · DEME Concessions Wind · Elicio · Green Offshore · Power@Sea · Socofe · SRIW Environnement · Z-Kracht stake not disclosed
- Stake
- not disclosed
- Consideration
- not disclosed
- Announced
- 2016-Q3
- Closed
- 2016-10
- Project stage
- pre-FID
Rentel NV formed as a consortium of eight Belgian companies via the Otary group, each holding 12.5%: Aspiravi Offshore, DEME Concessions Wind, Elicio (Electrawinds Offshore), Green Offshore (Rent-A-Port Energy), Power@Sea, Socofe, SRIW Environnement, and Z-Kracht. Project achieved financial close October 2016 for EUR 1.1bn total investment. Financed by 8 shareholders plus EIB and 8 commercial banks (AG Insurance, ASN Bank, Belfius, ING, KBC, KfW IPEX-Bank, Rabobank, Societe Generale). This entry records the JV formation / financial close milestone; no external stake sale took place.
Evidence
From Hafrok’s transactions record
Dashed tick marks today (13 Oct 2026). 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 history: 2018-Q4→2018-Q4 · 2 recorded revisions · held (announced 2018-Q4, unchanged)
Revenue & offtake contract duration and price levels · money of the day
309 MW contracted — concession
● Concession · Belgian offshore wind zone — domain concessions (Thornton Bank–Bligh Bank)
Price€129.8/MWh ·Capacity309 MWAwardedJun 2009Term20 yrs
Installation how the build is going · from sourced statements and Hafrok’s registers
Installation complete
Installation · on record
StageOperational
In operation since2018-Q4
Offshore construction2017-04 → 2018-Q4
Construction ports
PortPort of Ostend ◆installation and om
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 1
Offshore substationMOG / Modular Offshore Grid·220 kV · in service 2019 · owner Elia (Belgian TSO) · also serves Northwester 2, SeaMade (Seastar 252 MW + Mermaid 235 MW)
Grid connection · ready in time?
when each part of the grid connection is due, against the start date the developer states (black line) · a bar spans the whole year, quarter or month the source gives
installed or in serviceexpected deliveryearlier date that was later moved
Sources & verification
Rests on 15 sources (15 primary) · ◆ 6 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.
Operator12
[1]
[2]
[3]
[4]
[5]
Belgian Offshore Platform2025
“Rentel: 309 MW, 42 turbines, monopile foundations, water depth 22 to 36 meters, distance from shore 34 km, surface area 22.72 km2. The Rentel turbines are operational and produce green energy since 20…”
supportsCommercial operationWater depthDistance from shore
[8]
[9]
[10]
[11]
[12]
Jan De Nul
“Building works started early 2018. Later that year, production started to supply green power to approximately 300,000 Belgian households every year.”
supportsFirst power
[17]
Royal Belgian Institute of Natural Sciences (MUMM)2026-10-12◆ MUMM permit register: milestones for the…
"RENTEL" ... "Environmental permit" ... "Granted" ... "Minister responsible for the marine environment" ... "2013-02-08T01:00:00+01:00"
supportsConsentConsent granted
[18]
Moniteur belge / Belgisch Staatsblad2017-02-22◆ Arrêté royal du 9 février 2017 modifiant…
“9 FEVRIER 2017. - Arrêté royal modifiant l'arrêté royal du 16 juillet 2002 ... a) 129,80 euros/MWh pour les installations faisant l'objet d'une concession domaniale attribuée à la SA Rentel, pour la p…”
supportsMechanismDetail
Auction results1
[19]
RBINS / MUMM (Brabant, Degraer & Rumes, 2011 — Offshore wind farms in the Belgian part of the North Sea, ch. 2)2011◆ rbins-mumm-2011-belgian-owf-ch2
Table 1, "Overview of the dates when the projects were granted a domain concession and an environmental permit": C-Power 27/06/03 · Belwind 5/6/2007 · Eldepasco 15/5/2006 · Norther 5/10/2009 · Rentel …
supportsConcession · Belgian offshore wind zone — domain concessions (Thornton Bank–Bligh Bank)
Trade press2
[7]
CMS Law2024◆ CMS Expert Guide - Offshore wind in Belg…
“Rentel received its domain concession on June 4, 2009 for an area between Thornton Bank and Lodewijk Bank, with a capacity of 309 MW. The Green Certificate scheme provides support for 20 years. For Re…”
supportsoperatorConsentConsent granted
[13]