Offshore wind farm
Noordwijk, the Netherlands
Eneco and Mitsubishi Corporation (50% each)
The 129MW Eneco Luchterduinen wind farm is located 23km off the coast between the cities of Zandvoort and Noordwijk in the Netherlands. The offshore wind farm was developed by a 50/50 joint venture between the Dutch energy company Eneco and Japan’s Mitsubishi Corporation. The project was completed at a cost of €450m ($480m).
The wind farm occupies a 25km² area off the Dutch coast at water depths between 18m and 24m. It is located 17km south of the existing Eneco-operated 120MW Princess Amalia Wind Farm, which was opened in 2008. Both wind farms are operated from the port city Ijmuiden in North Holland.
Onshore cable construction work for the project began in October 2013. The first wind turbine at Eneco Luchterduinen was installed in April 2015 and first power was generated in May. All the turbines were installed by June and the wind farm was officially opened in September 2015.
The Eneco Luchterduinen wind farm generates clean electricity for nearly 150,000 homes.
Details of the Eneco Luchterduinen offshore wind farm
The offshore wind farm consists of 43 Vestas V112 turbines of 3MW capacity each. Each turbine, mounted on a monopile foundation, has a hub height of 81m, blade length of 55m and rotor diameter of 112m. Each turbine is placed on a tower 62m above sea level.
The project was originally proposed to be developed with 51 Vestas V90 turbines having a total capacity of 153MW, but the proposal was later amended to 43 Vestas V112 turbines with a total capacity of 129MW. Eneco and Mitsubishi Corporation signed the agreement to jointly construct and operate the wind farm in January 2013.
Power transmission from the Eneco Luchterduinen offshore wind farm
The electricity generated by the wind farm is supplied from an offshore substation to shore via a 25km-long undersea cable and further via a 150kV, 8km-long underground cable to the grid operator TenneT’s transformer substation in the municipality of Sassenheim before it is fed into the national grid. The high-voltage, offshore substation was completed in February 2014.
Eneco Luchterduinen wind power project construction
Tunnelling for the onshore cable was completed using a directional drilling technique. The cable laying was started after the installation of flexible pipelines and construction of the onshore section of the cable was completed in April 2014. The project generated approximately 560 jobs during its construction phase.
Contractors involved with the Eneco Luchterduinen wind project
Van Oord was awarded the engineering, procurement and construction contract for the wind farm in January 2013. The contractual scope included the construction of foundations for the turbines, electrical infrastructure, the offshore transformer station and installation of turbines.
Van Oord also provided the transport and installation vessel Aeolus for installing the turbines. Aeolus completed the installation of the 43 wind turbines in June 2015.
VSMC received a contract to install and bury a 25km-long export cable for the project, in April 2014. Vestas was also awarded the contract to supply, install and commission 43 V112-3.0MW offshore turbines for the project in September 2013.
The turbines were preassembled and pre-commissioned onshore at Vestas’ preassembly facility at the Port of Esbjerg, Denmark, before shipping to the wind farm site. The contract also included a 15-year service and maintenance agreement.
LS Cable & System was the cable provider for the offshore wind farm. Eneco subsidiary Joulz was the design, supply and installation contractor for the onshore cable.
In October 2015, Joulz was also selected for the management and maintenance of the offshore high-voltage station for the Eneco Luchterduinen wind farm.
Visser & Smit Hanab provided drilling services for the onshore cable construction.
Wind Minds was contracted to carry out the permit management during the construction phase of the wind farm.