New wind farms
In 2007 E-Connection secured, on behalf of two wind farm operating companies, the permits required for the construction and operation of three new wind turbines on the isle of Neeltje Jans, part of the Oosterschelde flood barrier. One wind turbine on the quay at the Vluchthaven for Windpark Neeltje-Jans BV and two wind turbines on the southern harbor dam near the Roompot locks for Windpark Roompotsluis BV.
These three new wind turbines are the same turbine type as the existing wind turbines from wind farm Neeltje-Jans and wind farm Roompotsluis: Vestas V90 3 MW.
For Windpark Roggeplaat BV the permits haven been secured for the repowering and operation on Roggenplaat, another isle in the flood barrier. Here 12 old Enercon turbines (commissioned in 1992) are replaced by four new Enercon turbines.
Construction in a major flood barrier
Because the sites are on the flood barrier no construction activities are allowed between April 1st and October 1st of any year. Therefore the construction of the seven new wind turbines took place during two building periods in 2011 and 2012.
In 2011 the foundations, crane hard stands and work roads for the three Vestas wind turbines where constructed by H4A. In 2012 Vestas placed the wind turbines on the foundations. In 2011 the twelve old turbines of wind farm Roggeplaat where removed by Enercon followed by the four new wind turbines in 2012.
With the realization of these seven new wind turbines the landscape plan of Bosch and Slabbers has been achieved, in which at the major flood barrier on either sides of the road N57 wind farms consisting of four wind turbines are situated in squares.
Clean energy for more than 18.500 households
Jointly the seven new wind turbines will produce on average more than 60 million kWh per year.
That equals the yearly electricity consumption of over 18.500 Dutch households.
After years of project development the last permits required for the construction and operation of these repowering projects were granted in 2009.
Because construction will take place near protected nature conservation areas special precautions, determined in close operation with the relevant authorities, will be taken prior to and during the construction to protect wildlife and endangered plants.
To prevent disruption of breeding birds due to construction activities, prior to the start of the breeding season the work will be temporarily made unattractive with colored ribbons. The birds will look for other quiet sites nearby to build their nests. This will prevent that breeding birds will be harassed and leave their nests, thus spoiling the hatch.
Sites were endangered and protected plants grow have been identified. During construction work protective measures will be taken to prevent damage to the existing plants.
E-Connection strives to combine renewable energy projects with local nature development. Therefore in relation to the fourth wind turbine of wind farm Neeltje-Jans the nesting area nearby this wind turbine for local birds has been improved.
Connection to the regional and national grid
The power produced by the wind turbines is delivered to the regional and national grid. The power is transported from the Oosterschelde flood barrier to the grid connection point at Middelburg via a newly laid 20 kV ground cable. This connection was engineered and laid by E-Connection in 2006 for the wind turbines that were installed in 2006. The cables follow a 21 km route from Walcheren via the Veerse Dam across Noord-Beveland and on to the Oosterschelde flood barrier. For the seven new wind turbines the transport cable is commissioned to the regional utility. The regional utility realized a separate 20 kV ground cable from the Oosterschelde flood barrier to the grid connection point at Middelburg.