Cotentin wind farm is situated in Basse-Normandie, France. It was brought online in 2004 and is owned by .
It is near .
See below for data.
Wind farms, as a general rule require wind speeds of 4.5 metres per second or more.
A perfect place for a project like Cotentin could have a near constant flow of non-turbulent wind all year round, having a minimum chance of sudden potent bursts of wind. An important factor of turbine siting is furthermore admittance to local demand or transmission capa.
Before development, Cotentin was probably screened on the foundation of a wind atlas, and validated with wind measurements. Meteorological wind data alone is usually not sufficient for precise siting of a large wind power project.
Site info around would have been a major element in the ‘development’ choice Winds around are analysed for at least a year or so plus the introduction of detailed maps. Only then are wind turbines installed.
The wind hits quicker at higher altitudes as a result of reduced effect of drag. The rise in velocity with altitude is most spectacular at the surface and is impacted by landscape, surface roughness, and upwind obstacles such as trees or buildings. Velocity rises with altitude and is more pronounced near land and is changed by terrain, surface and limitations.
Wind speeds growing with altitude is part of a wind energy law. This forecasts wind speed rises with the 7th root of altitude. Doubling the altitude of a turbine, then, enhances the expected wind speeds by 10%, and the predicted power by 34%.
The distance of 7x Rotor Diameter is placed between each turbine, ie they’re spaced out so they don’t affect each other. But this isn’t necessarily the situation in hilly areas.
Individual turbines at Cotentin are interconnected with a medium voltage (usually 34.5 kV) power collection system and communications network.
At a substation, that medium-voltage electric energy is increased in voltage with a transformer for link with the high voltage transmission system. Construction of a land-based wind farm requires installing of the collector system and substation, and possibly roads to each turbine site.
Facts about Cotentin wind farm
- Name: Cotentin
- Wind turbine Supplier: Vestas Wind Systems, Model: Vestas Multipower 52, Units: 8,
- Country: France
- Developer: RES Group
- State: Basse-Normandie