Date Windfarm wind project was installed in Hokkaidō, Japan It was in fact brought online in 2011 and is owned by .
It is near Date City.
See below for data.
Generally speaking, economic wind generators require a wind speed of 4.5 m/s (16 km/h) or higher.
A great destination for a project like Date Windfarm could have a near constant flow of non-turbulent wind all year round, having a minimum chance of sudden effective bursts of wind. An important factor of turbine siting is also access to local demand or transmission capaDate City.
During the planning stages the Date Windfarm wind farm would have been checked and confirmed through wind measurements. Meteorological wind data alone is usually not ample for accurate siting of a large wind power project.
Site data around Date City would have been a major factor in the ‘development’ choice Winds around Date City are evaluated for at least a year or so plus the creation of detailed maps. Only then are wind turbines installed.
The wind hits faster at greater altitudes as a result of reduced influence of drag. The boost in velocity with altitude is most dramatic at the surface and is affected by landscape, surface roughness, and upwind obstructions such as trees or buildings. Velocity boosts with altitude and is more obvious near land and is transformed by landscape, surface and limitations.
Generally, the growth of wind speeds with growing elevation follows a wind profile power law, which predicts that wind speed rises proportionately to the seventh root of altitude. Doubling the altitude of a turbine, then, enhances the predicted wind speeds by 10%, and the estimated power by 34%.
The distance of 7x Rotor Diameter is placed between each turbine, ie they are spaced out so that they don’t affect one another. But this might not be the way it is in hilly areas.
Individual turbines at Date Windfarm are interlocked with a medium voltage (usually 34.5 kV) power collection system and communications network.
At a substation, this kind of medium-voltage electric current is increased in voltage with a transformer for connection to the high voltage transmission system. Construction of a land-based wind farm requires installing of the collector system and substation, and perhaps access roads to each turbine site.
Facts about Date Windfarm wind farm
- Name: Date Windfarm
- Wind turbine Supplier: Bonus, Model: 1.3MW, Units: 6,
- Country: Japan
- Developer: Eurus Energy Date Hokkaido Electric Power
- State: Hokkaidō
- City: Date City