Here are some datasets that might be of additional interest:
Eastern Wind Dataset
The Eastern Wind Dataset contains modeled wind farm data points for the eastern United States for 2004, 2005, and 2006. It is intended for use by energy professionals such as transmission planners, utility planners, project developers, and university researchers who perform wind integration studies and estimate power production from hypothetical wind plants.
The wind plant power output dataset is several hundred gigabytes. In addition to this dataset, 3TIER produced the gridded raw wind speed dataset, which is tens of terabytes. This raw wind speed output dataset has not been smoothed, nor Model Output Statistics corrected. Read about the details of dataset processing in this conference paper. Making this raw wind speed dataset public would be an enormous undertaking and is beyond the scope of this project.
3Tier has a paid version of wind speed time series data for across the globe:
The 3TIER Wind Time Series and Prospecting Tools allow you to explore wind behavior and long-term variability across the globe at a flat low price. Now you can quickly and easily prioritize sites and better understand the uncertainty of your long-term corrections – a critical factor when evaluating project locations.
CSIRO has historic and predicted wind speed data based on climate models. It includes Germany:
Abstract : The CSIRO Dawn-2100 archive contains datasets for atmospheric, land and oceanographic variables for the approximate period 1850 - 2100 (dependent on model). These have been created through the concatenation of 20th century (20C3M) and other scenario (currently SRESA1B or SRESA2) data from a number of the 25 differant global climate models (GCM) from various countries. The SRESA2_cal_windsp dataset in particular contains the variable windspeed (windsp) which has been calculated from GCM outputs of eastward wind near surface (uas) and northward wind near surface (vas) under the scenario SRESA2 emissions 2001 to 2100. These variables have also been further analysed to give monthly, seasonal and annual trend data, calculated from a monthly timeseries referenced to the area-weighted mean global warming values. Data for variables is available in 12 month, annual and 4 seasons(DJF, MAM,JJA,SON) format with 27 files totaling 2.95 GB as Netcdf files. Available for internal use and analysis by CSIRO staff on the HPSC cherax.
The European Environmental Agency has a published report with aggregated data on wind energy potential in Europe:
Europe's onshore and offshore wind energy potential
An assessment of environmental and economic constraints