Offshore Electricity Infrastructure in Europe - European Wind Energy ...

Annex d – details of results
FiGuRe 13.4: duRatiOn cuRves FOR the ‘wind yeaR 2030’, FOR a sinGle OFFshORe tuRbine in FROnt OF the belGium
cOast, FOR the sum OF all expected On&OFFshORe wind FaRms in belGium in 2030 and FOR the sum OF all expected
On&OFFshORe wind FaRms in euROpe in 2030
Power
(% of inst. capacity)
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000
The larger the grid and the larger its transmission capacity,
the larger the smoothing effect will be of wind
energy. This effect of course also holds for aggregation
of demand or other weather or resource dependent
generation sources.
D.I.II Visualising spatial power
correlations: von-Bremen-Maps 63
A new way of identifying spatial correlations of
wind power production is shown in Figure 13.5 and
Figure 13.6. The simple idea is to calculate the correlation
between a time series of a certain local variable,
like local wind speed at a specific point in space, to a
prescribed reference time series which is fixed. Then,
all these correlations for a high number of geographical
points, preferably for a high density of grid points,
are plotted as a map. In this way, the map shows the
spatial characteristics of a specific correlation.
The von-Bremen-map in Figure 68 shows the spatial
correlation of local wind power time series and the
German Wind Power Generation in spring 2007.
Figure 13.5 shows that the area which shows the highest
correlation with the aggregated sum of the German
Time (hours)
Single Offshore Turbine Total Belgium On&Offshore Wind Total EU On&Offshore Wind
63 Developed by Dr. Lueder von Bremen (ForWind) in September 2010.
FiGuRe 13.5: vOn-bRemen-map shOwinG spatial
cORRelatiOn between lOcal wind pOweR time seRies
and the measuRed GeRman wind pOweR GeneRatiOn time
seRies in spRinG 2007
wind power generation is the region between Bremen,
Hamburg and Hannover. This plausible result is due to
the simple fact that the major shares of German wind
power capacity are installed in the northern part of the
country and the high density of turbines obviously results
in a high correlation. The more interesting result
is that the correlation shows a clear west-east pattern:
The map reflects that the wind power production
is strongly correlated from West to East (e.g. England,
BeNeLux, Germany, Denmark and Poland), but less
130 OffshoreGrid – Final Report