Wind resources at Horns Rev

energy. environment. knowledge. Page 41 of 69
wind speed of 9.67 m/s, Weibull A parameters of 10.8 m/s and Weibull k parameter of
2.5.
4.3 Comparison with previous estimates
Table 4.4 shows a comparison of wind speeds and Weibull factors generated for this
analysis, and a comparison with previous estimates from [4], [5] and [6].
The results contained in this report are in good agreement with those obtained
previously, although it should be noted that the measured values are lower than the
long-term mean. Please note that nearly 30,000 records were used in the analysis – onsite
measurements were not used in [4] and [5].
Table 4.4 Comparison of wind resource estimates of wind speeds at Horns Rev
Method Data Source U 48 m A k
Energy density
48m
(m/s) (m/s) (W/m^2)
Horns Rev
Best estimate Lightship (Højstrup et al., 1997) 9.1 10.2 2.2 800
Horns Rev
WAsP Lightship (Barthelmie et al., 1998) 9.2 10.4 2.2 844
WAsP Tjæreborg (Barthelmie et al., 1998) 9.72 11 2.4 933
Horns Rev
Best estimate Lightship (Barthelmie et al., 1998) 9.2 10.4 2.3 810
Method Data Source U 62 m A k
MCP
MCP
MCP
Weibull
Horns Rev 99-01
/ Juvre met mast Tech-wise report no. 01-079 2001
Horns Rev 99-01
/ Tjæreborg met
9.94
mast Tech-wise report no. 01-079 2001 10.1
Horns Rev 99-01
/ Hvide Sande Tech-wise report no. 01-078 2001 9.72
Energy density
48m
(m/s) (m/s) (W/m^2)
Horns Rev 99-02
/ Hvide Sande This report 9.79 11.05 2.34 898
Horns Rev 99-02
MCP / Hvide Sande This report 9.67 10.8 2.5 801
Observed Horns Rev 99-02 This report 9.49 10.71 2.33 820
Best estimate
Horns Rev 99-02
/ Hvide Sande This report 9.79
Report no.: D-160949
Tech-wise A/S is an international consulting Tech-wise A/S
engineering company specialised Kraftværksvej 53
in energy and environment DK-7000 Fredericia