Part 2 - Eskom
Part 2 - Eskom
Part 2 - Eskom
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ENVIRONMENTAL SCOPING REPORT FOR THE PROPOSED 40MW OPEN CYCLE GAS TURBINE POWER<br />
PLANT IN THE AMERSFOORT AREA, MPUMALANGA<br />
7.1.3. Wind<br />
Bohlweki-SSI Environmental<br />
The UCG pilot plant has its own meteorological station, however data from the<br />
SAWS has been included to ensure that the data from the UCG pilot plant station is<br />
correct. Comparison was made between data sourced from the UCG pilot plant and<br />
data taken from the South African Weather Services. The period wind rose and<br />
frequency distribution for the UCG site is presented in Figure 7.4 and Figure 7.5 and<br />
the period wind rose and frequency distribution for the data sourced from the South<br />
African Weather Services is presented in Figure 7.6 and Figure 7.7. Wind roses<br />
comprise of 16 spokes which represent the directions from which winds blew during<br />
the period. The colours reflect the different categories of wind speeds. The dotted<br />
circles provide information regarding the frequency of occurrence of wind speed and<br />
direction categories.<br />
For the period assessed, winds predominated from the western and eastern sectors.<br />
The wind rose profile is typical of that experienced by low lying areas surrounded by<br />
an escarpment. From the eastern vector wind speeds of between 5.7-8.8m/s<br />
occurred most of the time. The same wind speeds occurred but were less common<br />
from the south easterly and north eastern sectors. Stronger winds of greater than<br />
8.8m/s were also experienced from the west. Smaller contributions of strong winds<br />
were also experienced from the west-southwest and west-northwest directions.<br />
Figure 7.4: Period wind rose derived from monitored data from the UCG pilot<br />
plant (2006 to 2007)<br />
E02.JNB.000308<br />
ESKOM HOLDINGS LIMITED<br />
01<br />
41<br />
08/10/2009