Measuring the Wind
An important first stage for a wind project is collecting wind
Data about wind speed and direction in a particular area can
be used to develop predictive models of power output from a wind
turbine and these can be used for economic analysis.
Good quality wind data for the Townsville region has been collected
by the Australian
Institute of Marine Science from a weather station located
in the Townsville shipping channel.
However, when wind data has been collected some distance away
from the site of a proposed wind farm, there may be some variance
in the wind speeds between the two sites.
It is possible to use powerful computers to model what the wind
speeds will be in one area using data collected somewhere else.
This work has been conducted for two locations in Townsville
by the CSIRO
Wind Energy Research Unit . This analysis was created for
the Townsville Port, and the Cleveland Bay Purification Plant
Site, as part of the Townsville City Council Carbon Neutral Water
Recycling Project. See below for the Results of the Cleveland
Bay Wind Modelling.
(Unfortunately, the geographical extent of these calculations
did not reach to the Rock Pool end of the Strand so it has not
been possible to cross-check the figures against the projections
for the Strand Wind Project).
These calculations form the basis of a pre-feasibility study
for a commercial wind farm. To get a more accurate understanding
of the wind conditions it is necessary to erect a wind monitoring
station on site. This will allow the collection of wind data from
the location of the proposed wind power site.
A wind monitoring station was erected at the Cleveland Bay Purification
Plant site in June, 2004.
Once tweleve month's worth of onsite wind data has been collected,
this data can be analysed and feed into a feasibility study. The
feasibility study may consider:
- potential power yield of the site
- electrical engineering issues
- connection to the mains grid
- power purchase arrangements