INSTALLATION OF MONITORING STATIONS - Wind Resource Assessment: A Practical Guide to Developing a Wind Project - page 69

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90°

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90°

Prevailing wind direction

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Item # Component

Lightning brush
60-m tower
Anemometer
Wind vane
Temperature probe
Date logger

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Notes:
• Mount 57.2-m anemometer booms just above top guy ring.
• Mount 47.4-m anemometer booms just above the second highest guy ring.
• Mount 32-m anemometer booms 1 m above guy ring attower neck down.
• Distances taken from the ground to the sensors (not booms).

Figure 5-5. A typical recommended mounting configuration for a 60-m tubular NRG TallTower.
Source: AWS Truepower.

the top and bottom anemometers is recommended. For example, if the top mon-
itoring height is 50 m, the lowest monitoring height could be 30 m, since the
ratio of the two is 1.66.
• At projects with multiple monitoring stations (met towers or remote sensing), it
is useful to match one or more of the monitoring heights between the stations to
facilitate comparisons between them.