Meteorological towers for the Arauco Wind Farm

Description
Tower Type: 2 TZ-45 Weather Towers
Total height: 84 meters
Other information:
- Autonomous solar power supply system composed of photovoltaic solar panels and batteries, to power the sensors and the datalogger.
- Hot-dip galvanized coating for both towers
Type of Service
Installation of two meteorological masts for wind resource measurement
Date
December 2024
General Data
Arauco, La Rioja, Argentina • 2024
Instrumentation
- 5 anemometers
to measure the magnitude of wind speed: four cup and one ultrasonic.
- 3 weather vanes
to measure wind direction, installed at 80 m, 76 m and 18 m.
- 1 humidity and temperature sensor
installed at 78 m.
- 1 barometer
to measure atmospheric pressure, installed at 78 m.
- 1 rain gauge
installed at a height of 2 m.
- 1 data logger
Campbell Scientific CR1000X to process and store signals from sensors.
- Obstruction lights (upper and middle).
- A system of atmospheric discharges.
Regulatory Compliance
Both weather masts were installed and commissioned in accordance with IEC-61400-12-1 Ed. 2 (Annex G) and MEASNET recommendations for the evaluation of wind resources.
Each mounted sensor was calibrated and installed following the IEC 61400-12-1 Ed.2 standard and MEASNET recommendations.
Anemometer and wind vane supports, including side supports, also meet the requirements of IEC 61400-12-1 (Annex G.4.3), ensuring the proper distance between the mast and the sensors to avoid wind speed deficit and flow distortions.
Certifications
All installed instruments have calibration certificates accredited by DKD (German Calibration Service), the entity responsible for correct measurement in accordance with binding international standards and which is part of the DAkkS, the official German accreditation body.





