In our first Meet & Greet, we had the pleasure getting acquainted with the vertical-axis cup anemometers. Well, the cup anemometer’s partner in crime is the wind vane since they work together to provide measurement data on wind speed and wind direction, respectively. Without further ado, let’s have a meet with our wind vanes!

Generally, we find wind vanes in multiple applications throughout the life cycle of projects:

  1. On meteorological stations, we see wind vanes used when measuring for both wind and solar projects. In wind applications, they provide multi-height directional insights critical to wind farm design. For solar projects, wind vanes help understand structural loading and cleaning optimization.
  2. On wind turbines nacelles, they assist in pointing the turbine in the right direction to maximize productivity and contribute to sector-wise management of the turbine. In this process, the wind vane is integrated into the control system, acting as a critical input in the control and operation of the turbine.

This shows the importance of reliable wind vanes not only for development stage projects, but also for operating projects as well.

Wind vanes generally come in two different types: digital and analogue. At Energy Canvas, we carry both, such as the Thies First Class TMR and the Thies First Class POT.

The Thies First Class POT represents the historical technology of analogue potentiometric wind vanes that use electrical circuit contact to measure the wind direction. On the other hand, the Thies First Class TMR uses tunnel magneto resistance technology, which uses contactless magnetic field disruptions to determine angular position.

With the newer technology, the digital TMR wind vanes win on both the technical and commercial perspectives. A few examples include:

  • Cheaper selling price while achieving more precise measurements
  • Better data availability near the North orientation since there is no dead band
  • More resilience since the angular position is scanned contactless by a magnetic sensor

Although the TMR technology offers many benefits, continuity of measurement for legacy systems often means using potentiometric wind vanes. In these situations, we tend to recommend like-for-like replacements, such as the Thies First Class POT and the Thies Compact POT models.

So, whether you’re looking to explore how new technology can enhance your project or looking for replacement alternatives for a legacy system, we’ve got you covered. Get in touch with us and we will be more than happy to match you with the right wind vane!