Wind Measurement
We provide our services using RSDs (Sodar and Lidar), and Met Mast equipment
Since 2010, we have executed numerous wind measurement projects. Our projects have primarily been located in Finland, but we have also constructed wind measurement masts in Sweden. Additionally, we have been responsible for maintaining sodars in the project.
In Finland, we have installed wind measurement devices inland, on the open fells of northern Lapland, and on coastal islands in the open sea.
Our top priorities in wind measurement projects are reliable system installation, well-executed maintenance, and thorough documentation. This ensures high-quality wind data for our clients. Our mast measurements adhere to the IEC 61400-12:2017 Ed 2.0 standards.
Frequently Asked Questions:
Do you rent out measuring devices?
Hafmex rents out AQSystem’s AQ500 and AQ510 Wind Finder Sodars, as well as ZX
Lidar’s ZX300 Onshore and ZX300M Offshore Lidars. For measuring masts, we primarily
use sensors from Vaisala, Thies, and NRG, along with Ammonit data loggers.
Do you install customer-owned equipment?
Regarding customer-owned equipment, yes, we install, maintain, and repair customerowned measuring devices and systems. These include Sodars, Lidars, measuring masts,
and power supply systems.
For example, when it comes to Lidars, our installation process adheres to the following
standards and guidelines:
IEC 61400-50-2 Ed.1 (2022): Wind measurement – Application of ground-mounted
remote sensing technology.
IEA Wind RP 15: Ground-Based, Vertically-Profiling Remote Sensing for Wind
Resource Assessment (2013).
MEASNET Evaluation of site-specific wind conditions, V3 (2022).
Manufacturer’s guidelines: Windcube V2.1 User manual (Vaisala 2022).
Hafmex has extensive experience in operating remote sensing wind measurement devices
since 2010. Additionally, we are a Vaisala L1 certified lidar operator.
Are the measuring devices provided by Hafmex calibrated?
As for calibration, all measuring devices supplied by Hafmex are calibrated. We perform calibrations either with the device manufacturers or at accredited calibration facilities. The calibration certificate is provided along with the measuring device.
What kind of warranty do Hafmex’s supplied measuring devices have?
For the equipment we supply, there is a 12-month material warranty for newly delivered
measuring devices and systems.
Does Hafmex provide power supply systems?
Regarding power supply systems, we rent, sell, and maintain portable hybrid systems
primarily for electrifying weather measurement stations in locations without access to the
power grid. These systems typically combine solar panels and diesel generators. Remote
monitoring and control are managed via remote connections. We also have experience
with fuel cell systems such as EFOY, and we have the capacity to monitor and perform
routine maintenance for these systems.
How long does the measurement campaign last?
Generally, we recommend wind measurements lasting at least 12 months, preferably even
longer. This allows us to assess wind patterns throughout different seasons.
When does it get windiest?
Windiness varies between seasons and years. Over the long term, wind intensity is
strongest during the autumn and winter months.