Site Survey

After initial communications regarding the site location and boundaries, Heidra can perform a desktop site survey. We are able to look at limiting parameters such as grid connection, distance to nearest dwelling, air traffic control implications, mobile phone and TV interference. If appropriate we will measure the location, height and characteristics of all wind obstacles relevant to your site.

To measure obstacles we use a Leica A8 Disto with laser range finder. The in-built tilt sensor and camera unit allows accurate and rapid measurement of heights. Locations are recorded to 3 m accuracy using a WAAS enabled GPS.

We will email you a pdf report which includes an initial annual energy estimate using the Noabl wind speed and local long term wind rose. The estimate accounts for the wind obstacles surrounding your site and is based on your preferred wind turbine(s). The report will propose a suitable location for a wind monitoring mast to accurately measure wind speed, direction and shear. Please note that the Noabl wind speed is notoriously unreliable and is only used to give a qualitative idea of the wind speed.