Installation of a new met mast for wind assetment in Ghana

A new guy-wired lattice met mast was installed in Ghana last 2016 February by Alromar Wind. It was three missions in one, executing all the works in collaboration with the French company SolEol (experts in solar and wind projects consultancy as well as in Due Diligences of solar and wind projects), the works were development during one week, for our client in Ghana Eleqtra.

The first part of the mission was the substitution of half of the booms in one of the lattice met mast already installed, for a new Ammonit booms that accomplished the IEC normative. We proceed to the substitution of all the booms with redundant sensors, in this case anemometers Thies First Class, and one boom with a Thies Compact wind vane.

Once finished the works in the 120 lattice met mast, the team travelled to other site where there was installed a 50m NRG tubular mast, which conservation state is really bad, mainly because all the guy wires are deeply corroded, so any maintenance work in a safely with the NRG Tubular mast was impossible.

The adopted solution was the installation of a new guy wire lattice met mast side by side with the NRG tubular mast. Civil works were executed based in the system of steel plates buried, having been executed this entire works with local people. Once finished the civil works, Alromar proceed to the assembly of the 51m lattice met mast supplied by Alromar

In the new met mast has been installed new Thies wind sensors with a new data-logger, in concrete, 3 Thies First Class anemometers with MEASNET calibration, 2 Thies Compact Wind vanes, and an Ammonit Meteo 40 data-logger with satellite communications, also 2 obstruction lights of 10Cd were installed at 25m and 50m. All installation of sensor certified by SolEol team according to IEC normative.

The last part of works consisted in removing the old booms and NRG sensors from the tubular NRG mast, after this Alromar team proceeds to change all the corroded guy wires from the tubular NRG mast and install a new ones. This works will allow removing the tubular mast in a safety way, but this works should be done in a new mission once the sensors of both mast stay getting data for several months at the same time, that will allow to correlate with the historic data from the NRG tubular mast to the new lattice met mast.

We want to thank you the help obtained from SolEol team and from Eleqtra team in Ghana especially from Kobby and Lucius.

If you need more information about the services of Alromar in solar stations or wind met mast please don’t hesitate in contact us just clicking Information about met mast.