That was one of many details to emerge at the opening day of the oral hearing into the project which started yesterday.
Inspector Kevin Moran of an Bord Pleanála presided over the opening day of hearing.
As some of the area comprises a Gaeltacht, the hearing was bilingual with translators on site and is expected to last more than a week.
The hearing heard how Straboy Wind Energy Ltd made an application in April 2011 to Donegal Co Council for 25 turbines , a substation and various works over six townlands near Glenties.
Planning was granted in January 2012 for 22 turbines , with 21 conditions attached.
The turbines proposed will be 99.5 metres high with a blade diameter of 70 metres.
The hearing heard that a total of 11 km of new roads will be required to be built on the site, comprising the townlands of Straboy, Meenlargan, Derk Beg, Mulnaminbeg, Derryloughan and Loughcrillan.
A total of 15 submissions have been made against the windfarm and 64 parties submitted their observations on it.
Among the groups are An Taisce, Alternatives to Pylons, Gweebarra Conservation Group , local landowners and The Golden Eagle Trust.
They are protesting on grounds of health, impact on visual beauty of the area, the negative impact to salmon spawning grounds and freshwater pearl mussel colonies.
Evidence was heard from the applicant, Straboy Wind energy Ltd today that the entrance to the site will be approximately 3.9 km from Glenties main street on the R250.
It was stated that the development will not be visible from the main street, and that no buildings will be located less than 500 metres from the wind farm development .
Straboy was mentioned as a high wind energy area- generating an average of 8.5 metres energy a second.
The site will cover a 474 hectare area. The company say it is outside the boundary of an area of exceptionally high scenic amenity.
It is envisaged that the turbines will be transported from the port of Killybegs to the site, and that the construction will take 24 months.
It would take 242 lorry trips to transport all the necessary pieces for the turbine construction, but these journeys would be taken outside of peak travel times.
Due to the amount of expert witnesses who will be called to give evidence for all parties and the number of submissions to be heard, the hearing is expected to continue into next week.