This paper presents the Estimation that has been undertaken in order to quantify the windrnresource available at Adama II Wind Farm using the Wind Atlas and Application Programrn(WAsP). It was made through retrieving the data measured by anemometer and wind vanes atrnKusaye site which is stored in a data logger from 16/11/2011 to 9/12/2012 at 70 meters abovernground level.rnEstablishment of Wind Farm is asserted by estimation of wind resource at a given site, applyingrnwind flow modeling methodologies. The source data at Adama II Wind Farm indicated that thernmean wind speed is 8.62 m/s whereas the emerged mean wind speed and the mean wind powerrndensity were obtained to be 8.66 m/s and 440 W/m2, respectively, at 70 m. Site independent orrnregional wind climate has also been calculated for five roughness classes and five standardrnheights along with all sectors of a Wind Rose to estimate the wind climate at the site throughrnutilizing the characteristics of Sany SE7715 Wind Turbine Generator.rnThe results of the assessment presented that the prevailing wind direction is ENE direction withrnmore than one third of wind is blowing in ENE. From the recorded data at 70 m, the mean windrnspeed at 50 m is estimated to be 8.22 m/s, which suggests that the wind resource at Adama II isrnwind class of 6. At the mast location for a single WTG the wind power density is 452 W/m2 andrnthe Gross Annual Energy Production ranges from 1.5 to 11.99 GWh at 70 m height. Placing thern102 SE7715 WTGs in accordance with the proposed layout at the Wind Farm, the Gross AnnualrnEnergy Production is 664.745 GWh and net AEP at the site is 403.669 GWh. After repositioningrnthe WTGs to potential locations, the net AEP is estimated to be 478.786 GWh, an increment ofrn75.12 GWh on the Net Annual Energy Production, an increase of about 18.6 %.