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Since 1996 the Eritrean Department of Energy has been conducting a wind prospecting and wind survey program that has employed a variety of tactics to find and evaluate wind energy sites with high potential. This program has included occasional spot measurements at a variety of locations both in the Eritrean highlands and along the coast. Some sites have been visited only occasionally due to either their remote location, or lack of promise, while for other sites nearly continuous monitoring has begun. The locations subject to spot measurements are described in the Table B1.

 Of these sites, most have been visited only occasionally. Very approximate estimates of mean annual wind speeds are indicated by the '~' sign. These values are usually determined by comparison with wind speeds at Asmera where the mean wind annual wind speed is measured to be 3 m/s at 10 m height. Unless indicated otherwise, the sites are flat, and measurements are at 10 m height.

Several sites have had wind odometers installed, including Debresina, Wara, Aseb Telecommunications Tower, Rahayta, and Salasegna. For those sites, more precise estimates can be made based on measurements taken from June 1997 to January 1998. To make these estimates, the months are grouped into a summer monsoon season and a winter monsoon season. Averages are taken for each of the monsoon seasons, and a weighted average of the monsoon averages is used to estimate the mean annual wind speed. These measurements indicated that sites with mean annual wind speeds of above 5.5 m/s at 10 meters can be found in highland passes where there is channeling of the monsoon winds. This indicates that there are probably sites with mean speeds of 6-7.5 m/s at turbine hub heights of 30 meters, and that feasible sites for utility-scale wind power development may exist at selected locations in the Eritrean Highlands.