After exploiting the wind data of 70 m height wind measurement site in Songmenshan-Jishan wind farm and the average wind speed data of Duchang Weather Station for nearly 20 years
wind energy characters of Songmenshan-Jishan area were detailed calculated and analyzed
meanwhile
the feasibility of the wind re source development in this area was evaluated. The result showed that: At all th e levels
northerly winds prevailing throughout the year
the dominant wind dire ctions are N and NNE
in these two directions
the wind energy accounted for abo ut 90% of the total wind energy. At the height from 30 to 70 meters
the turbule nce intensity and wind shear is small. The average wind power at 50 and 70 meter s are 302.8 and 326.7 w/m2
and the percentages of effective hours are 73 to 76%