However, the wind's randomicity, intermittence and seasons lead to the output of wind power not smoothly, so that the stability and security of the electric power system will be reduced.
但是由于风能具有随机性、间歇性以及季节性的特点，这就使得风力发电的出力不平稳，严重削弱了电网的安全性和稳定性。
Since the wind energy, solar energy have the intrinsic intermittence and fluctuation, their integration into the grid will lead to the power fluctuations.
风能、太阳能等可再生能源本身具有间歇性和波动性的特征，因而接入电网后将产生相应的功率波动。
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