蓄能运行即通过不同蓄能设施利用电网低谷剩余电能储存转换，变成和再生能源一样，可周而复始更新使用，形成可持续发展的循环机制。蓄能设施涵盖抽水蓄能和其他蓄电、蓄能装置。当今水电发展受限于水能资源，在原电力开发基础上再考虑蓄能运行后可使之步入新的境界，有利于风电等新能源和整个电网的可持续发展。

The power net will be created short in peak and surplus in valley. Supplementing pump storage plant into the ordinary hydropower, the surplus valley power can be changed into the precious peak power. Actually it is equivalent to say that the surplus power may be renewable and it is favorable to the sustainable development.