Area electric powercharge is variable peculiarly with periodic fluctuation.
区域电力负荷具有特殊的变化规律。
2
Research on the project using peak-valley electricity price to reduce the operation powercharge has active significance.
南水北调东线一期工程抽水用电量大，研究东线工程利用峰谷电价减少工程运行电费具有积极意义。
3
Powercharge is the most important funds income to change its charge taken mode, it can raise fund taken speed shorten midway and sediment time, raise fund using rate.