在宾夕法尼亚州的匹兹堡，电费由复杂的电价控制。对该市的配水系统进行了研究，以确定是否可以通过计算机调度水泵运行来降低水泵成本。分析集中在一个子系统上，该子系统包括六个泵站和六个水库。泵送速率和能源成本之间的二次关系用于确定泵运行的顺序和持续时间。该软件在每个站生成每小时的抽水计划。该程序使用历史需求和1989年实际电费在子系统上运行。比较表明，最佳解决方案可以节省15%的能源成本。计算机优化软件包正在一个泵站进行测试。包括7个参考文献、表格、图表。

In Pittsburgh, Pennsylvania, electricity costs are governed by a complicated tariff. A study of the city's water distribution system was carried out to determine whether pumping costs could be reduced through computer scheduling of pump operation. Analysis focused on a subsystem that includes six pumping stations and six reservoirs. Quadratic relationships between pumping rate and energy cost were used to determine the sequence and duration of pump operation. The software generates an hourly pumping schedule at each station. The program was run on the subsystem using historical demand and actual 1989 electricity bills. The comparison indicated the optimal solution could have saved 15 percent in energy costs. The computerized optimization package is being tested at one pumping station. Includes 7 references, tables, figures.