Calaveras Pipeline Hydroelectric Project

by David C. Auslam, Jr., Auslam & Associates Inc, North, Highlands, CA, USA,
Duane Sachs, Auslam & Associates Inc, North, Highlands, CA, USA,

Document Type: Proceeding Paper

Part of: Waterpower '85


The Calaveras Public Utility District (San Andreas, California) has a pipeline connecting its water treatment plant to the San Andreas Reservoir. By reducing the flow rate in the system from 9 cfs to 3 cfs, normal system demands could be fulfilled. As a side benefit of modifying the flow rate, energy could be recovered at each pressure reducing station by utilizing small hydroelectric power plans. Generating equipment provided was fully automated to start and stop generators at each station and to provide high demand flows when necessary. The complete system was put into automatic operation (ten months from beginning of feasibility study) on May 19, 1984. Each of the three stations is running up to 18 hours per day and producing 80 kw per hour, for a total installed capacity of 240 kw, producing in excess of 1 million kwh per year.

Subject Headings: Pipelines | Hydro power | Project management | Water treatment plants | Flow rates | Feasibility studies | Power plants | Water pipelines | California | United States

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