The Design of the Nanpil River Hydropower Project

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by Brian L. Moentenich, US Army Corps of Engineers, Portland, OR, USA,

Document Type: Proceeding Paper

Part of: Water Power '87

Abstract: In 1980, the State of Pohnpei (then spelled Ponape) asked the Pacific Ocean Division of the U. S. Army Corps of Engineers to investigate the feasibility of constructing a hydroelectric facility on the Nanpil River. During World War II, the Japanese had constructed a small hydro plant on this river. This plant is now abandoned and has preserved as a historic site. The results of this study indicated a hydroelectric plant of approximately 1700 kw would be economically feasible. The Corps of Engineers proceeded to prepare plans and specifications in 1983 on a cost reimbursable basis. The Hydroelectric Design Center of the Corps North Pacific Division designed and prepared plans and specifications for the powerhouse and penstock portions of the Project. The Pacific Ocean Division designed the intake works, prepared the non-technical provisions and contract administration. The contract was awarded to Black Micro Hydropower of Honolulu for 5. 62 million in November of 1985.

Subject Headings: Hydro power | Power plants | Rivers and streams | Hydraulic design | Conduits | Ocean engineering | Historic sites | Feasibility studies | Historic preservation | Pacific Ocean | North America | Hawaii | Honolulu | United States

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