DETROIT – The U.S. Army Corps of Engineers, Detroit District, USACE, announces a recent contract award to replace equipment at the St. Marys Falls Canal Hydropower plant in Sault Ste. Marie, Michigan.
Koontz Electric Company, Inc., from Morrilton, Arkansas, was awarded nearly $3.2 million to remove and replace protective relays and switchgear/motor control assemblies in the 21.5 megawatt, MW, hydropower plant at the Soo. The protective relays monitor various types of electric power measurement and provide equipment protection; and the switchgear/motor control assemblies direct and distribute electrical power to auxiliary plant equipment and circuits.
The St. Marys Falls Canal Hydropower plant is located in the northwest corner of the Soo area complex. The project is expected to begin in the next few weeks and be completed by fall 2017.
The hydroelectric generating plant facilities at the Soo consist of two powerhouses with a total installed capacity of 21.5 MW, rated at a flow of 405 cubic meters per second. The Main Powerhouse located at the foot of the rapids has three generating units each of 5.5 MW capacity installed in 1951-52 and one generating unit of 2.5 MW capacity installed in 1954. Its adjoining features include the north and center dikes, which form the headrace, and the footbridge, which provides access to the powerhouse across the Unit 10 tailrace.
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Release no. 100215-01