Moreau Grand Electric Co-Op

405 9th St
Timber Lake SD 57656

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Opening Hours

  • Mon: 7am-4pm
  • Tue: 7am-4pm
  • Wed: 7am-4pm
  • Thu: 7am-4pm
  • Fri: 7am-4pm
  • Sat: 7am-4pm
  • Sun: 7am-4pm


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Since 1946, Moreau-Grand Electric Cooperative has been serving the counties of Corson, Dewey and Ziebach as well as a portion of Standing Rock Indian Reservations. Located in Timber Lake, S.D., the cooperative offers a series of services, including monitoring and maintaining the Turtle automatic meter reading system. It also assists members in doing on-site energy audits, sizing homes for electric heat and overseeing the rebate program. Moreau-Grand Electric Cooperative partners with the other Touchstone Energy Cooperatives across the United States in managing energy use and reducing costs.