The Federal Energy Regulatory Commission on Dec. 28 approved a November 2013 application from FFP Missouri 2 LLC for a license to construct and operate the proposed Arkabutla Lake Hydroelectric Project, with an authorized capacity of 5.1 MW.
The project will be located at the U.S. Army Corps of Engineers’ Arkabutla Dam on the Coldwater River near the town of Arkabutla in Tate and Yalobusha counties, Mississippi.
The project will be located at river mile 86, approximately 8.5 miles southwest of the town of Hernando, Miss. The Coldwater River flows in a southwesterly direction from its headwaters near Holly Springs, Mississippi, to its mouth at the Tallahatchie River near Marks, Mississippi. The Tallahatchie River joins the Yalobusha River to form the Yazoo River, which in turn flows into the Mississippi River.
Arkabutla Dam is one of four dams that make up the Corps’ Yazoo Basin Headwater Project. The Headwater Project was authorized by Congress and provides flood control and benefits to recreation, fish and wildlife resources, and navigation.
The powerhouse will contain two identical vertical Kaplan turbine-generator units with a combined installed capacity of 5.1 MW. Power will be transmitted via a 1,574-foot-long, buried transmission line from the powerhouse to a new substation. From the new substation, a 2,712-foot-long, 12.5-kV, overhead transmission line will transmit power along Arkabutla Dam Road to an interconnection point at an existing distribution line owned by a local utility.
The project will operate in a run-of-release mode using flows made available by the Corps. The project will generate an average of 19,000 megawatt-hours (MWh) annually.