The Federal Energy Regulatory Commission said Nov. 19 that it has received two preliminary permit applications deemed filed on July 23 at the same time for proposed hydro projects.
They would be located at the U.S. Army Corps of Engineers’ Melvin Price Locks and Dam on the Mississippi River, near the City of Alton, in Madison County, Ill., and the City of West Alton, in St. Charles County, Mo. The applications were filed by Lock+ Hydro Friends Fund III LLC and the Western Minnesota Municipal Power Agency.
On Nov. 25, the Secretary of the commission, or her designee, will conduct a random drawing to determine the filing priority of these applicants. The priority established by this drawing will be used to determine which applicant will be considered to have the first-filed application. Then that party can get a preliminary permit and the exclusive right to study project feasibility.
The proposed projects are:
- The Lock+ prject would consist of a steel frame modular hydropower system with 50 turbines, which will be installed side by side into the weir west of the moveable gates. Each of the turbines will have a nameplate capacity of about 1.5 MW based on a recorded net head of 21 feet. The entire system of turbines should produce approximately 75 MW. The expected annual output is 427,050 MWh.
- The Western Minnesota project would consist of installing micro-turbines in a steel structure immediately downstream of the existing tainter gates 4 through 9 (a total of six gates). At the expected maximum operating head of 20 feet, the anticipated design flow would be 14,300 cfs per steel structure assembly and 85,800 cfs for all six steel structure assemblies. That would produce an estimated 24.9 MW per steel structure assembly, for a project total design of 149.4 MW. The expected average annual energy generation would be 445.4 GWh.