The U.S. Army Corps of Engineers office in Louisville, Ky., will be out for comment until Feb. 6 on a Section 404 Clean Water Act permit application from HenderSun Energy LLC related to a combined-cycle power project in Henderson County in western Kentucky.
The project site is on Left Descending Bank of the Green River at Mile 32.3 in Henderson County, near a stream called Cash Creek. The permitting covers construction of a barge unloading facility and modification of the location and design of currently-permitted water intake and discharge structures and attendant features.
Said a Corps public notice: “In order to provide access for large facility structures and building equipment to the site a barge unloading facility is required. Construction of the barge unloading facility would require the excavation of 5,800 cubic yards of dredged material below the Ordinary High Water Mark (OHWM) elevation of 359.4 of the Green River. Dredged material would be discharged in the uplands for beneficial use in the construction of the currently permitted natural gas combined-cycle generating facility. A total of 0.44 acre below the OHWM of the Green River would be disturbed by the construction, with 26 cubic yards of fill material including riprap, stone, and road base being discharged over approximately 0.12 acres.
“The location of the proposed barge unloading facility would conflict with the currently permitted location of the unconstructed water discharge facility on the site. The applicant has proposed to relocate the proposed location of the water discharge facility to an adjacent area to avoid the conflict. Redesign on the water intake structure would include the addition of debris deflectors consisting of eight 18 inch diameter piles with a top elevation of 347.75 to protect the intake structure.”
A project contact listed in the Corps notice is: Michael L. McInnis, HenderSun Energy LLC, 4350 Brownsboro Road, Suite 110, Louisville, Kentucky 40207.
A Sept. 19, 2016, story in a local newspaper, the Henderson Gleaner, said that HenderSun Energy requested a conditional use permit to operate an electrical generation facility in a heavy industrial zone at the Henderson County Board of Zoning Adjustment. After holding a public hearing, the board approved the request.
The site plans dating back to 2001 had previously included a coal-fired generation plant proposed by Erora Group LLC. “With Erora, we had a couple of projects which were developed and sold to other parties, but were not completed primarily because of the Enron bankruptcy,” said Mike McInnis, managing director of the Erora Group, as quoted in the newspaper story.
Now HenderSun Energy plans to begin construction on the new version of the plant in 2017. During construction, McInnis estimated that approximately 500 jobs will be created, while 20 to 30 jobs will be needed for work within the plant, which is scheduled to be completed in 2020.
The Kentucky Department for Environmental Protection said in an August 2015 permitting document that the prior month it received an application for an administrative amendment to change the name of a permitted air emissions source from Cash Creek Generating Station to HenderSun Generating Station and to change the permittee name to HenderSun Energy. The permit as of August 2015 was revised accordingly.
Cash Creek Generation LLC had proposed to construct a natural gas-fired combined-cycle plant on Kentucky State Highway 1078 in Henderson County. The project will be comprised of two combined cycle combustion turbines (CTs), each equipped with a heat recovery steam generator (HRSG) and duct firing. Each CT will each drive an electric generator and the two HRSGs, in combination, will drive a third electric generator with steam. The duct firing will produce additional steam for electric generation.
The power output is to be approximately 231.9 MW from each turbine at 0 degrees F (does not include power from the steam turbine electric generator). The maximum gross output for the entire facility is to be 849 MW at 0 degrees F.