Texas Gas Transmission LLC applied March 4 at the Federal Energy Regulatory Commission for a certificate of public convenience and necessity to construct, own, operate, and maintain a new natural gas pipeline lateral to serve a new combined-cycle power plant that the Tennessee Valley Authority plans to build at its Paradise coal plant site in western Kentucky.
This project includes approximately 22.5-miles of 24-inch diameter pipe, a meter and regulator station, and appurtenant auxiliary facilities, extending from Texas Gas’ Midland 3 Compressor Station to an interconnection with TVA’s proposed combined-cycle natural gas-fired power plant located west of the town of Paradise in Muhlenberg County, Ky. The project will provide a design capacity of up to 230,000 million British thermal units per day (MMBtu/d) of firm natural gas transportation capacity.
Texas Gas requests issuance of an approval from FERC by December 2015, to allow Texas Gas to begin full construction by January 2016, and place the project facilities in service to meet TVA’s initial operation date, of Sept. 2, 2016, for test gas service. Achieving this in-service date is critical due to the contractual agreement with TVA and for TVA complying with the U.S. Environmental Protection Agency’s Mercury and Air Toxics Standards (MATS), Texas Gas noted.
In November 2013, the TVA Board of Directors approved a resolution to construct and operate a new combined cycle natural gas-fired plant at the Paradise Plant and retire the existing coal Units 1 and 2 when the natural gas plant is available.
Texas Gas executed a Precedent Agreement with TVA that provides for a design capacity of up to 230,000 MMBtu/d of firm transportation service on the proposed lateral at negotiated rates for delivery to TVA’s Paradise Plant for a primary term of 20 years. Texas Gas designed the project to provide a design capacity of up to 230,000 MMBtu/d of firm natural gas transportation service to meet TVA’s demonstrated demand for natural gas transportation service.
Upon the completion of natural gas-fired generation facilities at the Paradise site, coal-fired Units 1 and 2 at Paradise with a summer net capability of 1,230 MW will be retired. The coal-fired Unit 3 will remain in operation. Unit 3 is a cyclonic steam generating boiler with a maximum capacity of 11,457 MMBtu/hr. The nameplate capacity for Unit 3 is 1,150 MW.
TVA plans to construct a “three-on-one” combined-cycle facility at Paradise, which consists of three natural gas-fired combustion turbine (CT) generators; three heat recovery steam generators (HRSGs) with natural gas-fired duct burners, catalytic oxidation, and selective catalytic reduction (SCR); one reheat, condensing steam turbine generator; one natural gas-fired auxiliary boiler; three natural gas heaters; one diesel fire pump; one multiple cell cooling tower; two distillate-oil storage tanks and two aqueous ammonia tanks. Nominal generation capacity is 1,085 MW at 59 degrees F.