TVA
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Gas
TVA Will Build Gas-Fired Plant to Replace Coal-Fired Units
The Tennessee Valley Authority (TVA) has approved retirement of the Cumberland coal-fired power plant, with officials on Jan. 10 saying the utility will replace one of the plant’s two units with a 1,450-MW natural gas-fired combined cycle facility at the site. The TVA has held public meetings over the past few years amid much discussion […]
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Energy Security
Bulk Power System Deficiencies During Winter Storm Elliot Prompt Inquiries
Assessments are underway to pin down factors that prompted emergencies, tight grid conditions, and even load-shedding by major entities as Winter Storm Elliot bore down on the North American bulk power system (BPS) this past week. The Federal Energy Regulatory Commission (FERC), the North American Electric Reliability Corp. (NERC), and regional entities affiliated with […]
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Power Demand
Arctic Blast Roiling Reliability in TVA, MISO, SPP, PJM
An Arctic blast felt by a large portion of North America is causing reliability turmoil within some segments in its bulk power system, forcing reliability coordinators to declare emergencies, issue conservation warnings, or shed load. TVA, Grappling With Demand Surge, Resorted to Load Shed Temperatures averaging the single digits across the Tennessee Valley Authority (TVA) […]
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Coal
TVA Will Explore Building Utility-Scale Solar on Closed Coal Ash Sites
The Tennessee Valley Authority (TVA) will pursue a first-of-its-kind pilot program at the Shawnee Fossil Plant in West Paducah, Kentucky, to determine if closed coal ash sites are suitable for utility-scale solar projects. The self-funded U.S. corporate agency’s board on Nov. 10 unanimously approved a $216 million pilot project to explore repurposing the 1,071-MW coal-fired power […]
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Hydrogen
Six Major Electric Utilities Join Forces to Pursue a Southeastern Hydrogen Hub
Marking intent interest from the power sector in hydrogen’s decarbonization potential, six major utilities—Dominion Energy, Duke Energy, Louisville Gas & Electric Co. (LG&E), Kentucky Utilities Co. (KU), Southern Co., and the Tennessee Valley Authority (TVA)—have announced they will jointly pursue federal financial support for a Southeast Hydrogen Hub. The utilities, along with Battelle, an independent […]
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Solar
TVA, Silicon Ranch, DENSO Move Forward on Four Tennessee Solar Sites
A supplier of equipment to the e-mobility industry, including electric vehicles (EVs), joined with one of the largest U.S. independent power producers at a groundbreaking for the first of four solar power farms that will provide electricity for the manufacturer’s campus. DENSO, headquartered in Japan and with one of its U.S. manufacturing plants in Maryville, […]
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Hydro
TVA Successfully Completes a Dam Safety Modification Project for the Ages
When a sinkhole was discovered near the base of the Boone Dam embankment, the Tennessee Valley Authority’s dam safety engineers went to work determining the best fix. The complexity of the work and quality
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Nuclear
TVA Unveils Major New Nuclear Program, First SMR at Clinch River Site
The Tennessee Valley Authority (TVA) will invest in a major program that will explore the construction of multiple advanced nuclear reactors—starting with a GE-Hitachi BWRX-300 small modular reactor (SMR) at its Clinch River site in Tennessee. TVA Board members during a meeting on Feb. 10 unanimously approved TVA’s “New Nuclear Program,” a broad new initiative […]
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Nuclear
NRC Accepts Application for Kairos Pebble-Bed Reactor Construction Permit
The Nuclear Regulatory Commission (NRC) will review Kairos Power’s construction permit application (CPA) for its Hermes non-power demonstration reactor, which the firm has proposed to build at the East Tennessee Technology Park Heritage Center site, in Oak Ridge, and begin operating by 2026. The NRC formally accepted the CPA for review on Nov. 30, noting […]
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Coal
The Convoluted Tale of U.S. Coal Ash Management
Sometime around midnight on Dec. 22, 2008, a dike at the coal ash dewatering pond for the Tennessee Valley Authority’s (TVA’s) 1,400-MW Kingston power plant in Roane County, Tennessee, failed. That led to what has been reported as the largest industrial spill in U.S. history. TVA and the U.S. Environmental Protection Agency (EPA) initially estimated […]