Latest
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Gas
Entergy Subsidiaries Buy Four-Unit CCGT Power Plant
Entergy Corp. announced on March 4 that three of its subsidiaries had closed on a transaction to purchase the 1,980-MW Union Power Station near El Dorado, Ark. The plant includes four combined cycle gas turbine (CCGT) units, each rated at 495 MW. Each unit operates two GE 7-FA combustion turbines with inlet air fogging, two […]
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Legal & Regulatory
Oregon Legislature Passes Bill to Eliminate Coal from State Power Supply
The Oregon Senate passed a bill on March 2 that will require electric companies in the state to eliminate coal-fired resources from their electrical supplies by January 1, 2030. The bill—which passed in the senate by a 17–12 vote—had already been passed by the Oregon House of Representatives (38–20). It now heads to Gov. Kate […]
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Renewables
Solar PV Capacity Factors a Mix of Insolation and Design
Utility-scale solar photovoltaic (PV) generation has exploded over the past few years. From nearly nothing in the late 2000s, the U.S. now has more than 10 GW of utility-scale solar PV in operation according to the Energy Information Administration. That figure should continue to grow strongly because of the recent extension of the investment tax […]
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Legal & Regulatory
A Brief History of U.S. Coal Ash Since the Kingston Spill
The disposal of coal ash, a combustion byproduct from coal-fired power plants, was propelled into the national conversation on December 22, 2008, when the Tennessee Valley Authority (TVA) Kingston power plant suffered one of the largest coal ash spills in history. Calls for regulatory action shifted pitch again after the Duke Energy Dan River spill […]
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History
Notable Coal Ash Spills [Slideshow]
The coal ash spill in December 2008 at the Tennessee Valley Authority’s coal-fired Kingston power plant may have triggered regulatory action, but it wasn’t the first or the most devastating disaster in the coal industry’s history. Coal Ash Spills at Power Facilities [gss name=”example1″ link=”none” ids=”85886,85788,85786,85790,85778,85888,85794,85784,85776″] Other Notable Coal Ash Spills [gss name=”example2″ link=”none” ids=”85772,85780,85782″] —Sonal […]
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O&M
Monitoring and Treatment of Closed-Loop Cooling Water Systems
There may be multiple closed-loop cooling systems at your power plant. Chances are good that they cool or control temperature on some very critical components. The two that are most likely to exist are the
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Renewables
Xcel Energy: Committed to Renewables, but Going Its Own Way
Utility holding company Xcel Energy, headquartered in Minneapolis and with large electric and gas operations in eight states in the upper Midwest, the Rocky Mountain West, and Texas, has ambitions to be the
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Technology
Beyond the Firewall: Best Practices for Cybersecurity Risk Management
Generating companies wondering if concerns about cybersecurity are overblown got some rude wake-up calls this winter. The first call came when Ukrainian media reported that a December 23 blackout that left
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Gas
New Metering Solution Controls Condensate in HRSG Systems
Many combined cycle and cogeneration plants with heat recovery steam generators (HRSGs) were originally intended as baseload power sources or steam producers. In recent years, however, some have been