Aaron Larson
Articles By

Aaron Larson

  • Nuclear Power Plant Shuts Down Due to Leak

    PPL Corp. made the decision on Dec. 13 to take Unit 1 at its Susquehanna nuclear power plant offline due to a small water leak inside the plant’s reactor containment. The water leak is reported to be “well within” the plant’s limits for continued safe operation, but the company chose to shut down as a […]

  • COAL POWER Direct—Dec. 12, 2014

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  • Two Leading Renewable Energy Companies Agree to Combine

    NextEra Energy Inc. and Hawaiian Electric Industries Inc. (HEI)—two companies with substantial renewable energy resources—agreed on Dec. 3 to combine in a transaction valued at roughly $4.3 billion. Currently, NextEra Energy’s principal subsidiaries include Florida Power & Light Co. (the third-largest electric utility in the U.S.), and NextEra Energy Resources (North America’s largest producer of […]

  • Diablo Canyon Nuclear Plant: Solid as a Rock or Ready to Crumble?

    Although the official title of the U.S. Senate Environment and Public Works Committee hearing on Dec. 3 was “[Nuclear Regulatory Commission’s] Implementation of the Fukushima Near-T­erm Task Force Recommendations and other Actions to Enhance and Maintain Nuclear Safety,” much of the testimony focused on possible seismic problems in and around the Diablo Canyon nuclear power […]

  • E.ON to Spin Off Its Power Generation Business

    E.ON—a major investor-owned energy supplier that manages facilities across Europe, Russia, North America, Brazil, and Turkey—announced this week that it will embark on a new corporate strategy focused on renewables, distribution networks, and customer solutions, while combining its power generation, global energy trading, and exploration and production businesses into a new, independent company. “We are […]

  • EPA’s Proposed Revisions to Ozone Standards to Cost up to $15B Annually

    The Environmental Protection Agency (EPA) on Wednesday proposed to revise the national ambient air quality standards (NAAQS) for ground-level ozone to a range of 65 to 70 parts per billion (ppb) and sought comments on a level as strict as 60 ppb. The proposed level applies to primary (health-based) and secondary (welfare-based) ozone standards, but […]

  • Power Sector Fossil Fuel Revenues Decrease While Renewable Energy Grows Rapidly

    The U.S. Census Bureau released data on Nov. 18 showing that revenues for electric power generation industries that use renewable energy resources grew 49% from 2007 to 2012, while fossil fuel electric power generation industry revenues decreased 6.7% during the same time period. Fossil fuel revenues continued to dwarf renewable totals, bringing in $79.7 billion […]

  • Bechtel and Siemens Team to Build Virginia Combined Cycle Power Plant

    Panda Power Funds awarded the engineering, procurement, and construction contract for a 778-MW combined cycle power plant to a turnkey consortium of Bechtel and Siemens Energy Inc. The Panda Stonewall generating station will be located in Loudoun County, Va., on a 101-acre site about four miles southeast of Leesburg. It is the sixth order awarded […]

  • Environmental Group Alleges TVA Coal Ash Pollution Is Leaking Into River

    The Southern Environmental Law Center (SELC) informed the Tennessee Valley Authority (TVA) on Nov. 10 that it intends to bring suit under the Clean Water Act to stop the release of coal ash pollutants it says are leaking from the TVA’s Gallatin coal ash ponds into the Cumberland River. Gallatin Fossil Plant is a four-unit […]

  • COAL POWER Direct—Nov. 12, 2014

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  • Point Level Capacitance Switch for Fly Ash Hopper Measurement

    If you’re the person tasked with controlling the level of fly ash in collection hoppers, you know how difficult the application can be. What at first looks like a simple measurement quickly proves to be much more demanding in actual execution. The first problem is the environment inside the collection hoppers, which is extremely challenging […]

  • Nuclear Plants on the Edge Could Benefit from Clean Power Plan

    A couple of recently released reports offer some hope for the future of nuclear power plants operating on the fringe of profitability. Moody’s Investors Service suggests that the U.S. Environmental Protection Agency’s (EPA’s) Clean Power Plan “could increase the value of nuclear power as a non-carbon emitting generation source.” In its report, “Environmental Mandates and […]

  • Advanced Coal-Fired Combined Heat and Power Plant Begins Operation in U.S.

    Great River Energy’s (GRE’s) Spiritwood Station began commercial operation on Nov. 1. The plant—located about 10 miles east of Jamestown, N.D.—is a combined-heat-and-power plant that can generate up to 99 MW of electricity, depending on the amount of steam being supplied to its partner facilities. The station is expected to be about 60% efficient while […]

  • ERCOT Concerned, Faces Power Shortages in Lower Rio Grande Valley

    The Electric Reliability Council of Texas (ERCOT) completed an evaluation of a plan to export power to Mexico from the Frontera Generation Station, located in Mission, Texas. Although the results indicated that the power system could operate effectively during normal conditions without Frontera’s capacity, ERCOT says it has concerns with power supply sufficiency and transmission […]

  • EPA Releases Additional Information on Clean Power Plan

    The U.S. Environmental Protection Agency (EPA) has released a notice of data availability (NODA)—making additional information and ideas available for public comment—and it has also proposed carbon goals for areas in Indian Country and U.S. territories. Janet McCabe, acting assistant administrator for the EPA’s Office of Air and Radiation, explained the two actions related to […]

  • EC Agrees on 2030 Climate and Energy Policy Framework

    Meeting in Brussels, Belgium, Oct. 23–24, the European Council (EC) agreed on the 2030 climate and energy policy framework for the European Union (EU), calling on all countries to come forward with ambitious targets and policies. The EC endorsed a binding EU target of at least a 40% reduction in domestic greenhouse gas emissions by […]

  • NRC Chairman Macfarlane Stepping Down

    Allison M. Macfarlane, chairman of the Nuclear Regulatory Commission (NRC), announced on Oct. 21 that she will leave the NRC effective Jan. 1, 2015, to take a position at George Washington University. Macfarlane took over the chair in July 2012—completing the last year of Dr. Gregory Jaczko’s term—and was confirmed for a second term in […]

  • Cooling Tower Fire Takes Down UK Power Plant

    A fire broke out in one of Didcot B power station’s cooling tower modules on the evening of Oct. 19, resulting in the shutdown of one of the plant’s two units. RWE Generation said that no RWE personnel or emergency services responders were injured during the incident, and that all employees have been accounted for. […]

  • Collusion Alleged Between EPA and NRDC

    Republicans on the Senate Environment and Public Works (EPW) Committee released emails between top officials at the U.S. Environmental Protection Agency (EPA) and the Natural Resources Defense Council (NRDC), which they say demonstrate a “very close working relationship” between the two organizations. The emails are associated with the development of the EPA’s proposed carbon rule, […]

  • Energy Efficiency Is Second-Largest Power Resource in Pacific Northwest

    The Northwest Power and Conservation Council (NPCC) reports that energy efficiency is the second-largest power resource in the Pacific Northwest region, ranking only behind hydroelectricity. The NPCC—authorized through the Northwest Power Act to develop and maintain a regional power plan, and fish and wildlife program, to balance the Northwest’s environment and energy needs—bases the claim […]

  • Gaining Control with Electraulic Actuators

    Plant engineers at Eskom’s Majuba Power Station in South Africa have been continuously looking for ways to improve efficiency and reliability. The six-unit, 4,000-MW, supercritical coal-fired plant was experiencing an efficiency decrease of 5% to 7%, which plant engineers determined was caused by poor performance of the actuators on their condensate level control valves (CLCVs). […]

  • Global Nuclear Industry Optimistic

    A mix of lucky timing and post-Fukushima recalibration appears to be responsible for a general mood of optimism at the first biennial World Nuclear Exhibition being held just outside of Paris this week. The event, organized by the Association of French Nuclear Industry Exporters (AIFEN) has attracted 495 exhibitors and an estimated 7,000 visitors from […]

  • COAL POWER Direct—Oct. 17, 2014

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  • European Commission OKs Hinkley Point Nuclear Deal

    On Oct. 8, the European Commission (EC) decided that the state aid included in the Hinkley Point C nuclear plant construction proposal is compatible with European Union state aid rules. The approval allows key elements of the agreement between EDF Group and the UK government, including a guaranteed “strike price” of £92.50/MWh ($148.76/MWh) for power […]

  • FERC Approves Cove Point LNG Export Terminal Project

    After more than a year of deliberation, the Federal Energy Regulatory Commission (FERC) approved Dominion’s proposal to construct and operate liquefaction and export facilities at its existing Cove Point liquefied natural gas (LNG) import terminal located in Lusby, Md. The proposed export facility will be contained within the existing footprint of the 131-acre import terminal […]

  • Damaged Nuclear Fuel Rods Found in North Anna Reactor

    Dominion Virginia Power found two damaged nuclear fuel rods in Unit 2 of its North Anna Power Station located in Louisa County northwest of Richmond. The discovery was made during a regularly scheduled refueling outage that began on Sept. 7. The company believes the fuel rods were damaged as the result of “baffle jetting.” The […]

  • Coal Ash Continues to Challenge Duke Energy

    On Sept. 23, Duke Energy told the Public Service Commission of South Carolina that it intends to excavate a portion of coal ash at the W.S. Lee Steam Station located in Anderson County. The company has been dealing with a coal ash release from its Dan River Steam Station that occurred on Feb. 2, and […]

  • South Africa and Russia Sign Nuclear Power Agreement

    While meeting in Vienna on Sept. 22 for the 58th International Atomic Energy Agency General Conference, representatives from the Republic of South Africa (RSA) and the Russian Federation signed an Intergovernmental Agreement on Strategic Partnership and Cooperation in Nuclear Energy and Industry. “South Africa today, as never before, is interested in [the] massive development of […]

  • Two Units at Coal Power Plant Back Online Following Spring Fire

    With Units 6 and 7 back in operation, Colorado Springs Utilities (CSU) has restored 80% of the generation capacity at its Martin Drake Power Plant located in downtown Colorado Springs. The plant was taken offline after sustaining significant damage during a May 5 fire. Most of the damage occurred in the area surrounding Unit 5, […]

  • Seven Coal-Fired Units to Be Retired as Result of Settlement

    Consumers Energy—Michigan’s largest utility—reached an agreement with the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice that will result in more than $2 billion being spent on upgrades at its power plants and the closure of seven coal-fired units, according to the company. The settlement resolves claims that Consumers Energy violated the […]