Aaron Larson
Articles By

Aaron Larson

  • COAL POWER Direct—Jan. 15, 2014

    Coal Power Stay Connected Current Issue | Find a Job | Post a Job Five Energy-Saving Tips for Compressed Air Systems 01.15.2014 | Aaron Larson Compressed air is vitally important to all power plants. Although in some cases it is used simply for convenience, such as when operating certain pneumatic tools, in other cases, compressed […]
  • ISO-NE: Brayton Point Retirement Denied

    Brayton Point’s non-price retirement (NPR) request was rejected in a Dec. 20 letter from ISO New England Inc. (ISO-NE) to EquiPower Resources Corp., owner of the 1530-MW fossil-fueled power station located in Somerset, Mass. The NPR had been filed on Oct. 6, 2013, which triggered a regional system assessment by ISO-NE. The review found that […]

  • New Geothermal Plant Begins Serving California Through One Nevada Transmission Line

    The Don A. Campbell geothermal power plant—a 16-MW base load complex located in Mineral County, Nev.—began full capacity operation on Dec. 6, 2013. The plant, named after the geologist who discovered the resource, is supplying electricity to Southern California Public Power Authority (SCPPA) under a Power Purchase Agreement. SCPPA, in turn, resells the power to […]

  • U.S. Electric Companies Brace for Extreme Winter Weather

    A large part of the central and eastern U.S. was hit with some of the coldest weather in decades on Jan. 6 and 7. A polar vortex—a large low-pressure area that normally spins in central parts of Canada circulating air up through the North Pole—dislodged and came down into the mid-section of the U.S. With […]

  • La Ventosa Wind Farm Capacity Increased By 27.5%

    Eleven new wind turbines have been added at the La Ventosa wind power complex in Juchitán de Zaragoza, Oaxaca, Mexico, raising the total capacity to 102 MW. Iberdrola, owner of the wind farm, has utilized Gamesa technology exclusively at all of its installations in Mexico. In this instance, 2-MW G80 wind turbines, standing 78-meters (256-feet) […]

  • Ownership Change Results in Closure of Three Coal Units

    Arizona Public Service (APS) has purchased Southern California Edison’s (SCE’s) ownership share in the Four Corners Power Plant Units 4 and 5. The two units—located on Navajo land in Fruitland, N.M.—generate a combined 1,540 MW. Ownership had previously been split between six companies, with SCE owning the largest portion (48%) and APS owning 15% prior […]

  • Acquisition Makes Westmoreland 6th Largest Coal Producer in North America

    The acquisition of Sherritt International’s Prairie and Mountain coal mining operations will push Westmoreland Coal Co. well into the top 10 of North American coal producers. The purchase helps Westmoreland diversify its assets. As the oldest independent coal company in the U.S., it has established mining operations in Montana, North Dakota, Wyoming, and Texas. The […]

  • New Finnish Nuclear Plant Moves Forward

    JSC Rusatom Overseas and Fennovoima have signed a plant supply contract to construct a nuclear plant of the AES-2006 pressurized water reactor design (Figure 1) in northern Finland, the companies announced on Dec. 21. 1. The AES-2006 is the latest upgrade to the Russian VVER unit. Currently, 18 VVER units operate in European Union countries. […]

  • Duke’s H.F. Lee Plant: Another One Bites the Dust

    Demolition specialists imploded the H.F. Lee Steam Plant stacks on Dec. 20, changing the landscape of Wayne County, N.C., forever. The 382-MW facility began commercial operation in 1951 and was retired on Sept. 15, 2012. The plant, originally known as the Goldsboro Plant, was renamed in 1964 after Harry Fitzhugh Lee, a district manager who […]

  • MISO Completes Largest-Ever Power Grid Integration

    Midcontinent Independent System Operator Inc. (MISO), the regional transmission organization (RTO) for a large portion of the Midwestern U.S., completed the integration of a four-state region of the electric grid across the South into its existing footprint in the Midwest at midnight, Dec. 18. The change in control, or cutover, was two years in the making, with […]

  • Dominion’s Indy Solar Projects Go Into Service

    Dominion announced that it has placed into service a group of solar generation projects in Marion County, Ind., that will generate up to 28.6 MW of electricity. The three projects, known as Indy Solar I, II, and III, were acquired in July 2013 from Sunrise Energy Ventures LLC, based in Minnetonka, Minn. All three projects […]

  • 1.05-GW Iowa Wind Expansion Moves Forward

    MidAmerican Energy Co. is already the top ranked, rate-regulated utility owner of wind generation in the U.S. and with 448 new wind turbines being added in Iowa—the largest wind expansion in the state’s history—its hold on that position will be further strengthened. In November, the company announced it had reached an agreement with Highland Wind […]

  • Transformer Fire Takes Down Nuclear Plant

    Arkansas Nuclear One Unit 2 was taken offline the morning of Dec. 9 due to a transformer fire in the site switchyard. Operators at the plant declared an “Unusual Event” at 8 a.m. CST and notified the Nuclear Regulatory Commission (NRC) of the situation. An Unusual Event is the lowest of four nuclear emergency classifications […]

  • Crystal River $1.18B Decommissioning Plan Submitted to NRC

    Duke Energy submitted its decommissioning plan to the Nuclear Regulatory Commission (NRC) this week for the company’s retired Crystal River nuclear plant in Florida. The 860-MW plant, located about 85 miles north of Tampa, went into service on March 13, 1977. It has been shutdown since September 2009 when engineers discovered a delamination, or separation […]

  • Europe’s Most Efficient Coal Plant Comes Online

    With an electrical efficiency of 45.95%, the Lünen hard-coal-fired power plant, located on the Datteln-Hamm Canal in the state of North-Rhine Westphalia, Germany, is Europe’s cleanest and most efficient. The 750-MW unit is owned by Trianel Kohlkraftwerk Lünen GmbH und Co. KG and has been online in continuous operation since Dec. 1. The plant had […]

  • Major Milestone Achieved at Concentrated Solar Plant

    AREVA announced that on Nov. 29 the first steam production was achieved at the concentrated solar power (CSP) plant it is constructing near Dhursar in the state of Rajasthan, India. The plant is Asia’s largest CSP installation and will be operated by Reliance Power. The 100-MW plant was approved for carbon credits in July under […]

  • Construction Permit Extended (Again) for Watts Bar Unit 2

    The Nuclear Regulatory Commission (NRC) has extended the expiration date of the construction permit for the unfinished Unit 2 at the Watts Bar Nuclear Power Plant (WBN) to Sept. 30, 2016. WBN is located about 10 miles south of Spring City, Tenn., and is owned by the Tennessee Valley Authority (TVA). TVA requested the extension […]

  • Improve Coal Flow by Using Insert Technology

    Coal-fired power stations rely on storing coal in large bunkers or silos. Over time, changes in the type and quality of coal can lead to poor flow during discharge, creating production inefficiencies and significantly reducing storage capacity. Manual intervention is frequently used to promote flow; however, this is a hazardous process for operators and fails […]

  • New Options Allow Silo Cleaning Without Confined Space Entry

    Anyone operating a coal-fired power plant has faced the challenge of keeping coal-handling equipment free of blockages and plugging. Not only do material flow problems interrupt smooth plant operations, but they also require dirty, sometimes dangerous, and often unscheduled maintenance work. As in many other industries, remote-controlled tools can help solve this problem. Bulk material […]

  • Public Utilities Commission Scrutinizes Xcel Cost Overruns

    The Minnesota Public Utilities Commission (MPUC) will hire a nuclear engineering consultant to investigate cost overruns associated with Xcel Energy’s Monticello Nuclear Generating Plant Life Cycle Management/Extended Power Uprate Project. The project, at an estimated cost of $320 million, was authorized by the MPUC in 2009 and included necessary upgrades to increase the 600-MW plant […]

  • 20,000 Nuclear Weapons Later, Megatons to Megawatts Program Complete

    U.S. Energy Secretary Ernest Moniz announced last week that the final shipment of low enriched uranium (LEU) derived from Russian nuclear weapons had departed from the port of St. Petersburg, Russia. “For two decades, one in ten light bulbs in America has been powered by nuclear material from Russian nuclear warheads. The 1993 United States-Russian […]

  • V.C. Summer Unit 3 Nuclear Island Basemat Completed

    South Carolina Electric & Gas Co. (SCE&G) announced the completion of another major construction milestone at its V.C. Summer Nuclear Station in Fairfield County, S.C. Having completed the first new construction nuclear concrete pour just seven months earlier, SCE&G finished the nuclear island basemat for Unit 3 on Nov. 4. “This successful basemat placement is […]

  • With Coal on the Way Out, Ontario Turns to Renewables

    ABB and its consortium partner, Bondfield Construction, announced on Nov. 5 that they have won an order from Canadian Solar Solutions to supply a 100 MW turnkey photovoltaic (PV) solar project for the Grand Renewable Energy Park in Haldimand County, Ontario, southeast of Toronto. Ontario is in the final stages of a decade-long plan to […]

  • Whitfield Goes on Offensive Versus EPA

    U.S. House Energy and Power Subcommittee Chairman Ed Whitfield (R-Ky.) unveiled draft legislation on Oct. 28 to address Environmental Protection Agency (EPA) rules affecting electricity generation. The bipartisan legislation is intended to ensure America can maintain a diverse and affordable electricity portfolio, which includes the use of coal, natural gas, nuclear power, and renewables. Whitfield […]

  • Hans Blix Promotes Thorium Fuel for Power Generation

    Former head of the International Atomic Energy Agency, Hans Blix, made a pitch for the use of thorium in nuclear power generation at the Thorium Energy Conference 2013, which concluded this week at the Globe of Science and Innovation at CERN (European Organization for Nuclear Research) in Geneva, Switzerland. The Swedish diplomat was the first […]

  • Former Dresden Nuclear Plant Workers Banned by NRC

    The Nuclear Regulatory Commission (NRC) issued orders on Oct. 28 prohibiting two former employees of the Dresden Nuclear Power Station in Morris, Ill., from participating in nuclear work under its jurisdiction. The two were implicated in an incident involving violations of the Behavioral Observation Program. Even without the order, the workers in question are unlikely […]

  • Agreement Sets Stage for Construction of New Nuclear Plant in UK

    EDF Group and the UK Government have reached an agreement in principle on the key commercial terms for an investment contract for the planned Hinkley Point C nuclear power station. Finalization of this agreement and construction of the plant are subject to a final investment decision. The government and EDF will work together to address […]

  • New Steam Generators Delivered to Davis-Besse Nuclear Plant

    FirstEnergy Corp. announced that two new steam generators have arrived in Oak Harbor, Ohio, for the company’s 900-MW Davis-Besse nuclear plant. The new steam generators are scheduled for installation during the plant’s refueling outage next spring. Fabrication began in 2009 at Babcock and Wilcox’s nuclear equipment manufacturing facility in Cambridge, Ontario. The 74-foot-long, 12-foot-wide steam […]

  • Experts Warn Utilities Need to Redefine Their Roles

    Utility roles are changing rapidly, and the utility of the future will need to be ready for a much more diversified, secure, and decentralized grid. That was one message at the Minnesota Utility Investors (MUI) 23rd Annual Meeting in Brooklyn Center, Minn., this week. MUI is a grassroots organization representing the interests of individuals and […]

  • Coal Plant Back Online Following Explosion

    CPS Energy announced that its 420-MW Deely Unit 1 power plant was returned to service on Oct. 12. The plant had been shutdown since Sept. 10, 2013, when it was taken offline following an explosion that resulted in damage to the cascade building, which houses the conveyor system that feeds coal into the plant. The […]