Aaron Larson
Articles By

Aaron Larson

  • Report: Power Plant Air Emissions Continue Steady Decline

    In a report released this week, M.J. Bradley & Associates found that in 2013 power plant SO2 emissions were 80% lower and NOx emissions were down 74% compared to releases in 1990—the year Congress passed major amendments to the Clean Air Act. The report, Benchmarking Air Emissions of the 100 Largest Electric Power Producers in […]

  • McCarthy: Supreme Court Decision on MATS Won’t Affect the Clean Power Plan Rule

    Environmental Protection Agency (EPA) Administrator Gina McCarthy remains firm in her resolve to create a landmark rule to reduce carbon emissions from power plants later this year. Speaking at the St. Regis Hotel in Washington, D.C., during an event sponsored by AREVA and hosted by The Christian Science Monitor, McCarthy said, “Last week’s ruling will […]

  • COAL POWER Direct—July 8, 2015

    Coal Power Current Issue | Find a Job | Post a Job Don’t Let Leachate Derail Your CCR Landfill Plans Developing a compliance approach for a new regulation sometimes means overlooking unintended consequences of the chosen compliance method. Preparing for compliance with the new U.S. Environmental Protection Agency (EPA) regulations on coal combustion residuals (CCR […]
  • Nuclear Power Plant Security Forces Fare Better on Inspections than TSA Agents

    The Nuclear Regulatory Commission (NRC) released details from its security inspection program for commercial nuclear power reactors and Category I fuel cycle facilities, finding only one “failure to protect designated target set components effectively” during the 23 NRC-evaluated force-on-force (FOF) exercises conducted in 2014. Although not perfect, the marks are far better than inspection results […]

  • Ignalina: Decommissioning Chernobyl’s Big Sister

    This is a web supplement to “Riding Off into the Sunset: Nuclear Decontamination and Decommissioning Update,” appearing in the July 2015 issue of POWER.   The Ignalina Nuclear Power Plant (INPP) is located in eastern Lithuania near Visaginas—a town of more than 20,000 people founded in the mid-1970s for workers constructing INPP and for the […]

  • Supreme Court Strikes Down EPA’s MATS Rule

    In a 5–4 decision announced on June 29, the U.S. Supreme Court overturned the Environmental Protection Agency’s (EPA’s) rules limiting mercury and other hazardous air pollutants released from power plants. In April 2014, the U.S. Court of Appeals for the D.C. Circuit upheld the Mercury and Air Toxics Standards (MATS), ruling in a 2–1 decision […]

  • Duke Proposes Full Excavation of 12 More Coal Ash Basins

    With plans already approved for the closure of 12 of its coal ash basins, Duke Energy on June 23 recommended the full excavation of 12 additional basins located in North Carolina. The company proposed excavating five basins each at its Cape Fear Plant in Moncure and its H.F. Lee Plant in Goldsboro. Additionally, it recommended […]

  • Vogtle Nuclear Plant Unveils Its New FLEX Dome

    Southern Co. announced on June 16 that construction has been completed on a new FLEX dome—a structure built to house emergency equipment needed to respond to an extreme external event—at its Vogtle nuclear plant. The Nuclear Regulatory Commission (NRC) is requiring U.S. nuclear plants to build protected structures like the FLEX dome in response to […]

  • COAL POWER Direct—June 10, 2015

      Current Issue | Find a Job | Post a Job Ten Advanced Combustion Systems That Are Getting the Government's Backing Ten projects selected on June 8 to receive funding through the National Energy Technology Laboratory's (NETL's) Advanced Combustion Systems Program could lower costs and improve the performance of combustion systems that generate power with […]
  • Famous Last Words: “It’s Never Happened to Us!”

    Don’t wait until after an incident to make improvements and correct problems in coal handling systems: That was the message delivered to attendees at the best practices workshop during the Powder River Basin Coal Users’ Group (PRBCUG) Annual Meeting, which began on April 20. The event—being held in Rosemont, Ill., in conjunction with the 17th […]

  • Only Pre-Service Inspections Remain Before First Nuclear Plant Restarts in Japan

    The Japanese Nuclear Regulatory Authority (NRA) approved Kyushu Electric Power Co.’s operational safety programs for Sendai Nuclear Power Station Units 1 and 2 on May 27. The approval is the last of three needed by the company to verify that the plant complies with new regulatory requirements implemented as a result of the Fukushima disaster. […]

  • EPA Takes Action to Eliminate Startup, Shutdown, and Malfunction Emissions Exemptions

    The U.S. Environmental Protection Agency (EPA) issued a state implementation plan (SIP) call action to 36 states directing them to correct specific startup, shutdown, and malfunction provisions in their SIPs to ensure they are fully consistent with the Clean Air Act (CAA). The action comes in response to a petition for rulemaking filed by the […]

  • Duke Announces Plan to Retire Asheville Coal Plant, Replace with CCPP

    Duke Energy announced on May 19 that it will construct a new 650-MW natural gas–fired combined cycle power plant (CCPP) and retire its 375-MW Asheville coal power plant by early 2020. The plan also includes the addition of solar generation at the site as well as construction of a new substation and 40-mile transmission line […]

  • Lawmakers Work to Make PRB Coal Less Attractive in Illinois

    A group of Illinois state lawmakers are proposing legislation to discourage the import of Powder River Basin (PRB) coal into the state, making locally mined coal more appealing to power plants. The coal competitiveness plan being proposed would modify regulations that allow electric utilities to pass through the cost of transportation to customers. According to […]

  • Experts: More Nuclear Power Is Needed

    “You can’t take a clean source of energy off the table.” That was the conclusion that a panel of four experts came to as they discussed the role that nuclear power should play in the battle to fight climate change. The panelists met on May 14 as part of the 62nd Annual Industry Conference and […]

  • Fire in Main Transformer Forces Shutdown of Indian Point 3 Nuclear Plant

    A fire in one of the Indian Point nuclear plant main electrical transformers resulted in the forced shutdown of Unit 3 at the facility on May 9. The fire started at 5:50 p.m. local time on Saturday and it was quickly extinguished by an automated sprinkler system, along with the action of trained onsite personnel. […]

  • DGR Is Preferred Nuclear Waste Solution for Canada, Scary for U.S.

    A Canadian joint review panel issued an environmental assessment report on May 6 for a deep geologic repository (DGR) for long-term management of low- and intermediate-level radioactive waste (L&ILW), concluding that the project is “not likely to cause significant adverse environmental effects.” Ontario Power Generation (OPG) proposed the DGR, intending to locate the facility at […]

  • Legal Challenges to Clean Power Plan Begin to Take Shape

    Attorneys general from three states—Oklahoma, Texas, and West Virginia—stepped forward on May 5 to present their objections to the Environmental Protection Agency’s (EPA’s) proposed Clean Power Plan. During testimony before the Senate Environmental and Public Works Subcommittee on Clean Air and Nuclear Safety, West Virginia Attorney General Patrick Morrisey presented three specific problems he sees […]

  • MIT Report: Uniform Nationwide RPS Program Needed

    An interdisciplinary study led by the Massachusetts Institute of Technology (MIT) Energy Initiative concludes, among other things, that “state renewable portfolio standard (RPS) requirements should be replaced by a uniform nationwide program.” The report—released on May 5—focuses on the future of solar energy, suggesting that a massive expansion in solar capacity to “multi-terawatt scale” is […]

  • COAL POWER Direct—May 6, 2015

      Current Issue | Find a Job | Post a Job The Carbon Capture and Storage R&D Frontier Given the costs and other concerns about currently available technologies for capturing and storing carbon dioxide from fossil-fueled power plants, interest in new technologies remains high. Here’s a look at some potentially promising approaches that are advancing […]
  • World’s Largest Internal Combustion Engine Power Plant Inaugurated

    With 38 tri-fuel engines and a combined capacity of 573 MW, IPP3—a plant constructed near Amman, Jordan—is now the world’s largest internal combustion engine–based power plant. The facility was inaugurated on April 29 in a ceremony attended by Jordan’s King Abdullah II Ibn Al Hussein. The plant was constructed by an engineering, procurement, and construction […]

  • New Mexico and Texas Locations Interested in Receiving Spent Nuclear Fuel

    Progress has been slow on finding a permanent disposal solution for spent nuclear fuel in the U.S., but an interim solution seems more palatable to developers in a couple of southwestern states. New Mexico Gov. Susana Martinez (R) wrote a letter to U.S. Secretary of Energy Dr. Ernest Moniz on April 11, informing him of […]

  • Fukushima Mitigation Strategies: Is Progress Being Made at U.S. Nuclear Plants?

    The chairman and ranking member of the U.S. Senate Committee on Environment and Public Works (EPW) presented conflicting progress reports on the status of Fukushima task force recommendations during a committee oversight hearing held on April 15. “You haven’t done really anything since Fukushima, as far as I can tell,” said Sen. Barbara Boxer (D-Calif.), […]

  • EIA: Reports of Coal’s Death May Have Been Greatly Exaggerated

    Electricity generation from existing coal-fired power plants will increase from 2012 levels through 2025, according to the Reference case presented in the U.S. Energy Information Administration’s Annual Energy Outlook 2015, released on April 14. In addition to the Reference case, five alternative cases—Low and High Economic Growth cases, Low and High Oil Price cases, and […]

  • Poll: Americans Are Not Too Worried About Climate Change, Still Favor Solar, Wind, and Nuclear

    A Gallup poll completed last month found that only 32% of adults in the U.S. worry a “great deal” about global warming or climate change, while 45% worry “only a little” or “not at all.” The survey was taken via telephone interviews conducted during the first week of March using a random sample of 1,025 […]

  • Material Inconsistencies Acknowledged in Nuclear Reactor Vessel Head and Bottom

    More trouble has been reported at one of the four European Pressurized Water Reactor (EPR) units currently under construction. AREVA announced on April 7 that chemical and mechanical testing conducted on a reactor vessel head and bottom similar to that of the Flamanville EPR (a 1,630-MW unit under construction on the west coast of the […]

  • COAL POWER Direct—Apr. 8, 2015

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  • Zion Nuclear Plant Decommissioning Trust Fund Depleting Quickly

    The balance in the Zion Nuclear Power Plant decommissioning trust fund was about 30% lower at the end of 2014 than it was the previous year according to a report filed by ZionSolutions with the Nuclear Regulatory Commission on March 30. The Report on Status of Decommissioning Funding for Shutdown Reactors—due annually—indicated that there was […]

  • First New Nuclear Unit in U.S. in Nearly 20 Years Is on Track to Begin Operating in 2015

    Plant officials from the Tennessee Valley Authority’s (TVA’s) Watts Bar nuclear facility said during a senior management meeting presentation that Unit 2—currently under construction—is expected to reach commercial operations on Dec. 13, 2015. Assuming it does, the unit will be the first nuclear reactor added to the U.S. fleet since Watts Bar Unit 1 was […]

  • Government Agencies Continue Partnership to Advance Hydropower Technology

    The U.S. Department of Energy, U.S. Department of the Interior, and the U.S. Department of the Army for Civil Works announced on March 24 that the three agencies would continue to collaborate on hydropower development for at least another five years. The agreement extends a memorandum of understanding (MOU) the three agencies originally signed in […]