POWER

State senators in Minnesota and Kentucky passed crucial legislation that could end longstanding bans in those states on the construction of new nuclear plants.

The UK government on Tuesday said it would push forward with legislation to create a new independent statutory body to regulate the country’s nuclear power industry. The new agency, the “Office for Nuclear Regulation” (OCR), will carry out regulatory functions performed currently by the Health and Safety Executive (HSE) and the Department for Transport.

A strategic plan to accelerate development of offshore wind energy, released by the Departments of Energy (DOE) and Interior (DOI) on Monday, focuses on overcoming the relatively high cost of offshore wind energy; the technical challenges surrounding installation, operation, and grid interconnection; and the lack of site data and experience with project permitting processes.

The Department of Energy (DOE) last week released additional details of its “SunShot Initiative,” a program that seeks to reduce the total costs of photovoltaic (PV) solar energy systems by about 75% before 2020 so that costs for PV systems can compete with other forms of energy without subsidies.

Agriculture Secretary Tom Vilsack today announced the selection of Basin Electric Power Cooperative to receive a loan guarantee to construct more than 100 wind turbines to produce 151.5 MW of electricity. The loan guarantee will provide financing for engineering, procurement, construction, and commissioning of the PrairieWinds wind farm energy project in central South Dakota.

By Kennedy Maize Washington, D.C., February 5, 2011 – We are all familiar, sometimes too much so, with utility regulation. As customers, we encounter the results regulation every day. Many of us, in our business lives, work with (or against), ponder, and praise (or damn) utility regulation. But none of us has given more thought, […]

Mississippi Power last week announced that its new integrated gasification combined cycle (IGCC) plant under construction in Kemper County, Miss., will be named in honor of David M. Ratcliffe, recently retired chairman, president, and CEO of its parent company, Southern Co.

The past week brought a flurry of news from across the nation about challenges to the Environmental Protection Agency’s (EPA’s) measures to curb greenhouse gases (GHGs). Sens. Jay Rockefeller (D-W.Va.) and James Inhofe (R-Okla.) are spearheading separate measures to delay or block the EPA’s authority, and Arizona withdrew its support for the EPA in a massive legal challenge concerning its “endangerment finding.”

New Jersey’s Governor Chris Christie (R) on Friday made effective controversial state legislation that promotes the construction of new power plants with a total capacity of up to 2,000 MW by offering developers long-term, ratepayer-subsidized energy contracts. On Monday, in response to the measure, a group of major utilities asked the Federal Energy Regulatory Commission (FERC) to protect “the integrity of competitive power markets.”

The Texas Commission on Environmental Quality (TCEQ) last week voted 2-0 to approve an air permit for the 1,300-MW Las Brisas Energy Center. The approval for the $3.2 billion petroleum coke–fired project planned for Corpus Christi, Texas, comes despite objections from the federal Environmental Protection Agency (EPA) and recommendations by two administrative law judges against the permit’s issuance.

A California Superior Court judge in San Francisco has provisionally ruled that the California Air Resources Board (CARB) did not adequately comply with requirements from the California Environmental Quality Act (CEQA). The tentative decision could prevent implementation of a statewide cap-and-trade program due to start next year until CARB addresses those requirements.

Canada’s Nuclear Safety Commission (CNSC) last week completed the third and final phase of the pre-project design review for the Advanced CANDU Reactor (ACR-1000), making it the first third-generation reactor in the world to have passed that milestone in Canada. The CNSC’s findings mean there are no fundamental barriers to licensing the reactor design from the crown-owned Atomic Energy of Canada Limited (AECL), a company whose future ownership is ambiguous.

A massive winter storm on Wednesday that blustered over more than 30 U.S. states, from New Mexico to Maine, shut off the lights for millions around the country. Regional grid operator the Electric Reliability Council of Texas (ERCOT) instituted an energy emergency and instructed utilities to begin rotating blackouts throughout Texas to compensate for 7,000 MW of power plants that were shut down as a result of the cold snap.

On December 23, 2010, one day before the Yuletide season, when members of Congress, the media, and Tea Party activists are least likely to watchdog the federal bureaucracy, the U.S. Environmental Protection Agency (EPA) announced rulemakings to establish New Source Performance Standards (NSPS) for greenhouse gas (GHG) emissions from power plants and refineries. Or maybe "whispered" would be more accurate.

The 2009 blockbuster movie 2012 about a global cataclysm combined Hollywood special effects with supposed predictions by Nostradamus; a Mayan calendar that ends on December 21, 2012; and a very rare planetary alignment that supposedly occurs on the same day. Hollywood producers seldom let technical accuracy get in the way of a good story, but suppose, this one time, the story has an element of truth.

In the September and October 2010 issues, POWER Contributing Editor David Daniels explored the causes and damage mechanisms of condenser tube leaks (“Taming Condenser Tube Leaks,” Part I and Part II). Dennis J. Schumerth, Valtimet’s director of business development, took issue with several of Daniels’ statements regarding the proper use of titanium condenser tubes. We have given Schumerth the opportunity to express his concerns and for Daniels to reply.

An unintended consequence of employing selective catalytic reduction and wet flue gas desulfurization to reduce nitrogen oxide and sulfur dioxide levels at coal-fired power plants has been unwanted sulfur trioxide (SO₃) emissions. Picking the right sorbent in the right amount can eliminate that problem.

At Morgantown Generating Station, plant personnel used innovative methods to combine model predictive control with distributed control system–based process control algorithms to improve waterwall temperature control and main steam temperature control and to enhance unit ramp rate capability. The previous heat rate and NO_x optimization performance gains were retained. Focusing beyond basic loops of feedwater, air, and O₂, the project considered issues such as PID controller override configuration and limitations. The techniques used to overcome these challenges improved unit ramp rate capability beyond any previous unit performance.

MHI to Continue Pre-Construction Work for North Anna Unit. Mitsubishi Heavy Industries Ltd. (MHI), through Mitsubishi Nuclear Energy Systems Inc., and Dominion subsidiary Virginia Electric and Power Co. on Dec. 27 said they had reached an agreement to continue pre-construction, engineering, and planning work in preparation for a third unit at Dominion’s North Anna Nuclear […]

Development of Vogtle Electric Generating Station Units 3 and 4—the first new nuclear power plant units in the U.S. in decades—has generated considerable excitement. The next generation of nuclear plants, represented by these units, includes at least two major improvements: the use of passive safety systems and a reliance on digital control systems. The latter represents a gigantic leap in modernization and a fundamental change in control of the plant.

The Electric Power Research Institute has developed a pair of diagnostic tools that combine and integrate features from multiple sources of plant information. The Diagnostic Advisor and the Asset Fault Signature Database will improve diagnostics for and troubleshooting of equipment faults by providing a holistic view of the condition of plant equipment.

A common concern for gas turbine power plants is treating exhaust gases to comply with laws restricting pollutants present in the gases that are emitted into the ambient atmosphere. The challenge for designers is to control the exhaust gas operating temperature within a range that maximizes performance of the oxidation and reduction catalysts.

One important factor in power plant control system performance is the response time of the process measurement used in the control system. The response time of boiler steam temperature sensors and thermowells is examined, as is those sensors’ and thermowells’ effect on desuperheater temperature response time and, therefore, steam temperature control performance.

In the 1950s, temperature-equalizing columns were commonly used in steam drum differential pressure–based devices for measuring water level. However, these columns are problematic because a portion of the reference leg can flash to steam on a pressure decrease (load increase), and this will result in a temporary, false, high-level measurement, which adds to the swell effect. The columns can also result in measurement inaccuracies. It’s time to replace these antiquated instruments with a more modern reference leg.

Compared with other solid fuel–fired plants, the systems and components required for handling and processing biomass appear quite familiar, but important fuel differences must be considered. A successful biomass plant design must provide flexibility for handling the expected wide range of biomass fuel properties and characteristics.

A recent Washington Post article attacks coal as a fuel with a dim future. The author points to the large number of plant retirements as evidence of its impending demise. Checking the actual data reveals a much different story.

Wheelift Systems introduced its self-propelled trailers (SPT) in capacities up to 100 tons. They were developed for in-plant operation in congested, confined areas and in narrow intersecting aisles. Highly maneuverable, the Wheelift SPTs feature computerized independent steering, on-center rotating front axles, remote control operation, low-profile design, and on-board power generation. Each SPT has two on-center […]

Efficient boiler operation requires boiler auxiliary equipment to operate in harmony. The air preheater, for example, though it has few moving parts, is vital to maintaining efficient boiler performance. In this second installment of our Power 101 series, we examine performance degradation caused by corrosion and fouling of the air preheater that results from the combustion of coal plus the effects of ammonia and sodium bisulfite injection for SO₃ mitigation.

Westinghouse’s AP1000 reactor design hit several milestones in recent months, prompting speculation that it could take the coveted lead in the charge to deploy the world’s third-generation nuclear power plants.

HD Electric Co.’s new PRX-500 Proximity Voltage Detector is an addition to its voltage detector product line. With nine selectable voltage ranges from 120 V to 500 kV, the PRX Proximity Voltage Detector features an easy-to-use electronic touch pad with large buttons. The PRX provides an audible and visual indication of voltage detected from elbow […]