POWER

Power costs from onshore wind turbines are expected to plunge 12% over the next five years due to the availability of lower-cost equipment and gains in output efficiency—and, in areas offering fair wind conditions, this could make wind power “fully competitive” with power produced from combined cycle gas turbines by 2016, new research from Bloomberg New Energy Finance shows.

Dominion Virginia Power on Friday began the restart of North Anna Power Station after garnering the Nuclear Regulatory Commission’s (NRC’s) permission and more than two months of inspections, testing and engineering, and seismic analysis to investigate effects of the Aug. 23 5.8-magnitude quake whose epicenter was only about 11 miles away from the company’s twin-reactor station in Mineral, Va.

A survey of 50 energy experts released on Tuesday by economists at The Brattle Group reveals that energy efficiency is likely to cause a drop of 5% to 15% in U.S. electricity consumption by the year 2020, relative to forecast trends. Electric peak demand is likely to drop by 7.5% to 15% and natural gas consumption is expected to drop by 5% to 10% compared to forecast trends.

A plan to build a controversial $4.7 billion coal-fired power plant in Scotland’s Ayrshire County that would have been fitted with experimental carbon capture and storage (CCS) technology was last week thrown out by the North Ayrshire Council, and citizens lodged more than 20,000 objections with the legislative body.

Without a bold change of policy direction, the world will lock itself into an insecure, inefficient, and high-carbon energy system, the International Energy Agency (IEA) warned as it launched the 2011 edition of the World Energy Outlook (WEO) today in London.

If the Senate votes on a measure this week to overturn the Cross-State Air Pollution Rule (CSAPR) using the Congressional Review Act, as has been spearheaded by Sen. Rand Paul (R-Ky.), President Obama would veto the resolution.

The Obama administration on Tuesday posted a notice on the White House Office of Management and Budget (OMB) website that indicates the Environmental Protection Agency (EPA) has filed a copy of proposed rules to limit greenhouse gas (GHG) emissions from new, modified, and existing power plants.

A new bill to extend compliance deadlines for the Cross-State Air Pollution Rule (CSAPR) and Utility Maximum Achievable Control Technology (MACT) rule was introduced in the U.S. Senate today by Senators Joe Manchin (D-W.Va.) and Dan Coats (R-Ind.).

Minnesota’s Next Generation Energy Act (NGEA) of 2007—a law that restricts carbon dioxide emissions produced by power generators who export electricity to the state—violates the Commerce Clause in the U.S. Constitution and interferes with North Dakota’s energy production, North Dakota argued in a lawsuit filed against Minnesota last week.

Black Hills Corp. will build and begin operating a natural gas–fired power plant in Wyoming and shutter three aging coal plants in the state by 2014 as part of a “future compliance” plan to meet growing power demand as federal environmental rules go into effect.

Several environmental groups have asked a federal appeals court to review the Environmental Protection Agency’s (EPA) decision to grant a Clean Air Act Prevention of Significant Deterioration (PSD) permit to the 600-MW gas-fired Avenal Energy Project proposed for construction in California’s San Joaquin Valley. The groups contend that the agency exempted the project from several key air pollution standards.

The collapse of a retaining bluff near We Energies’ coal-fired Oak Creek Power Plant on Monday morning sent debris, dredging equipment, and parts of a ravine filled with coal ash more than 50 years ago spewing into Lake Michigan.

The Nuclear Regulatory Commission (NRC) on Tuesday certified an amended version of the Advanced Boiling Water Reactor (ABWR), the third-generation reactor design offered separately by GE-Hitachi and Toshiba, which has been chosen for new nuclear builds at the South Texas Project (STP) site. The NRC’s decision means that nuclear developers in the U.S. can use the reactor in proposed projects.

GenOn’s coal-fired 400-MW Portland Generating Station in Pennsylvania’s Northampton County must significantly cut its sulfur dioxide (SO2) emissions with three years because they are adversely impacting air quality in Warren, Sussex, Morris, and Hunterdon counties in New Jersey, the U.S. Environmental Protection Agency (EPA) ruled on Monday as it granted its first-ever single source petition.

A fire that ignited in three of four steel coal bunkers at the 503-MW John Twitty Energy Center in Springfield, Mo., has sent three City Utilities (CU) of Springfield employees to the hospital for carbon monoxide poisoning. Investigation into what caused the fires is ongoing.

A new Energy Information Administration (EIA) report analyzing the economic impacts of a proposed national Clean Energy Standard (CES) projects that in 2035, a CES could increase power generation costs by almost 30% nationwide.

Beacon Power, a much-watched flywheel energy storage developer that last year received a $43 million loan guarantee from the Energy Department, on Sunday filed for bankruptcy to allow the company to operate its business “without interruption.”

Fresh concerns surfaced for Tokyo Electric Power Co. (TEPCO), the embattled owner of tsunami-hit Fukushima power plant, on Tuesday. TEPCO, which is struggling to bring reactors at the plant to cold shutdown by the end of the year, detected substances from a nuclide analysis of gas emitted from Daiichi 2 that showed a fission reaction had occurred.

Wärtsilä to Provide Rwanda with Engines for Lake Methane Power. Wärtsilä on Sept. 30 said it was awarded a contract by KivuWatt, a subsidiary of the New York–based international power company ContourGlobal, to supply a power plant to the Republic of Rwanda. The turnkey project is of particular significance because the power plant will utilize […]

The operating environment within a condenser is extremely harsh, and in spite of the designer’s best intentions, sometimes tubes made of the best materials fail. The most important tube failure mechanisms typically result from different forms of corrosion and erosion. When it’s time to select new condenser tube material, you’ll need to consider the projected operating environment and failure mechanisms that material will be subjected to.

As less is heard about the promise of new nuclear reactors in the U.S., more is being heard about the problems of the geriatric atomic set.

For seven years in a row, the number of new nuclear construction starts increased markedly. Then the accident at Japan’s Fukushima Daiichi plant occurred, prompting shutdowns of existing plants and a rethinking of future plans in many countries. Nevertheless, the International Atomic Energy Agency (IAEA) expects “continuous and significant growth” in the use of nuclear […]

Once the condenser tubes are designed, selected, and purchased, the final step in a retubing project is to remove the old tubes and install the new ones. The success of this project is very dependent upon attending to quality control, following proper procedures, using the right tools, and having a highly skilled workforce.

Losses attributed to condenser tube leaks, fouling, and failures continue to climb, costing the power generation industry an estimated half-billion dollars annually in maintenance costs and loss of production. Investing in an effective condenser maintenance program will reduce those expenses in short order.

Public power utilities depend upon access to capital at favorable rates. So the munis pay special attention when Wall Street rating agencies talk about tinkering with how they establish bond ratings for municipal utility projects. Thus, recent moves by Moody’s Investors Service has drawn some fire from public power.

In the May issue, we discussed the importance of either preventing copper plating of the high-pressure (HP) steam turbine rotor or finding a good foam or mechanical removal means of restoring lost efficiency. In that article we noted that “copper deposits typically form on the stationary nozzle block or first-stage stationary blades” and that those deposits usually result in a steam turbine loss of capacity at a rate of about 2 to 3 MW per month. We also stated that the “general rule of thumb is that there is a reduction of about 1 MW of generating capacity for each 1 to 2 pounds of deposit that accumulates on the HP turbine.

In the past few years, nuclear concerns, rising oil prices, and a growing understanding of our environmental impact has given energy issues a higher profile worldwide. In this report on the Continental Nordic countries, we look at the efforts being made in much of the Nordic region to secure a sustainable energy supply for the future and at the extent to which the innovative solutions of these countries can be exported around the globe.

Building on the success of the Fluegas 2700 combustion gas analyzer, the new SERVOTOUGH FluegasExact integrates Servomex’s unique Flowcube flow sensor technology to give users even more confidence in their combustion gas measurements. The analyzer features a patented zirconium oxide cell for oxygen measurement and a thick film catalytic sensor for measuring carbon monoxide (CO) […]

Understanding the reliability and failure mechanisms of photovoltaic modules is crucial to understanding how well they will perform over time. But today there are no test standards in place to judge this crucial issue.

This is the fourth in a series of predictive maintenance (PdM) articles that began in the April “Focus on O&M” with an introduction to PdM as a process whereby maintenance is performed based on the condition of the equipment rather than on a predetermined interval. In the May and July issues, we began exploring specific PdM techniques, such as motor-current signature analysis and oil analysis.