POWER

It is clear that energy use will expand in the future as our population and society’s standard of living increase. Meanwhile, the push toward a sustainable lifestyle requires that all resources be utilized efficiently and sparingly. The National Academy of Sciences has identified paradigm shifts from current processes to an ideal vision centered on renewable energy and an atom economy—defined as maximum incorporation of starting materials into final products. These seemingly disparate paths converge if one considers energy production from municipal solid waste (MSW).

An "emergency war supplemental" appropriation bill that Congress was considering at this writing has implications for the power industry: The measure includes $9 billion each for new loan guarantees for nuclear power and renewable energy projects.

Cap-and-trade programs are featured in at least two U.S. legislative proposals to reduce carbon emissions, usually by around 80% by 2050 using a 2005 baseline. The benefits that accrue from the immense investment required to reach these goals are nebulous and don’t occur until decades after the investment. Based on my back-of-the-envelope analysis, the cost-benefit ratio of these proposals does not pass a cursory cost-benefit analysis.

Circulating fluid bed (CFB) dry scrubbing technologies provide distinct advantages over conventional spray dryer absorber scrubbers for removing SO₂ from flue gases. The CFB also competes well against wet limestone flue gas desulfurization processes typically favored for large boilers firing high-sulfur coals. With high SO₂ removal rates in a dry treatment process, the CFB scrubber appears to be the best of both technologies: a water-stingy scrubber with high SO₂ removal rates.

The U.S. Environmental Protection Agency is expected to propose an emissions standard for mercury and other hazardous air pollutants emitted by coal- and oil-fired electric generating units in March of 2011. The anticipated rule would require emission control to meet the various standards using maximum achievable control technology, as determined by the prescriptive requirements of the Clean Air Act. In response to the expected rule-making, utilities will be required to make technology decisions in order to ensure compliance. One cost-effective approach to compliance may be the use of “co-benefits” from air quality control systems (AQCSs) already in service that are designed to remove other pollutants.

A recent survey finds utility regulators contradicting themselves on the touchy subject of nuclear power. They say they like new nukes, but their actions belie their stated beliefs.

American Electric Power’s (AEP’s) Cardinal Power Plant Unit 3 cooling tower in Brilliant, Ohio, was coated and lined in the spring of 2008 by a team of coatings professionals that included the plant’s project and coatings engineering staff, Sherwin-Williams (coatings supplier), Cannon Sline Industrial (contractor), and OTB Technologies (third-party inspector). The team completed the project in just 11 weeks through damp springtime conditions in the Ohio River Valley.

When it is completed, later this summer, the UK’s Drax Power Station biomass facility will become the largest dedicated cofiring project of its kind in the world. As U.S. coal-fired generators come under increasing pressure to cut emissions and take advantage of incentives to promote power generation from renewables, Drax offers an example of what is possible.

The Energy Department’s failure to recognize an impending supply squeeze for helium-3—a nonradioactive gas produced in the agency’s nuclear weapons complex—has created a national crisis requiring White House intervention and threatening key U.S. nuclear and homeland security programs, a wide range of medical and scientific research activities and development of U.S. oil and natural gas resources, according to testimony before a House subcommittee.

In April, Solvay Chemicals Inc. commissioned a new facility that uses an innovative process to recover and transform sodium carbonate waste streams into a market-grade sodium bicarbonate used in air emissions control.

Fogging systems have been successfully used in the material-handling industry for more than 30 years to control explosive dust at transfer points. Today, fogging systems are an EPA Best Demonstrated Technology for subbituminous coal preparation plants.

Does wasted work time equal job dissatisfaction? Two studies point in that direction.

Safety is the imperative for any construction project, and Duke Energy’s 630-MW Edwardsport integrated gasification combined-cycle station in Knox Country, Ind., is no exception.

Today’s coal-fired power plants face the twin challenges of improving their wet flue gas desulfurization (FGD) systems’ emission control capabilities in order to comply with environmental regulations while at the same time cutting their operational and maintenance costs. Smart strategies for retrofitting existing FGD systems can help plant personnel meet both of these objectives.

Clipper Windpower didn’t have the luxury of a decade or more of product development. Instead, it started big—with a 2.5-MW wind turbine. Here’s the story of how they did it.

Abengoa Solar in early May began commercial operation of Solnova 1, the company’s first 50-MW parabolic trough plant. Covering 980,000 square feet with mirrors requiring an area totaling 280 acres (Figure 2), it is one of five planned concentrating solar power (CSP) plants to be built at the Solúcar Platform in Spain. All will use a technology developed by Abengoa with experience gained from a trough pilot built in 2007. Solnova 1 will also be equipped to burn natural gas if sunlight is weak.

At the opening ELECTRIC POWER 2010 plenary session, both the keynote speaker’s address and discussion among the Power Industry Executive Roundtable participants pointed to the renewed appeal of natural gas and proposed cap-and-trade legislation as being potential game-changers for the U.S. power industry.

With some industries reeling in today’s economy, future revenue growth is still uncertain in certain markets. The bright exception is the "new energy" arena of renewables and sustainables. But that’s a tough market, with lots of competitors for the business and lots of opportunities to misfire and miss the boat. A key to success is bidding smartly on contract opportunities. Otherwise, don’t bid at all.

An Australian sewage plant this April began using treated wastewater falling down a 60-meter (m) shaft to produce its own power.

There is a certain tentativeness about new nuclear power in the U.S. these days, a low-grade anxiety, as demonstrated by the comments made by electric utility representatives at May’s ELECTRIC POWER Conference in Baltimore.

The recently unveiled Kerry-Lieberman global climate warming bill is an exercise in triviality. By century’s end, reducing U.S. greenhouse gas emissions by 83% will only result in global temperatures being one-fifth of one degree Fahrenheit less than they would otherwise be. That is a scientifically meaningless reduction.

The gas-rich emirate of Qatar, holder the world’s third-largest gas reserves, inaugurated another massive 2,000-MW gas power plant in the industrial city of Mesaieed, south of the capital Doha this May.

The 2010 Powder River Basin Users’ Group (PRBCUG) commemorated its 10th anniversary with 354 registered members (210 of whom were from operating companies) for its three-and-a-half-day annual meeting in Baltimore this May. The meeting’s Grand Sponsor was Benetech and its Plant Professionals group.

Cape Wind was a momentous clean energy victory, but if climate change advocates truly take the immense scale of the energy and climate challenge seriously, we must ensure that this is the last time that a new zero-carbon energy source faces such prolonged NIMBY opposition

While Europe’s offshore wind sector has taken off, interest is resurging in marine energy. The UK’s Crown Estate took the major step this March, for example, of awarding leasing rights to 10 wave power projects to develop generation in Scotland’s Pentland Firth and Orkney waters of the North Sea.

As U.S. utilities increase the percentage of renewable energy in their generation portfolio, they must deal with a number of key issues related to selecting specific technologies. Additionally, they must figure out what it will take to make renewables emerge as a mainstream generating option in the future.

A three-judge panel at the Nuclear Regulatory Commission (NRC) on Tuesday unanimously denied a motion by the U.S Department of Energy to withdraw its 17-volume, 8,600-page license application to build a nuclear waste repository at Yucca Mountain, Nev. The withdrawal is illegal because it supersedes the Energy Department’s authority under the Nuclear Waste Policy Act (NWPA) of 1982, the judges said.

The Arkansas Supreme Court on Thursday declined to reconsider a ruling that voided a permit to build the John W. Turk., Jr. power plant—the nation’s first ultrasupercritical pulverized coal power plant. Southwestern Electric Power Co. (SWEPCO) now says it will continue construction of the plant that is 28% complete under an option to sell power in other markets.

President Obama’s meeting with 23 senators of both parties at the White House on Tuesday appears not to have moved either side on comprehensive energy and climate legislation. But from various reports, a new bill being drafted by Sen. Jeff Bingaman (D-N.M.), which seeks to limit a cap-and-trade program to just the utility sector, seems to gaining traction in Washington.

Sen. Lisa Murkowski (R-Alaska) last week introduced legislation to promote the domestic production of rare earth elements—metals and their compounds that are used in high-temperature superconducting technologies, windmills, and battery technologies. China currently controls a majority of that market.