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A federal appeals court on Tuesday reversed a May 2008 jury verdict finding that Cinergy Corp.—which merged with Duke Energy in 2006—violated New Source Review provisions of the Clean Air Act when it performed certain work on its coal-fired boiler units at several of its Indiana facilities without first obtaining a permit. The ruling allows Duke Energy to restart three Indiana coal-fired units that it had been ordered to shut down.

Solar installations in the U.S.—both photovoltaic and concentrating solar power (CSP) installations—grew 114% in 2009, and by the year’s end, they could surpass 1 GW, a new report from the Solar Energy Industries Association (SEIA) says.

The Environmental Protection Agency (EPA) last week proposed requiring the Four Corners Power Plant near Farmington, N.M., to install and operate selective catalytic reduction (SCR) controls on all five of the 2,040-MW coal-fired facility’s units. The measure would cut the plant’s nitrogen oxide (NOx) and particulate matter emissions by nearly 80%, the agency said.

The Environmental Protection Agency (EPA) has issued a notice of violation to Portland Gas and Electric (PGE), alleging that the company’s coal-fired Boardman facility in Oregon violated the Clean Air Act, including New Source Performance Standards and operating permit requirements.

The Department of Energy (DOE) last week announced a conditional commitment to provide a partial guarantee for a $1.3 billion loan to the Caithness Shepherds Flat wind project, an 845-MW wind farm planned for eastern Oregon that it is calling “the world’s largest wind farm.”

The National Institute of Standards and Technology (NIST), an arm of the Commerce Department designated by Congress to coordinate development of communication protocols, last week told the Federal Energy Regulatory Commission (FERC) it had identified five “foundational” sets of standards for smart grid interoperability and cybersecurity.

The Environmental Protection Agency is expected to select its approach for future regulations regarding coal ash storage later this year. One option would be to continue classifying the waste as nonhazardous and leave enforcement with the states. Another option—the worst case for the power industry—would be a determination that coal ash is a hazardous waste, which would result in increased federal oversight and lawsuits.

The U.S. electric utility sector is undergoing a transformation unparalleled in its history. Extraordinary challenges, driven by the urgency of climate change and other market forces, are compelling the industry to abandon its century-old business model of building large, fossil fuel plants to sell increasing amounts of electricity.

In recent months, two noteworthy letters have been sent to Congress by eminent scientists examining the merits—or demerits—of biofuels in the climate debate.

If you want the most accurate test results, it’s worth the extra effort to take isokinetic coal samples from coal pipes when collecting fuel and air measurements. Together, the data collected will allow more accurate balancing of coal pipes, measure fuel fineness, and improve the combustion efficiency of your steam generator.