A report by the U.S. Department of Homeland Security (DHS) Industrial Control Systems Cyber Emergence Response Team (ICS-CERT) reveals that infected USB drives spread common and sophisticated malware in the control systems at two power plants in separate incidents late last year.

An agreement reached between the Virginia Attorney General’s office, Dominion Virginia Power, and Appalachian Power proposes to reduce financial incentives associated with the utilities’ generation of renewables and construction of new fossil fuel–fired power plants.

Secretary of the Interior Ken Salazar is the latest key administration official who plans to step down after the beginning of President Barack Obama’s second term on Jan. 21.

More than 107 GW of operating capacity in the U.S. electric power market were bought and sold over 2012, mostly as a result of three large mergers or acquisitions, the Energy Information Administration (EIA) found in an analysis of power plant capacity purchases released on Wednesday.

A federal appeals court last week denied a motion from developers of new coal- and oil-fired power plants to force the Environmental Protection Agency (EPA) to finalize its reconsidered Mercury and Air Toxics Standards (MATS) for new sources by March and help them avoid a regulatory Catch-22 posed by a looming rule to curb greenhouse gas emissions in new plants.

The Nuclear Regulatory Commission (NRC) and the U.S. Army Corps of Engineers last week completed the final environmental impact statement (EIS) for the DTE Electric Co.’s proposed new Economic Simplified Boiling Water Reactor (ESBWR) at its Enrico Fermi Nuclear Plant.

The Electric Reliability Council of Texas (ERCOT), the grid operator that oversees 85% of Texas’ electric load, should consider additional potential solutions to address its worrisome resource adequacy and provide a plan outlining measures it will take to increase woefully low reserve margins, the North American Electric Reliability Corp. (NERC) said in a strongly worded letter last week.

A fire in the main transformer of the South Texas Project (STP) Electric Generating Station’s Unit 2 on Tuesday evening automatically tripped the reactor in Bay City, Texas, and powered on emergency diesel generators.

Two U.S. nuclear reactors that have long been idled—one for roughly two years and the other for three—may see even longer periods of shutdown, new reports suggest. Federal regulators said significant work remains before the Fort Calhoun nuclear power plant in Nebraska can be restarted, while Progress Energy Florida on Monday told the Florida Public Service Commission (PSC) that it was a week away from submitting a draft report evaluating repair options for its Crystal River reactor.

Georgia Power on Monday said it was seeking state regulatory permission to decertify and retire 15 coal- and oil-fired generating units—a total capacity of 2,061 MW—citing several factors, including costs to comply with existing and future environmental regulations, economic conditions, and lower natural gas prices.