POWERnews

Hurricane Isaac soaked the Gulf Coast of Louisiana and Mississippi after making landfall Tuesday night with sustained winds of up to 80 mph, leaving thousands without power in five states. On Tuesday, Entergy took its Waterford 3 nuclear plant offline as a precautionary measure.

Omaha Public Power District (OPPD) has postponed restart of its troubled 478-MW Fort Calhoun nuclear plant for the third time since it was shut down 16 months ago. Restart of the reactor, located 19 miles north of Omaha, Neb., requires regulatory approval, and that is now tentatively anticipated early next year.

In a landmark ruling that has been seen as a major victory for thermal generators, the U.S. Court of Appeals for the District of Columbia Circuit on Tuesday vacated the Environmental Protection Agency’s (EPA’s) Cross-State Air Pollution Rule (CSAPR), finding that it violated federal law. The EPA must now continue implementation of the Clean Air Interstate Rule (CAIR) until it can promulgate a replacement, which likely will not happen until at least 2014, industry analysts said.

The U.S. Department of Homeland Security (DHS) on Tuesday issued an alert warning that industrial Ethernet switches and other devices made by network equipment manufacturer RuggedCom and widely used by power companies could be vulnerable to compromise.

The Federal Energy Regulatory Commission (FERC) on Tuesday approved a full build-out of a 1.5-MW gird-connected wave power station that is planned by Ocean Power Technologies’ (OPT’s) Oregon subsidiary Reedsport OPT Wave Park. The license is the first issued for a wave power station in the nation.

Canada’s nuclear regulator on Friday issued a 10-year nuclear power reactor site preparation license to Ontario Power Generation’s (OPG’s) proposed reactor at its Darlington nuclear site in Ontario. The license, described as "an important milestone in Canada’s nuclear history," is the first of its kind in nearly 25 years.

Four rules recently proposed or finalized by the Environmental Protection Agency (EPA) could prompt power companies to retrofit most coal-fired generating units and retire 2% to 12% of coal-fired capacity. The rules would also likely increase power prices in some regions, though they may not cause widespread reliability concerns, a new report by the Government Accountability Office (GAO) suggests.

The California Air Resources Board (CARB) on Thursday said it would suspend, for 18 months, enforcement of part of its carbon trading rule as it applies to electricity imported to the state. The measure would help avoid a "negative" impact on energy supplies and reliability for the power-strapped state, the state air regulator said.

Implementation of a new federal nuclear spent fuel–handling program starting in 2020 to remove 6,000 metric tons of uranium (MTU) per year for 10 years and 3,000 MTU per year thereafter could allow for full decommissioning of U.S. sites awaiting fuel removal. It would also enable retirement of all private Independent Spent Fuel Storage Installations by 2030, and achieve approximately a 10% reduction in average wet pool density, a new study from consulting firm The Brattle Group suggests.

As warmer-than-average waters in Connecticut’s Long Island Sound last week prompted Dominion to shut down one unit at its Millstone Nuclear Plant, an ammonia release caused an evacuation of part of Tennessee Valley Authority’s Watts Bar Unit 1, and Constellation Energy shut down of its Calvert Cliffs Unit 1 reactor after a control rod unexpectedly dropped into the reactor’s core. Then, on Tuesday, Xcel Energy shut down its Monticello Nuclear Generating Plant and Unit 1 of its Prairie Island Nuclear Generating Plant for repairs.