POWERnews

PJM Interconnection on Sunday began operational control of the transmission systems of Duke Energy Ohio and Duke Energy Kentucky, both subsidiaries of Duke Energy, and began administering open, competitive wholesale electricity markets in those areas, the regional grid operator said on Jan 1.

The U.S. Court of Appeals for the District of Columbia Circuit temporarily blocked the Cross-State Air Pollution Rule (CSAPR) just two days before it was set to go into effect. The federal court ordered the Environmental Protection Agency (EPA) to continue administering the previously promulgated Clean Air Interstate Rule (CAIR) until a final decision can be made on the merits of the rule, likely this summer or fall.

An AES Corp. subsidiary that owns more than 1,000 MW of coal-fired capacity at six facilities in New York last week filed for Chapter 11 bankruptcy protection, citing falling power prices and heightened costs from compliance with environmental regulations.

The Massachusetts Supreme Judicial Court (SJC) last week upheld a decision by the state’s Department of Public Utilities (DPU) that a Power Purchase Agreement (PPA) between Cape Wind and utility National Grid would be a cost-effective use of ratepayer money. The decision means Cape Wind is closer to building North America’s first offshore wind farm.

Reaching a major milestone, the Nuclear Regulatory Commission (NRC) on Thursday granted a final Design Certification Amendment to Westinghouse’s AP1000 pressurized water reactor design, paving the way for utilities in the U.S. to build nuclear plants using the third-generation reactor design.

The Environmental Protection Agency’s (EPA’s) issuance of its final Mercury and Air Toxics Standards (MATS)—a rule that will mandate all coal- and oil-fired power generating units limit emissions of heavy metals and acid gases using “maximum achievable control technology” (MACT)—last week provoked a range of reactions, including renewed concerns about its costs and impact on grid reliability.

In a key settlement that will resolve all environmentally based legal challenges against its 600-MW ultrasupercritical John W. Turk Jr. power plant under construction near Texarkana, Ark., Southwestern Electric Power Co. (SWEPCO) on Thursday agreed to several conditions, including phasing out a 528-MW coal-fired unit in Texas, building 400 MW of renewable power, and limiting new transmission lines in natural areas.

Exelon Corp. and Constellation Energy Group must sell three electricity generating plants in Maryland before the companies can proceed with their proposed $7.9 billion merger to level competition for wholesale electricity in the mid-Atlantic region, the U.S. Department of Justice (DOJ) said last week.

A report released on Thursday by the Department of Energy (DOE) examining the role that rare earth metals play in the manufacture of wind turbines, electric vehicles, and photovoltaic (PV) thin-film solar cells finds that these clean energy technologies may see supply disruptions for five rare earth metals (dysprosium, neodymium, terbium, europium, and yttrium) in the short term, though risks will generally decrease in the medium and long term.

The Federal Energy Regulatory Commission (FERC) stunned officials of Duke Energy and Progress Energy on Thursday when it refused to unconditionally approve a $13.7 billion merger deal of the two companies that would have created the largest U.S. electric utility. The regulatory body cited concerns about the merger’s impact on power markets in North and South Carolina—where both companies are based—for its decision.