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Areva has cut a deal to provide fuel for five Exelon reactors starting in 2016. The contract announced Thursday covers 18 reloads – enough for three refueling cycles at the Dresden and Quad Cities plants in Illinois, plus six refueling cycles at Three Mile Island unit 1 in Pennsylvania. It also...

Following an unplanned shutdown and repairs three days earlier, unit 2 at Exelon's Byron nuclear plant returned to service Saturday. Operators tripped the reactor manually from full power Wednesday after losing water flow to its generator's stator cooling system, according to a report filed with...

In an interview with the Chicago Tribune, Exelon's CEO warned that continued subsidies for wind generation could affect power markets in ways that lead to the premature closure of nuclear plants. Exelon's Christopher Crane emphasized that the largest operator of power reactors in the country...

The Nuclear Regulatory Commission has notified Exelon of potential penalties following an investigation spanning more than two years into the utility's nuclear plant decommissioning funds. "Based upon the evidence developed, the investigation did substantiate that a senior Exelon executive and...

Extra Nuclear Regulatory Commission staff members are once again on-site at the Fort Calhoun nuclear plant to review a report that recently installed water pumps were improperly bolted down. In a release Monday, the NRC said it is investigating a condition reported in early December involving four raw...

Facing additional improvements mandated by the Nuclear Regulatory Commission, the owner of Nebraska's Fort Calhoun nuclear plant has pushed its scheduled restart into the first quarter of 2013. An Omaha Public Power District spokesman told Bloomberg that it will not make the previous restart target...

Exelon will weigh whether to decommission its Oyster Creek nuclear plant earlier than planned if its economics worsen between now and 2019. At that point the New Jersey reactor would be 50 years old and at the end of a 2010 agreement related to its cooling system that called for decommissioning 10 years...

On Tuesday the Nuclear Regulatory Commission began a special inspection at Exelon's Oyster Creek nuclear plant, where Sandy's storm surge caused an alert at its offline reactor. While the NRC emphasized the event posed no immediate safety concerns, Region 1 Administrator Bill Dean said in an...

High water from Hurricane Sandy prompted an alert at Exelon's Oyster Creek nuclear plant Monday night, while one unit at Entergy's Indian Point shut down and a total of ten plants along the Eastern Seaboard were under the watch of additional inspectors from the Nuclear Regulatory Commission....

Among the 2,200 temporary workers helping Exelon complete its maintenance outage at Byron's unit 1 reactor, 310 are working to refurbish its cooling tower. In addition to refueling, inspections and reactor maintenance, crews have been replacing 2,550 1-ton fill packs in the tower. That work began...

Three Mile Island unit 1 was out of service for repairs on Friday following a reactor trip the previous afternoon. A reactor coolant pump tripped at 2:16 p.m., Thursday, creating a flux-to-flow imbalance that caused the plant's safety systems to automatically shut down the reactor from full power...

Workers refueling Exelon's Peach Bottom unit 2 were exposed to low levels of radiation following a steam leak Tuesday. They had been disassembling the reactor head vent when steam escaped from a flange at about 1 a.m., according to a report filed with the Nuclear Regulatory Commission. Radiation...

Work began Monday on a refueling outage at Byron unit 1, bringing in a surge of temporary workers and beginning one of the most extensive maintenance efforts at the Illinois reactor in recent years. Roughly 2,200 temporary workers will join the 850 permanent workers employed at both units, according...

Exelon is halting efforts to gain initial federal regulatory approvals for new nuclear construction in Victoria County, Texas, the company announced yesterday. The company has notified the Nuclear Regulatory Commission that it will withdraw its Early Site Permit application for an 11,500-acre tract...

Loss of offsite power tripped the reactor at New Jersey's Oyster Creek nuclear plant early Monday morning. At 3:29 a.m., safety systems functioned as designed and automatically shut down the reactor from full power, according to an event report filed with the Nuclear Regulatory Commission. While...

Employees of Exelon Corporation were awarded the Nuclear Energy Institute’s Top Industry Practice (TIP) award yesterday in the Materials and Services category for their application of new, underwater laser scanning technology to obtain measurements within a BWR vessel at Quad Cities Generating...

Exelon Nuclear has claimed the Nuclear Energy Institute's Top Industry Practice (TIP) Award for innovation in the Maintenance Category following introduction of a fuel alignment measurement system at three generating stations: Byron, Braidwood and Three Mile Island. The core mapping technology developed...

Exelon Energy has completed upgrades at Byron Generating Station and resumed operations late Sunday night, according to a release. “Our team did a fantastic job of safely making robust upgrades to our facility that will ensure the safe and reliable operation of both units through the summer...

Exelon Corp and Constellation Energy Group have cleared the FERC's final regulatory hurdle and completed their merger, the companies said in a release. The deal, effective today, will allow Exelon, the largest U.S. operator of nuclear power plants 19,000 megawatts of nuclear power, to absorb Constellation's...

Some 2,000 temporary workers will soon be helping Exelon refuel and upgrade a reactor at its Quad Cities nuclear plant near Moline, Ill. Those hired represent a wide range of trades, including welders, pipefitters and millwrights, The Rock Island Argus reported. They will join about 900 permanent employees...

The Byron nuclear plant in Illinois ended an unusual event notification Wednesday night after restoring an off-site power source. Unit 1 operators reported a loss of off-site power just after 7 p.m. Tuesday to the Nuclear Regulatory Commission. Two emergency diesel generators started automatically, as...

The Nuclear Regulatory Commission has agreed to transfer plant licenses associated with the proposed merger of Exelon and Constellation Energy. The orders from the NRC, announced by the companies Thursday, are among that last regulatory approvals they need to close the deal. Constellation owns just over...

An electrical insulator in a switchyard may be to blame for a power outage and reactor trip at the Byron nuclear plant Monday. Unit 2 at the Illinois plant shut down from full power just after 11 a.m. when external power to the reactor was cut. Smoke was seen coming from a faulted station auxiliary transformer...

At a hearing to address a challenge to the environmental impact statement for a proposed third unit at Maryland’s Calvert Cliffs nuclear plant, staff from the Nuclear Regulatory Commission said renewable power sources would likely be unable to substitute the reactor’s power generation. At...

Exelon’s 2011 earnings met the company's expectations, executives said, thanks in part to strong performance from its fleet of 17 reactors. In a conference call Wednesday, chairman John W. Rowe said the firm’s nuclear operations achieved a capacity factor of 93.3 percent for the year...