Exelon Nuclear Generating Station Sets National Mark, Another Places Second

Apr 23, 2001, 01:00 ET from Exelon Nuclear

    DOWNERS GROVE, Ill., April 23 /PRNewswire Interactive Release/ -- Exelon
 Nuclear's Limerick Generating Station Unit 2 in Pennsylvania set a national
 refueling efficiency record over the weekend.  Almost simultaneously, the
 Byron Generating Station Unit 2 in Illinois completed the second shortest
 refueling ever recorded in the U.S.
     The two refueling outages reaffirm Exelon Nuclear's position as the U.S.
 nuclear industry leader in refueling performance.  Exelon Nuclear generating
 stations have conducted the four shortest refueling outages in U.S. history.
     Limerick Unit 2, about 21 miles northwest of Philadelphia set the national
 mark for the shortest refueling of a boiling water reactor at 16 days, 8
 hours.  Limerick began refueling on April 4 and returned to service Friday
 evening, beating the existing BWR record set last year by a sister Exelon
 Nuclear plant, the Dresden Generating Station in Illinois.
     At Byron, workers completed the Unit 2 refueling in 15 days, 18 hours,
 less than two hours off the overall U.S. record set by yet another Exelon
 Nuclear station, the Braidwood Generating Station.  Operators shut down Unit
 2, a pressurized water reactor, on April 7 to perform maintenance and replace
 fuel.  The unit began producing electricity again Sunday.  The station is
 about 90 miles west of Chicago.
     By way of comparison, the national average for nuclear plant refueling
 duration in 2000 was 38 days.  Exelon Nuclear's fleet-wide average last year
 was 22 days.  The company operates 17 nuclear generating units at 10 locations
 in Illinois, Pennsylvania and New Jersey.
     Refueling efficiency is a key industry performance measure.  The shorter a
 refueling outage, the more power generated for businesses and consumers.
 Refueling outages also are important periods for performing required
 maintenance and improving the material condition of the plants.
     Both of the newly refueled units are expected to be at full power by
 mid-week.  Byron Unit 2 will run for 18 months before its next refueling,
 Limerick Unit 2 for 24 months.
     In addition to refueling the reactors, Exelon Nuclear workers performed
 extensive inspections, tests, maintenance and modifications on a variety of
 components and equipment.  The work will help ensure that the plants operate
 reliably during the summer months, when demand for power is at its highest.
     The Byron station also completed work to increase power output by 5
 percent in time for rising summer energy demands.  That and similar work
 performed last fall on Byron's other unit will enable the station to generate
 an additional 120 megawatts of power -- enough energy to meet the needs of
 about 120,000 residential customers, or the equivalent of a small
 combined-cycle gas turbine generating unit.
     "Exelon Nuclear intends to do its part to keep the lights on this summer,"
 said Oliver D. Kingsley, Jr., president and chief nuclear officer of Exelon
 Nuclear.  "These nuclear plants are particularly reliable in the kinds of
 weather extremes that we sometimes see in the Midwest and mid-Atlantic regions
 in the summer.
     "The people at these two stations have done a superb job of planning and
 completing these refueling outages and doing all the required work necessary
 to ensure that reliability," Kingsley said.
     Key contractors supporting the Limerick refueling General Electric,
 Bechtel Inc., Sargeant & Lundy Inc., Hake Inc., The Washington Group and Day
 and Zimmerman NPS Inc.  Contractors playing critical support roles at Byron
 were Westinghouse LLC, Siemens-Westinghouse Power Corporation and
 Newberg-Perini/Stone & Webster, The Venture.
     The Limerick Generating Station has two 1,200-megawatt boiling water
 reactors.  Unit 1 began commercial operation in February 1986.  Unit 2, the
 last boiling water reactor to be built in the U.S. began producing electricity
 commercially in January 1990.
     The Byron Generating Station has two 1,200-megawatt pressurized water
 reactors.  Unit 1 began commercial operation in September 1985 and Unit 2 in
 August 1987.
     Each station generates enough electricity to meet the demands of about
 2.4 million households.
 
     Exelon Corporation (NYSE:   EXC) is one of the nation's largest electric
 utilities with approximately five million customers and more than $15 billion
 in annual revenues.  The company has one of the industry's largest portfolios
 of electricity generation capacity, with a nationwide reach and strong
 positions in the Midwest and Mid-Atlantic.  Exelon distributes electricity to
 approximately five million customers in Illinois and Pennsylvania and gas to
 425,000 customers in the Philadelphia area.  The company also has holdings in
 such competitive businesses as energy, infrastructure services and energy
 services.  Exelon is headquartered in Chicago and trades on the NYSE under the
 ticker EXC.
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X71538043
 
 

SOURCE Exelon Nuclear
    DOWNERS GROVE, Ill., April 23 /PRNewswire Interactive Release/ -- Exelon
 Nuclear's Limerick Generating Station Unit 2 in Pennsylvania set a national
 refueling efficiency record over the weekend.  Almost simultaneously, the
 Byron Generating Station Unit 2 in Illinois completed the second shortest
 refueling ever recorded in the U.S.
     The two refueling outages reaffirm Exelon Nuclear's position as the U.S.
 nuclear industry leader in refueling performance.  Exelon Nuclear generating
 stations have conducted the four shortest refueling outages in U.S. history.
     Limerick Unit 2, about 21 miles northwest of Philadelphia set the national
 mark for the shortest refueling of a boiling water reactor at 16 days, 8
 hours.  Limerick began refueling on April 4 and returned to service Friday
 evening, beating the existing BWR record set last year by a sister Exelon
 Nuclear plant, the Dresden Generating Station in Illinois.
     At Byron, workers completed the Unit 2 refueling in 15 days, 18 hours,
 less than two hours off the overall U.S. record set by yet another Exelon
 Nuclear station, the Braidwood Generating Station.  Operators shut down Unit
 2, a pressurized water reactor, on April 7 to perform maintenance and replace
 fuel.  The unit began producing electricity again Sunday.  The station is
 about 90 miles west of Chicago.
     By way of comparison, the national average for nuclear plant refueling
 duration in 2000 was 38 days.  Exelon Nuclear's fleet-wide average last year
 was 22 days.  The company operates 17 nuclear generating units at 10 locations
 in Illinois, Pennsylvania and New Jersey.
     Refueling efficiency is a key industry performance measure.  The shorter a
 refueling outage, the more power generated for businesses and consumers.
 Refueling outages also are important periods for performing required
 maintenance and improving the material condition of the plants.
     Both of the newly refueled units are expected to be at full power by
 mid-week.  Byron Unit 2 will run for 18 months before its next refueling,
 Limerick Unit 2 for 24 months.
     In addition to refueling the reactors, Exelon Nuclear workers performed
 extensive inspections, tests, maintenance and modifications on a variety of
 components and equipment.  The work will help ensure that the plants operate
 reliably during the summer months, when demand for power is at its highest.
     The Byron station also completed work to increase power output by 5
 percent in time for rising summer energy demands.  That and similar work
 performed last fall on Byron's other unit will enable the station to generate
 an additional 120 megawatts of power -- enough energy to meet the needs of
 about 120,000 residential customers, or the equivalent of a small
 combined-cycle gas turbine generating unit.
     "Exelon Nuclear intends to do its part to keep the lights on this summer,"
 said Oliver D. Kingsley, Jr., president and chief nuclear officer of Exelon
 Nuclear.  "These nuclear plants are particularly reliable in the kinds of
 weather extremes that we sometimes see in the Midwest and mid-Atlantic regions
 in the summer.
     "The people at these two stations have done a superb job of planning and
 completing these refueling outages and doing all the required work necessary
 to ensure that reliability," Kingsley said.
     Key contractors supporting the Limerick refueling General Electric,
 Bechtel Inc., Sargeant & Lundy Inc., Hake Inc., The Washington Group and Day
 and Zimmerman NPS Inc.  Contractors playing critical support roles at Byron
 were Westinghouse LLC, Siemens-Westinghouse Power Corporation and
 Newberg-Perini/Stone & Webster, The Venture.
     The Limerick Generating Station has two 1,200-megawatt boiling water
 reactors.  Unit 1 began commercial operation in February 1986.  Unit 2, the
 last boiling water reactor to be built in the U.S. began producing electricity
 commercially in January 1990.
     The Byron Generating Station has two 1,200-megawatt pressurized water
 reactors.  Unit 1 began commercial operation in September 1985 and Unit 2 in
 August 1987.
     Each station generates enough electricity to meet the demands of about
 2.4 million households.
 
     Exelon Corporation (NYSE:   EXC) is one of the nation's largest electric
 utilities with approximately five million customers and more than $15 billion
 in annual revenues.  The company has one of the industry's largest portfolios
 of electricity generation capacity, with a nationwide reach and strong
 positions in the Midwest and Mid-Atlantic.  Exelon distributes electricity to
 approximately five million customers in Illinois and Pennsylvania and gas to
 425,000 customers in the Philadelphia area.  The company also has holdings in
 such competitive businesses as energy, infrastructure services and energy
 services.  Exelon is headquartered in Chicago and trades on the NYSE under the
 ticker EXC.
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X71538043
 
 SOURCE  Exelon Nuclear