Hope Creek Nuclear Unit Declares Unusual Event Due to Freon Leak in an HVAC Unit in Security Center No Injuries, No Release of Radiation, and No Impact on Security LOWER ALLOWAYS CREEK, N.J., Oct. 28 /PRNewswire-FirstCall/ -- PSEG Nuclear said today that an unusual event was declared today at its Hope Creek generating station. The unusual event occurred at 10:03 a.m. due to a freon leak in an HVAC unit in the station security center. The leak resulted in restricted access to the second floor. Anytime access restrictions that impact routine plant operations are caused by an uncontrolled toxic gas release, the requirements for an unusual event are met. The unusual event was terminated at 1:16 p.m. Hope Creek has been shut down for refueling and maintenance. However, no maintenance was being performed when the chiller failed, and no personnel were in the area. No injuries resulted, and there was no release of radiation related to the event. Also, there was no impact on security. The HVAC unit is located on the second floor in a ventilation room that is normally secured. When the freon leak occurred, it activated the smoke detector in the ventilation room, which prompted the control room to contact fire protection to investigate. Fire protection responded and identified the cause to be the freon leak. Fire protection personnel proceeded to limit access to the area, isolated power to the chiller that ended the leak, and monitored the remainder of the area to ensure personnel safety. Shortly after the incident, fire protection confirmed the freon had dissipated and the work environment was safe to enter. Access restrictions have been lifted and a team will now determine the cause of the leak and commence repairs. Overall plant security was not impacted by the unusual event. All local, state and federal agencies were notified. FORWARD-LOOKING STATEMENT Readers are cautioned that statements contained in this press release about our and our subsidiaries' future performance, including future revenues, earnings, strategies, prospects and all other statements that are not purely historical, are forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. Although we believe that our expectations are based on reasonable assumptions, we can give no assurance they will be achieved. The results or events predicted in these statements may differ materially from actual results or events. Factors which could cause results or events to differ from current expectations include, among other things: the effects of weather; the performance of generating units and transmission systems; the availability and prices for oil, gas, coal, nuclear fuel, capacity and electricity; changes in the markets for electricity and other energy-related commodities; changes in the number of participants and the risk profile of such participants in the energy marketing and trading business; the effectiveness of our risk management and internal controls systems; the effects of regulatory decisions and changes in law; changes in competition in the markets we serve; the ability to recover regulatory assets and other potential stranded costs; the outcomes of litigation and regulatory proceedings or inquiries; the timing and success of efforts to develop domestic and international power projects; conditions of the capital markets and equity markets; advances in technology; changes in accounting standards; changes in interest rates and in financial and foreign currency markets generally; the economic and political climate and growth in the areas in which we conduct our activities; and changes in corporate strategies. For further information, please refer to our Annual Report on Form 10-K and subsequent reports on Form 10-Q and Form 8-K filed with the Securities and Exchange Commission. These documents address in further detail our business, industry issues and other factors that could cause actual results to differ materially from those indicated in this release. In addition, any forward-looking statements included herein represent our estimates only as of today and should not be relied upon as representing our estimates as of any subsequent date. While we may elect to update forward-looking statements from time to time, we specifically disclaim any obligation to do so, even if our estimates change, unless otherwise required by applicable securities laws. DATASOURCE: PSEG CONTACT: Skip Sindoni, +1-856-339-1111, for PSEG Web site: http://www.pseg.com/

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