Peco Energy & Unicom Logo placed on this slide The Creation of a Preeminent National Energy Company ================================================================================ September 24, 1999 Safe Harbor This presentation contains certain forward-looking statements within the meaning of the safe-harbor provisions of the Securities Exchange Act of 1934; these forward-looking statements are subject to various risks and uncertainties. The factors that could cause actual results to differ materially from the projections, forecasts, estimates and expectations discussed herein may include factors that are beyond the companies' ability to control or estimate precisely, such as estimates of future market conditions, the behavior of other market participants and the actions of the Federal and State regulators. Other factors include, but are not limited to, actions in the financial markets, weather conditions, economic conditions in the two companies' service territories, fluctuations in energy-related commodity prices, conversion activity, other marketing efforts and other uncertainties. Other risk factors are detailed from time to time in the two companies' SEC reports. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this presentation, September 24, 1999. The companies do not undertake any obligation to publicly release any revisions to these forward- looking statements to reflect events or circumstances after the date of this presentation. Corbin A. McNeill, Jr. Chairman, CEO and President PECO Energy Company John W. Rowe Chairman, CEO and President Unicom Corporation Michael J. Egan Chief Financial Officer; PECO Energy Company Chief Integration Officer Agenda . Strategic Overview . The New Company . Growth Opportunities of Merger . Terms of the Deal . Financial Benefits . Vision for Future Our Shared Vision Common Ground . Pursuing bold strategies that capitalize on competitive growth opportunities . Thriving in early deregulated environments . Building shareholder value for the long term . Repurchasing stock Our Shared Vision Common Goals . Accelerating and enhancing our competitive growth strategy . Adding to near-term earnings . Achieving a higher earnings growth rate . Re-deploying capital with a focus on increased returns Delivering On Our Goals Transaction is immediately accretive 9-10% expected annual growth in EPS $1.5B in capital returned to shareholders immediately A Compelling Combination Creates a preeminent national energy company . National Generation / Marketing Portfolio . Largest Nuclear Generation Fleet with 21 plants Achieves a multi-regional distribution platform . Largest retail electric utility customer base . Positioned for further regional consolidation Financial scale and resources to execute strategy A Strategic Fit Distribution Generation Focus Focus UNICOM PECO ENERGY(R) WITH... WITH... 9,400 MW CAPACITY 1.5 MILLION CUSTOMERS Two Complementary Strategies ONE POWERFUL COMPANY Creating a Growth Platform Slide 11 Map of U.S. in background Chicago Unicom Logo GWh Sales: 100,000 MWs: 9,400 Customers: 3.5MM Revenues: $7.2 B Market Cap: $8.1 B Philadelphia Peco Energy(R) Logo GWh Sales: 74,000 MWs: 13,100 Customers: 1.5MM Revenues: $5.2 B Market Cap: $7.1 B [Combined companies] GWh Sales: 174,000 MWs: 22,500 Customers: 5.0MM Revenues: $12.4 B Market Cap: $15.2 B The Generation Story Accelerating our national growth strategy . Focus on nuclear operational excellence . Leverage best practices and operating capabilities . Capture synergies in operations and supply management . Continue disciplined acquisition program Top 20 U.S. Electric Generators Slide 13 Bar Chart Gigawatts 45 40 35 30 25 20 15 10 5 0 [Ranked in descending order of generating capacity in gigawatts] AEP / CSR 38.6 Southern Company 37.9 Entergy 23.2 PECO / Unicom Combined * 22.5 FPL Group 21.6 Texas Utilities 21.1 Duke Energy 20.8 NSP / NCE 19.8 Dominion Resources 19.4 Edison International 18.3 Reliant Energy 17.4 PECO Energy* 13.1 FirstEnergy 11.8 Ameren 11.4 Cinergy 11.2 Public Service Enterprise Group 11.1 DTE Energy 10.3 Carolina Power & Light 10 Unicom 9.4 CMS Energy 9 Allegheny Energy 8.1 Asset-Based Power Marketing Extend scale and scope of proven wholesale marketing and trading strategy . Exploit physical reach of combined portfolio . Broaden portfolio of custom products . Enhance position as preferred counter-party . Balance portfolio through contract positions Distribution Distribution network serving 5MM customers . Committed to reliability and customer satisfaction . Sharing of best practices and systems . Capture synergies Grow through strategic acquisitions Top 20 U.S. Electric Distribution Companies Slide 16 Bar Chart Customers (millions) 5.0 4.0 3.0 2.0 1.0 0 [Ranked in descending order by number of customers (000 omitted)] PECO / Unicom Combined 4,948 AEP / CSR 4,680 PG&E 4,600 Edison International 4,270 Southern Company 3,794 FPL Group 3,700 Unicom 3,455 Consolidated Edison 3,305 NSP / NCE 3,059 Entergy 2,500 Texas Utilities 2,500 FirstEnergy 2,167 DTE Energy 2,068 Duke Energy 2,000 Dominion Resources 2,000 Public Service Enterprise Group 1,900 CMS Energy 1,640 Reliant Energy 1,600 PECO Energy 1,493 Ameren 1,479 Allegheny Energy 1,418 Related Growth Opportunities Broad and complementary portfolios Flexibility to respond to market opportunities Portfolio focus . Infrastructure services . Energy solutions . Telecommunications Terms of the Deal Merger of Equals Stock for stock exchange ratio . 1:1 for PECO Energy . 0.95:1 for Unicom Purchase accounting . Annual Goodwill ~ $70MM $1.69 anticipated annual dividend $1.5B Dual Cash Election Dual Cash Election PECO Unicom Pre-Closing shares outstanding (est.) 182.4MM 191.3MM Cash Election $750MM to PECO Shares (16.7MM) $750MM to Unicom Shares (17.5MM) ------- ------- Shares Remaining 165.7MM 173.8MM Share Exchange 1:1 PECO Shares 165.7MM 0.95:1 Unicom Shares 165.1MM Total Shares Outstanding 330.8MM Cost Savings Annual savings . $100MM year one . Over $180MM year three 60% Regulated 40% Unregulated Slide 20 3-color Pie Chart depicting allocation of savings as follows: 50% Labor 35% Corporate & Administrative Programs 15% Fuel & Purchasing Revenue Enhancements Power Marketing . Enhanced margins on integrated portfolio . Improved transmission efficiency Non-regulated growth opportunities . Leverage infrastructure services over broader customer base . Capitalize on telecom (fiber) opportunities . Energy Solutions: cross-selling opportunities Game Plan for Approval No significant regulatory hurdles . NRC . SEC: '35 Act Registration . FERC . IL Commerce Commission . PA Public Utility Commission Timing . Target closing: ~12 months Transition to Competition PECO Unicom Restructuring plans finalized [X] [X] Stranded cost recovery [X] [X] Securitization in-place [X] [X] Retail choice timetable [X] [X] Management & Governance Structure 8 board members from each company McNeill and Rowe will be Co-CEO's through 12/31/03 McNeill: Chairman for first 18 months . Responsibilities: generation and marketing Rowe: Chairman after 18 months . Responsibilities: transmission, distribution and unregulated growth ventures Financial Benefits Accretive to both companies in first year Positioned for 9-10% long-term EPS growth Dividend provides flexibility to execute growth strategy Balance sheet supports solid credit ratings Vision for the Future Scale, scope and resources enable: . Growth of generation portfolio . Top-quartile distribution performance-- safe, reliable and efficient . Expansion of related growth businesses 9-10% annual growth in earnings per share Slide 27 Peco Energy Logo placed on this slide Unicom Logo placed on this slide Q&A Slide 28 Peco Energy Logo placed on this slide Unicom Logo placed on this slide