2. Metropolitan Planning Council Roundtable Discussion November 17, 2011 ComEd J. Tyler Anthony Senior Vice President, Distribution Operations

3. 2 ComEd Service Territory ComEd Service Territory in Square Miles ~11,400 (310 in Chicago) Electric Customers 3.8 million (1.3 million in Chicago) Population Density 8.5 million in retail service territory (3.0 million in Chicago) Number of Employees ~5,840 (Approximately 63% union) Primary Distribution Circuit Miles ~66,000 (54% OH / 46% UG) Transmission Circuit Miles ~5,730 (including below 100 kV) Number of Poles on System ~1.4 million Summer Peak Load – MW (all- time High) 23,753 (July 20, 2011)

4. 3 Our Management Model Business Planning Executes multi-year business plans in order to achieve ComEd’s and Exelon’s corporate goals and objectives. What we do to drive performance – our core processes What We Do – Our Core Processes Ongoing processes to run the business How We Measure and Improve Managing and Assessing the Business Organization Structure and Principles Behaviors/ Core Values Who We Are – and Who We Aspire To Be Stakeholders Goals Vision Strategic Drivers Values How We Plan – Our Business Planning Process

5. 4 Here are the four main sections of the Management Model Diagram 1. 3. 2. 4.

6. 5 System Reliability Reliability Performance Indicators System Average Interruption Frequency Index (SAIFI) indicates how often the average customer experiences a sustained interruption over a predefined period of time SAIFI shows an improving trend since 1998 ComEd’s 2010 year-end SAIFI performance of 0.94 is the fourth best on record ComEd SAIFI has improved by 13% since 2001 and 33% since1998 2011 Year-End SAIFI projection 0.83, best on record. Customer Average Interruption Duration Index (CAIDI) represents the average time in minutes required to restore service to those customers who experience a sustained outage interruption. CAIDI shows an improving trend since 1998 ComEd CAIDI has improved by 3% since 2001 and 27% since 1998 2011 Year-End CAIDI projection 89 minutes, fifth best performance on record.

7. 6 Distribution Infrastructure Improvements System Modernization Plan “Smart Grid” Electric System Upgrades 6 Vision Statement Enhance customer value with cost-effective technological advancements that empower customers in ways that lead to more efficient utilization of electricity, reductions in future demand growth, improvements in the environment and a more reliable and secure system.

8. 7 Enhance customer value Implement cost-effective technological advancements Empower customers through knowledge Utilize electricity more efficiently Reduce future demand growth Support “green” environmental initiatives Improve reliability and system security Our Smart Grid Vision

9. 8 URD Cable Replacement URD Cable Injection URD Cable Replacement Directional Boring Spacer 3 Layer Cable Messenger Tangent Bracket Spacer Cable Installation Tripsaver Fuse Installations Operational Excellence – Infrastructure Improvements 12kV DA Device Leaking Joint New Joint Reinforced Wood Pole Advanced Meter Intelligent Substation Overhead Fiber Optic Cable Installation