1. Energy Security Powered by Microgrid Infrastructure Presented By: Colin Kelly Principal Distributed Energy Development Improving energy infrastructure resiliency and security

2. Exelon Corporation: A National Energy Leader Operations & Business Activities in 48 states, Washington D.C. & Canada Revenues: $27.4 billion | Assets: $86.8 billion Employees: 29,000 Competitive Load Served: 180 TWH (electric) 650 BCF (natural gas) Energy Generation: Exelon Generation Generating Capacity: 32,500 MW Competitive Energy Sales: Constellation 175,000 business & public sector customers More than 2 million residential customers Wholesale sales, dispatch, and delivery from Exelon’s 33 GW power generation portfolio Transmission & Distribution: BGE, ComEd, PECO 6.6 million electric customers 1.2 million natural gas customers NYSE Ticker Symbol: EXC Headquarters: Chicago, IL One of the nation's leading competitive power generators, with approximately $27.4 billion in annual revenues. The Exelon family of companies participates in every stage of the energy business, from generation to competitive energy sales to transmission to delivery. *2014 data 1 © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

3. Natural Gas: More than 650 Bcf load in C&I markets^ Retail Power: More than 110 TWh C&I load under contract^ Energy Efficiency: 34,000 MWh conserved by customers Distributed Energy: 300 MW customer sited, completed or under construction Constellation Retail by the Numbers More than 2.5 million customers Serving 2/3 of the Fortune 100 More than 185,000 business & public sector customers More than two million residential customers Constellation is headquartered in Baltimore, MD and is a unit of Exelon Corporation RETAIL ELECTRICITY & NATURAL GAS SERVICE What We Serve Who We Serve Where We Serve *2014 data, ^annualized load 2 © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

4. Macro Energy Issues Energy Price Volatility Power Reliability & Grid Pressures Cyber & Physical Security Threats Energy Security & Resiliency Emergency Preparedness Sustainability Compliance Energy Optimization Distributed generation strategies mitigate risk, reduce energy price volatility, and optimize energy consumption. © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted. 3

5. A Realistic Approach to Energy Security A Holistic Energy Strategy Constellation brings a realistic approach to delivering energy security at budget neutrality over time. A holistic energy strategy has consideration for adaptable distributed generation capabilities allowing bases to “plug and play” as a result of circumstances (threats, breaches, attacks, etc.) affecting an installation. Traditional Power Renewable Integration Demand Side Management Energy Storage Budget Neutral Microgrid By employing a holistic approach to your energy strategy – evaluating project economics in aggregate with respect to mission requirements – you can achieve budget neutrality and project deployment. Electricity, Gas, Hydroelectricity Solar, Wind, Geothermal Load Response, Energy Efficiency Fuel Cells, Electric/Thermal Energy Storage © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted. 4

6. Cost Neutral Solutions 5 Sensors & Controllers Power distribution Chilled/Hot water distribution IT Fuel Cells, etc. © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted. 5

7. CNG Distributed Energy Options Constellation Dist. Energy Your Business Battery Storage Full Requirements Power Backup Power Economic Arbitrage Peak Shaving Constellation Dist. Energy Your Business Full Requirements Power Emergency Generation Co-Generation and Fuel Cell Compressed Natural Gas Constellation Dist. Energy Your Business Constellation Dist. Energy Your Business Battery Backup Power Load Response Emergency Generation ~20 year “Asset PPA” Gas Full Requirements Power (& Heat) Gas Power Co-Gen/ Fuel Cell CNG Station ! CNG ~10+ year “Grid PPA” Frequency Regulation Economic Arbitrage Peak Shaving Distributed energy strategies mitigate risk, reduce energy price volatility, and support the achievement of business objectives. Renewables Constellation Dist. Energy Your Business ~20 year “Asset PPA” Wind and/or Solar Installations ~10 year Fuel Purchase Agmt. 6 © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

8. Exelon and Anbaric Join Forces to Develop State-of-the-Art Microgrids for New York © 2015 Constellation Energy Resources, LLC. The offerings described herein are those of either Constellation NewEnergy-Gas Division, LLC, Constellation NewEnergy, Inc., Constellation Energy Services - Natural Gas, LLC, Constellation Energy Services, Inc. or Constellation Energy Services of New York, Inc., affiliates of each other and ultimate subsidiaries of Exelon Corporation. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted. Feb. 2, 2015 - Exelon announced today that it is partnering with Anbaric, a leading developer of innovative energy infrastructure projects, to create a series of microgrids in the state of New York. A microgrid is a localized power system with the ability to self-supply and operate independently of, or in concert with, the main grid to meet the energy needs of multiple entities. Microgrids offer enhanced grid resiliency and flexibility and mitigate the impact of power outages resulting from severe weather or other disruptions. The collaboration will be dedicated to establishing microgrids ranging from 10 to 200 megawatts at strategic locations throughout the state to secure reliability, reduce costs, and improve the efficiency of the surrounding grid. The microgrids will use state-of-the-art demand efficiency and management technology that equips customers with highly reliable and efficient sources of distributed generation. The alliance is currently identifying customers for its plans to develop five large microgrids at sites in Long Island, New York City, and upstate New York. Customers could include skyscrapers, hospitals, universities, industrial businesses or municipalities. 7

9. Thank you. Colin Kelly Principal Distributed Energy Development 300 Exelon Way Kennett Square, PA 19348 908-202-1772 colin.kelly@exeloncorp.com www.constellation.com