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Public Service Commission of Maryland Proposal for Advanced Metering Infrastructure (AMI) Delmarva Power and Public Service Commission of Maryland Proposal for Advanced Metering Infrastructure (AMI) Delmarva Power and Light Company Potomac Electric Power Company June 26, 2009 0

Contents AMI Overview …………………………………………. . . 2 AMI Business Case ………………………………………. 12 AMI Vendor Contents AMI Overview …………………………………………. . . 2 AMI Business Case ………………………………………. 12 AMI Vendor Selection ……………………………… 28 AMI Program Timeline ……………………………………… 36 Conclusion ……………………………………. . . ……………… 38 1

AMI Overview Introduction Advanced Metering Infrastructure (AMI)… • Is a foundational element of Smart AMI Overview Introduction Advanced Metering Infrastructure (AMI)… • Is a foundational element of Smart Grid and enables our efforts to provide more information to our customers and help them to manage energy use • Enables goals of Em. POWER Maryland • Is cost effective and a good investment for Pepco and Delmarva customers • Is an extraordinary value for the residents and businesses of Maryland when partially subsidized through a DOE “stimulus” grant Regulatory approval for AMI will strengthen Pepco’s and Delmarva’s ability to compete for DOE funds. 2

AMI Overview PHI’s Smart Grid Footprint Communication Infrastructure Workforce Management Transmission Substation Distribution Automation AMI Overview PHI’s Smart Grid Footprint Communication Infrastructure Workforce Management Transmission Substation Distribution Automation AMI/DSM Smart Substation Feeder Automation Intelligent Sensors 3

AMI Overview PHI’s Smart Grid § AMI is part of a broader Smart Grid AMI Overview PHI’s Smart Grid § AMI is part of a broader Smart Grid System § Smart Grid components: § § § § Advanced meters which, among other purposes, serve as customer-specific sensors Distribution, transmission and substation sensors Distribution, transmission, and substation automation devices § Fault detectors § Automatic circuit reclosers § Voltage controls § Automatic Sectionalizing & Restoration devices § Synchrophasors § High Voltage Direct Current § Smart relays Demand response components including smart thermostats In-home displays Telecommunications network Integrated IT network including Meter Data Management System Greater access to customer and grid information for all stakeholders 4

AMI Overview AMI is fundamental to delivering Smart Grid benefits PHI’s Smart Grid Program: AMI Overview AMI is fundamental to delivering Smart Grid benefits PHI’s Smart Grid Program: Connecting the Smart Grid Dots… 5

AMI Overview AMI is a critical step in the evolution of the Smart Grid AMI Overview AMI is a critical step in the evolution of the Smart Grid • Step 5 Maturity • Step 4 • Step 2 • Step 1 • Communications infrastructure: Optimization: – Capability of real-time • Analytical optimization of distribution infrastructure: • Step 3 network – Development performance of new data Integration: – Decisions analysis – Corporate IT based on near capabilities systems real-time – Increased integrated to information, no ability to allow rapid longer only display processing of historical data information (in data form of – Open dashboards, architecture etc. ) based design to facilitate sharing of information – Enterprise • Intelligent devices communication infrastructure: system for rapid and accurate – AMI, or “Smart transmission of Meters” data – Demand Response – Integration of Devices fiber and mesh – Advanced DA broadband devices networks – Substation IED Controllers Capability *Adapted from IBM 6

AMI Overview AMI is a key component of a Smart Grid • AMI refers AMI Overview AMI is a key component of a Smart Grid • AMI refers to the full measurement, collection and processing of meter and other customer data • AMI includes “smart” meters installed at each premise, a two way communications network, and data management systems • AMI enables more granular measurement of consumption, the matching of consumption to price signals and more frequent transmittal of consumption data • AMI enables a partnership between PHI and their customers to help customers make better energy decisions 7

AMI Overview AMI Meter Capabilities • • • • • Daily/Hourly/15 Minute Interval Meter AMI Overview AMI Meter Capabilities • • • • • Daily/Hourly/15 Minute Interval Meter Reads Customer Move In/Out and Other On-Demand Meter Reads Remote Upgradeability of Firmware Interoperability Radio Frequency (RF) Communication to Field Network Devices Radio Frequency (RF) Communication to In-Home Devices via Zigbee Protocol Connect/Disconnect Switch Load Limiting Capabilities Bi-Directional Metering Interval Register Data Voltage Readings/Power Quality Outage Notification, Power Restoration, and Energized Meter Verification Configurable Settings and Internal Clock Diagnostic Alarms, Tamper Flags, and Outage/Switch Counters 35 Days Non-Volatile Storage of Data Register Display Support for Home Area Network, Distribution Automation, and Demand Response Tamper reporting 8

AMI Overview Benefits from AMI Meter Capabilities Item No. Feature/Functionality Benefit 1 Hourly interval AMI Overview Benefits from AMI Meter Capabilities Item No. Feature/Functionality Benefit 1 Hourly interval data recording for electric customers, depending on their rate. (Note meters are capable to be programmed to obtain 15 minute interval data) Enable innovative rate structures, e. g. , Critical Peak Pricing (CPP), CPP Rebate, & Hourly Pricing. Present customers with energy usage data. Provide customers with improved response to billing & other inquiries. (Requires integration with the meter data management system, customer billing system and “My Account” web functionality) 2 Two-way radio frequency communication to the meter Reduce manual meter reading while improving accuracy and lowering the number of estimated bills. Less intrusive to customers by not having meter reading personnel in or near the customer’s home or business. 3 American National Standards Institute (ANSI) certified 200 A full-load remote disconnect switch and on-demand meter reading Enable remote turn-on/off reducing field visits and enhancing customer service, e. g. faster and better scheduled turn-ons/offs. 4 Tamper reporting and diagnostic alarms Enhance tampering detection. Detect meter malfunctions sooner and reduce number of incorrect bills. Integration with the revenue protection module in the MDMS will help the Company proactively reduce theft of service. 5 Configurable outage definition and time stamped outage and power restoration reporting Enhance detection and location of outage causes. Provide outage notification and estimated time of restoration information to customers as an optional service offering. 6 Bi-Directional Metering, Net energy metering capability Enable innovative rate structures, supporting renewable energy sources. (Requires integration with the meter data management system and the customer billing system) 7 On-demand remote meter “ping” capabilities Support move in/out process. Provide improved customer service by remotely verifying that a meter is currently in or out of service, helping to alert the customer that the problem may be on the customer side of the meter. Web presentation Includes the implementation and configuration of Aclara’s Load and Rate Analysis Module, the development of a meter read relational database, and the integration of the Aclara’s Load and Rate Analysis Module with this database and SSN system to support web presentation of electric and gas consumption profiles. 8 9

AMI Overview AMI facilitates advanced load control and energy efficiency programs AMI enables other AMI Overview AMI facilitates advanced load control and energy efficiency programs AMI enables other Smart Grid and related Energy Efficiency, Demand Response and Distributed Generation efforts such as: • Dynamic Pricing Options • Direct Load Control (via AMI-enabled switch) • Integration of AMI System with Programmable Controllable Thermostats (PCT) and/or Direct Load Control (DLC) Switches for Load Control Purposes • Web Presentment and Analytics Using Interval Usage Data including In Home Displays (IHD) and PCTs • New or Expanded Bi-Directional and/or Net Metering Rate Designs and Customer Offerings • Expanded Home Area Network Integration (as needed) • Engineering Analytical Data and Tools to Improve System Planning • Integration of Plug-in Hybrid Electric Vehicles, also known as PHEV (dependent on degree of PHEV penetration in customer base) 10

AMI Overview PHI will deliver these AMI benefits securely PHI applies security measures to AMI Overview PHI will deliver these AMI benefits securely PHI applies security measures to many systems, including Smart Grid applications (AMI, DLC, DA) as well as existing power delivery and IT assets. PHI is participating in the development of DOE and NIST guidelines on Security and Interoperability and will adapt to newly established standards. We identify, evaluate and monitor risks across the entire grid, paying particular attention to data interfaces between levels, as shown below. A holistic approach on physical and cyber security… Transmission Substation Transmission Level “Bulk Power” Distribution Substation Level Customer Level Feeder Level 11

AMI Business Case The AMI Value Proposition AMI benefits flow to customers through both AMI Business Case The AMI Value Proposition AMI benefits flow to customers through both the Distribution and Supply components of the bill. Approximate Residential Customer Bill Breakdown Supply Operational Benefits • Eliminate Manual Meter Reading • Remote Connect / Disconnect • Improve Billing Activities • Reduce Off-Cycle Meter Reading • Asset Optimization • Reduce Expenses due to Theft • Operating Efficiencies • Enhance Customer Service • Load Research 75% Distribution 25% Customer Savings from Reductions in Peak Load • AMI-Enabled Dynamic Pricing • Demand Response • Energy Conservation • Distributed Generation • Reduced Usage Enabled By AMI Energy Information • Load Research 12

AMI Business Case summary Under any one of the projected market scenarios, this initiative AMI Business Case summary Under any one of the projected market scenarios, this initiative promises a positive overall net present value for Pepco and Delmarva in their Maryland customer base… 15 Year Present Value Scenarios for Demand Response for Pepco Maryland 15 Year Present Value Scenarios for Demand Response for Delmarva Maryland Total Costs Operational Benefit Voluntary Growing to 20% Participation Mandated Dropping to 80% Participation Green bars represent savings on the supply portion of the customers’ bills derived from the combination of AMI-enabled dynamic pricing and AMI-enabled direct load control programs Source: Brattle Group Study Conclusion: • AMI is a net-positive investment for our customers even in the most conservative, lowest-value scenario • The benefits from AMI-enabled critical peak pricing (CPP) will be more than doubled if dynamic pricing is the default rate structure 13

AMI Business Case (Delmarva-MD) Original business case estimates, excluding supply-related benefits 14 AMI Business Case (Delmarva-MD) Original business case estimates, excluding supply-related benefits 14

AMI Business Case (Pepco-MD) Original business case estimates, excluding supply-related benefits 15 AMI Business Case (Pepco-MD) Original business case estimates, excluding supply-related benefits 15

AMI Business Case Demand reductions enabled by AMI System-Wide Peak Demand Reductions Attributable to AMI Business Case Demand reductions enabled by AMI System-Wide Peak Demand Reductions Attributable to Dynamic Pricing Critical Peak Pricing - Default Scenario Critical Peak Pricing - Voluntary Scenario Brattle Group Study, September 2007 The Brattle Group study excluded large, non-residential accounts. As such, these results are conservative. 16

AMI Business Case Ensuring direct benefits from AMI for low-income customers • Availability of AMI Business Case Ensuring direct benefits from AMI for low-income customers • Availability of Critical Peak Rebate Rates for State Identified Low Income Customers – Provides “No. Risk” Opportunity to Reduce Energy Costs – Estimated peak reductions due to CPR rates from recent BGE pilot range from 18% to 29%, depending on rate design and enabling technology • Availability of Supporting Direct Load Control Technology to Automatically Reduce Energy Demand During Critical Peak Periods – Smart Thermostats or Direct Load Control Switches • Proposed Availability of Information Display Devices (at no additional cost to low income customers) to Provide Daily Information About Daily Energy Consumption and Energy Prices – Helps Customers to Avoid Exceeding their Monthly Energy Budget • Supporting Em. Power Energy Efficiency and Conservation Programs and General Awareness Planned 17

AMI Business Case The AMI Value Proposition • AMI is cost effective for individual AMI Business Case The AMI Value Proposition • AMI is cost effective for individual Pepco customers. • Operational and supply-related benefits outpace cost by year 3 under most conservative of scenarios (e. g. , passive supply-related benefits). • Does not incorporate any service-related benefits. Supply-related benefits derived from Brattle Group’s most conservative scenario (2007 supply rates) Residential customer depiction; based on 1000 kwh per month. 18

AMI Business Case The AMI Value Proposition • AMI is cost effective for individual AMI Business Case The AMI Value Proposition • AMI is cost effective for individual Delmarva customers. • Operational and supply-related benefits outpace cost by year 8 under most conservative of scenarios (e. g. , passive supply-related benefits). • Does not incorporate any service-related benefits Supply-related benefits derived from Brattle Group’s most conservative scenario (2007 supply rates) Residential customer depiction; based on 1000 kwh per month. 19

AMI Business Case The AMI Value Proposition • The investment in AMI will produce AMI Business Case The AMI Value Proposition • The investment in AMI will produce benefits that outweigh the costs for Maryland customers – even without funds from the Department of Energy (DOE)’s American Recovery and Reinvestment Act (ARRA). • Contract-based cost expectations: $179 M* • Meters and Communications network (including installation): $149 M • AMI network mgmt system and meter data mgmt system: $11 M • Contingency: $19 M *There is a prevailing wage requirement for DOE ARRA grants, which is projected to increase the cost to $190 M • Projected benefits (distribution): $111 M • Projected benefits (supply): $113 M (voluntary participation) or up to $366 M (default participation) source: Brattle Group 20

AMI Business Case DOE American Recovery and Reinvestment Grants for AMI subsidized through a AMI Business Case DOE American Recovery and Reinvestment Grants for AMI subsidized through a DOE “stimulus” grant offers an extraordinary opportunity for the residents and businesses of Maryland. • The DOE Stimulus Program offers up to 50% grant ($200 M maximum) for Smart Grid investments such as AMI. • This could result in up to $95 M of $190 M project in MD being funded at the federal level. • Time is of the essence – letter of intent due July 16 th, application window closes August 6 th. • Two additional windows planned for 4 Q 09 and 1 Q 10, but no guarantees from the DOE that any funds will remain to be awarded after the first window – significant risk in waiting for second round. • DOE Funding Opportunity Announcement (FOA) indicates that regulatory support for cost recovery of the investment amount above any stimulus grant will be factored into Smart Grid Investment Grant (SGIG) review process. • Cost recovery is not a DOE prerequisite but is an area of DOE consideration. • PHI’s existing DOE loan application for Mid-Atlantic Power Pathway (MAPP) has moved to the third phase of review and has shown the importance that DOE places on cost recovery 21

AMI Business Case The AMI opportunity created by ARRA • The impact of AMI, AMI Business Case The AMI opportunity created by ARRA • The impact of AMI, subsidized through a DOE grant, is of even greater benefit to the Pepco customer. • Does not incorporate any service-related benefits 22

AMI Business Case The AMI opportunity created by ARRA • The impact of AMI, AMI Business Case The AMI opportunity created by ARRA • The impact of AMI, subsidized through a DOE grant, is of even greater benefit to the Delmarva customer. • Does not incorporate any service-related benefits 23

AMI Business Case Proposed Cost Recovery ● The Companies seek the establishment of two AMI Business Case Proposed Cost Recovery ● The Companies seek the establishment of two regulatory assets for each utility - one by which the Companies recover incremental costs associated with AMI deployment incurred between rate cases, and one by which the Companies fully recover the net book value of un-depreciated non-AMI meters ● Regulatory asset treatment is necessary to afford Pepco and Delmarva the opportunity to recover prudently incurred costs associated with the deployment of AMI in Maryland ● The balance in the regulatory assets will accrue a return based on each Company’s most recently authorized rate of return: ▪ For Pepco, currently 7. 99% (as approved in Case No. 9092, Order No. 81517) ▪ For Delmarva, currently 7. 678% (as approved in Case No. 9093, Order No. 81518) 24

AMI Business Case Regulatory Assets – incremental AMI costs ● Elements of Regulatory Asset AMI Business Case Regulatory Assets – incremental AMI costs ● Elements of Regulatory Asset – Incremental Costs ▪ Incremental depreciation expense for new meters (15 -year life), that is incrementally above what is currently already being recovered ▪ Leasing Costs for computer hardware (Meter Data Management System) ▪ Amortization of software (5 -year period) ▪ Incremental costs (labor, consulting) ▪ Known and measurable utility cost savings resulting from AMI deployment will be reflected as an offset in the regulatory asset ● Creation of a regulatory asset for these costs preserves the ability of the Commission, Staff and other interested parties to review the prudency of those costs when Pepco and Delmarva seek to recover them ● Deferred amounts will be reviewed in the context of each utility’s next base rate proceeding, and, upon Commission approval, be recovered over an appropriate period of time, such as three to five years 25

AMI Business Case Regulatory Assets – NBV of un-depreciated non-AMI meters ● Elements of AMI Business Case Regulatory Assets – NBV of un-depreciated non-AMI meters ● Elements of Regulatory Asset – NBV of Un-depreciated meters ▪ Amortization of the net book value of un-depreciated non-AMI meters over a 15 year period − Coincides with life of new meters − Conservative approach with lower revenue requirement than shorter amortization period requested by other utilities (e. g. Florida Power & Light requests 4 -year amortization) 26

AMI Vendor Selection Process Overview PHI went through a competitive selection process in order AMI Vendor Selection Process Overview PHI went through a competitive selection process in order to select the vendors for its AMI equipment, software and services. PHI conducted the following two evaluations: 1. AMI Technology (which included electric meters, gas communication modules, communication network and software) – – 2. This includes a review of the integrated communications solution for AMI together with other Smart Grid applications This also includes a distinction of meter vendors from other AMI technology vendors End Point Installation services Note: Prior to the above, PHI performed a separate competitive selection process to obtain a consulting firm to assist with the AMI Selection Process. 27

AMI Vendor Selection Process Steps 28 AMI Vendor Selection Process Steps 28

AMI Vendor Selection Process Requests For Proposal The scope of the AMI Technology RFP AMI Vendor Selection Process Requests For Proposal The scope of the AMI Technology RFP included: • Installation of AMI Local Area Network (LAN), integrating with the PHI Wide Area Network (WAN) • 1. 9 million Electric Meters, from two different manufacturers • AMI IT System (Head-End System w/ application, database, and other components) The scope of the End Point Installation RFP included: • Installation of new Electric AMI Meters • Installation of Gas Modules onto existing Gas Meters • Removal and Salvage of Existing Electric Meters and Gas Modules 29

AMI Vendor Selection Process Integrated Communications Solution (for AMI & Other Smart Grid Applications) AMI Vendor Selection Process Integrated Communications Solution (for AMI & Other Smart Grid Applications) PHI developed an Internet Protocol (IP) based communications design that included the possibility of using the wireless mesh technology for both AMI and other Smart Grid applications (including distribution automation). AMI communication network vendor finalists were evaluated against these key strategic drivers: 1. 2. 3. 4. 5. 6. 7. 8. Robustness Open standards Bandwidth for utility operations (Distribution Automation and substations) Bandwidth for AMI, Demand Side Management and Home Area Network End-to-end Quality of Service (Prioritization of critical path) Performance risk mitigation and reliability Design protocol capabilities of Distributed Network Protocol 3 (DNP-3) Available memory in the Network Interface Card (NIC) The selection of Silver Spring Networks (SSN) enabled PHI to realize the following benefits: – An integrated communication system resulted in the deployment of fewer communication devices than individual communication systems. It also created a stronger communication system that supported the overall smart grid initiatives. – The ability to connect distribution devices to either the wireless mesh or broadband wireless networks. – An overall communications network where only 10 -15% of total network bandwidth is needed to manage AMI functions (including network overhead) – providing PHI with the ability for future enhancements and benefits – Prioritized routing of data (Qo. S) – More robust security design with an integrated communications network 30

AMI Vendor Selection Process Outcomes • On August 21, 2008, the PHI’s AMI and AMI Vendor Selection Process Outcomes • On August 21, 2008, the PHI’s AMI and Communications Infrastructure Teams recommended an integrated solution to the Executive Leadership Team: – Silver Spring Networks (SSN) for AMI Communications – Direct purchase with Landis+Gyr and General Electric (GE) for electric meters – Scope Services for AMI end point installation • In January 2009, PHI completed its negotiations with SSN • In March 2009, PHI completed its negotiations with GE and L+G • In April 2009, PHI completed its negotiations with SCOPE Services These contracts apply to all PHI jurisdictions 31

AMI Vendor Selection Process Contracted costs against original business case estimates Delmarva - Maryland AMI Vendor Selection Process Contracted costs against original business case estimates Delmarva - Maryland Pepco - Maryland The current forecasts are based in large part on executed contracts for Delaware which are potentially applicable to other jurisdictions 32

AMI Vendor Selection Process Interoperability & Upgradeability PHI selection of vendors has enabled improved AMI Vendor Selection Process Interoperability & Upgradeability PHI selection of vendors has enabled improved interoperability and future expansion capabilities • Appropriate selection and application of open standards • Collaborations with industry standards-making organizations such as IEEE, NIST, EPRI, together with other utilities technical developments and issues • Actively engage technology vendors to address needs • AMI Network solution contains significant bandwidth for future use, providing further flexibility to meet future needs • Field acceptance testing before full deployment • Involvement of industry experts in systems integration (e. g. IBM) • Close monitoring of technology system performance • Requirement that AMI system includes the ability to perform over the air firmware upgrades to protect against technology obsolescence. 33

AMI Vendor Selection Process AMI and Communications Equipment General Electric Smart Electric Meter Silver AMI Vendor Selection Process AMI and Communications Equipment General Electric Smart Electric Meter Silver Spring Networks Wireless Mesh Network Communications Equipment Landis+Gyr Smart Electric Meter 34

AMI Program Timeline Delmarva Power (Delaware and Maryland) 35 AMI Program Timeline Delmarva Power (Delaware and Maryland) 35

AMI Program Timeline Pepco (District of Columbia and Maryland) 36 AMI Program Timeline Pepco (District of Columbia and Maryland) 36

Conclusion Our Response to the Concerns Related to AMI • AMI is an essential Conclusion Our Response to the Concerns Related to AMI • AMI is an essential element of a Smart Grid • PHI’s opinion, supported by studies from Brattle Group, demonstration projects, and other experts, is that individual customer Smart Sensors (automated meters) are fundamental to changing customer behaviors and achieving Smart Grid operational and reliability benefits. • AMI will help reduce customer bills • Multiple studies from around the country demonstrate that this technology will help customers spend less on energy through AMI-enabled dynamic pricing. • AMI-enabled dynamic pricing is essentially an investment in the smaller (25%) distribution portion of the bill offset by savings in the larger (75%) supply portion of the bill. • PHI considered the technology obsolescence issue at length in its extensive due diligence and selected a long-term solution for AMI with remotely upgradeable meters. • PHI sourced AMI through a rigorous and competitive process, resulting in a reasonable level of spending. 37

Conclusion Summary Advanced Metering Infrastructure (AMI)… • Is a foundational element of Smart Grid Conclusion Summary Advanced Metering Infrastructure (AMI)… • Is a foundational element of Smart Grid and enables our efforts to provide more information to our customers and help them to manage energy use • Enables goals of Em. POWER Maryland • Is cost effective and a good investment for Pepco and Delmarva customers • Is an extraordinary value for the residents and businesses of Maryland when partially subsidized through a DOE “stimulus” grant Regulatory approval for AMI will strengthen Pepco’s and Delmarva’s ability to compete for DOE funds. 38