Consumers Energy Advanced Metering Infrastructure Review and Feedback Utility AMI / Open HAN Meeting August 15, 2007

Advanced Metering Infrastructure (AMI) Agenda  AMR vs. AMI  Enabling the Smart Grid  Timeline  CEs Architectural driving forces  AMIs Architectural driving forces  Current Systems  Data acquisition and Control  AMI embedded in the future  Feedback

Advanced Metering Infrastructure (AMI) Customer Outage Detection Demand Response Theft ID Remote TFTN Remote Meter Programming Load Control Price Signals sent to Customer New Rate Design AMR Automated Meter Reads AMR Capability+ AMI Smart Grid AMI Capability+ Remote detection Central and distributed analysis Correction of disturbances on the grid Optimizes grid assets Hourly Remote Meter Reads Customer Voltage Measurement Load Profiling

Advanced Metering Infrastructure (AMI) Requirements AMR 1 Read / Month Last Gasp Outage reports On Demand Reads and Control Hourly Reads 1 / Day AMI Smart Grid AMI Capability+ Even finer resolution data potentially approaching SCADA of 10 seconds or less Ability to interface multiple protocols and devices 15 Min Reads 1 / Day

Advanced Metering Infrastructure (AMI) Project Timeline Integration Design/Development/Testing TechnicalField Field Equipment Selection/Testing Meter Deployment Regulatory Collaboration Mgmt/Corp CEAGo-Live

Advanced Metering Infrastructure (AMI) CEs Architectural driving forces  Common Suite of applications based on a common EAI  Geospatially based applications based on a common GIS  Mobility and Remote data acquisition  Enhanced Knowledge sharing  Virtualization, consolidation and simplification

Advanced Metering Infrastructure (AMI) AMIs Architectural driving forces  Collaborations needed Economy of scale End to end customer process  Turn on – Turn off through the AMI network. 300MW load shed Microcode and programming control  HAN devices that can demand respond and load shed. PCT’s, Plug in Hybrids, Generators, Photovoltaic's, etc.  Support smart grid direction minimizing throw away. Latency and throughput AMI is not the only connectivity  Changing technology. 23 years of exponential growth

Advanced Metering Infrastructure (AMI) OMS EMS GIS Work Dispatch Third-Party SOA Interfaces Commercial applications Operational applications Asset System Customer Systems Work mgmt Other Internal Systems Network Management Portal Current Systems

Advanced Metering Infrastructure (AMI) OMS EMS GIS WMS DRAACS Third-Party SOA Interfaces Operational Data Commercial applications Operational applications Asset System Customer System Work mgmt RTU(s) etc. Other Internal Systems Network Management Portal Data acquisition and Control

Advanced Metering Infrastructure (AMI) OMS EMS Meter Data Hybrid (technology) AMI Could support customer and SCADA metering depending on technology GIS WMS DRAACS Third-Party SOA Interfaces Operational Data Commercial applications Operational applications Asset System AMI Customer System AMI Work mgmt AMI Intelligent Grid Agent(s) Other Internal Systems AMI system Network Management PortalAMI AMI embedded in the future

Advanced Metering Infrastructure (AMI) Feedback