1 advanced meter infrastructure systems comparisons mr. jimmy chandler november 8 th, 2010 1 © the...
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Advanced Meter Infrastructure Systems ComparisonsMr. Jimmy ChandlerNovember 8th, 2010
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AMR - Automatic Meter Reading
AMI – Advanced Metering Infrastructure
AGI – Advanced Grid Infrastructure
BenefitsRevenue mgmt.Reduced intrusion
Circa 1985 Circa 2000 Circa 2007
Typical Functionality
Monthly kWh readings
Daily kWh readings Disconnect
/ reconnect
On-demand reads
Outage management support
Load control
Limited hourly data
Expanded hourly data
Demand Response
Downline automation
Home area network interface
TechnologiesWalk-by radio
Drive-by radio
Fixed radioPLC – 1 way
PLC – 2 way
Fixed/Tower RF–2 way
Star and mesh radio
Broadband/WiMax??
Customer serviceOutage restorationAsset management
Enhanced customer svc.Outage identificationSystem planningReduced losses
Demand responseFeeder automationWeb applications
?
Evolution of Advanced Metering
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•Planning•CIS•GIS•OMS•WFM•AVL•Asset Mgmt•Others
• AMI• SCADA• Crew
Dispatch• Generation
& load dispatch
• Others
Data Acquisition and Control
Data Management
Engine(s)
Integration Bus
ApplicationsWide Area Network Strategies• Backhaul / bulk• Medium to broadband• Data, video, voice• Public and private• RF, fiber, satellite
Local Area Network Strategies• “Last Mile” and AMI
systems• Low to Medium band• RF and PLC
Home Area Networks• Emerging
technologies• Zigbee, Insteon, Z-
Wave, 6LoWPAN, etc
Home automation & generation
Meters
Down-line automation & asset management
Crew Mgmt.
Substations
Typical Smart Grid components
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Core AMI Technology PLC RF Mesh RF Tower Digital Cellular WiMAX / WiFi
VendorsAclara
CooperL+G
Cooper ElsterItron
Landis+Gyr SilverSpring
Tantalus (hybrid)Trilliant
SensusAclara
SmartSynchConsert
Other start-ups
SkyTeqOther start-ups
Optimal deployment scenarios
Rapid, system wide
Rapid, system wide
Rapid, system wide
TargetedTrial system (in 2
– 3 years)Communications status Power-Line Unlicensed Licensed Public Public
Maturity of systems High Moderate Moderate Very Low Very Low
Capital cost of Infrastructure : annual operating expense
Medium : Low Medium : Low Medium : Low Low : High High : Medium
Data throughput Low to moderate Moderate to high Moderate to high Moderate to high Very High
Ability to serve customer based SmartGrid applications
Low to medium Medium to high Medium to high Medium to high High
Ability to serve SmartGrid applications
Medium High High Low High
Summary Technology comparison
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Power-line-carrier AMI systems
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Three PLC-based AMI systems are offered
• Aclara (TWACS)
• Cooper (Cannon)
• L+G (Hunt)
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Corporate Network
AMI Server
MDM Server
Other Servers
Substation 1
Substation 2
Circuit 1
Circuit 2
Circuit 2Circuit 1
Wide Area NetworkOr Direct Backhaul
• WAN communications from office to substations via radio, fiber, or satellite
• LAN communications from substations to meters uses utility power lines
PLC-based AMI
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Wireless AMI Systems
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Common types of wireless systems• Mesh – unlicensed
• Cooper• Elster• Itron• Landis + Gyr• Silver Spring• Tantalus• Trilliant
• Tower – licensed• Aclara• Sensus
• Digital Cellular – public• SmartSynch (AT&T)
• Fixed Broadband – public• SkyTeq
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Substation 1
Substation 2
Wide Area Network
Corporate Network
AMI Server
MDM Server
Other Servers
• WAN communications from office to collectors is via public or private TCP/IP communications
• LAN communications from collectors to meters use a custom designed techniques which allow meters to communicate through a dynamically created shorter range unlicensed wireless mesh (Hundreds of feet).
• Increased number of collectors may increase throughput and reduce latency.
RF – Mesh AMI
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Substation 1
Substation 2
Substation 2
Corporate Network
AMI Server
MDM Server
Other Servers
Wide Area NetworkOr Direct Backhaul
• WAN communications from office to substations via radio, fiber, or satellite
• LAN communications from towers to meters use custom designed techniques which allow meters to communicate to more than one tower using longer range licensed wireless (Tens of miles).
• Same network can support Distribution Automation and other applications.
• Towers may be added for improved coverage.
RF – Tower AMI
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Substation 2
Substation 2
Corporate Network
AMI Server
MDM Server
Other Servers
Wide Area Network – Local Area Network using AT&T GPRS
• All communications from office to meter is made using publically available digital cell carriers. There is no infrastructure cast but there is a continuous expense for data handling. All meters are IP-enabled. There is no experience with handling distribution automation applications.
RF – Digital Cell AMI
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WIMAX/WiFi Network
Insteon
AMI Server
MDM Server
Other Servers
Corporate Network
Substation 1
• Meters interfaced via HAN• Large infrastructure costs• Deliver broadband internet service to
customers (possible revenue source?)• IP-enabled meters (currently limited
availability)• Water uses Orion system (today)
Residence
Residence
WiMAX/WiFi enabled (Future)
WiMAX/WiFi
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HAN Systems Architecture
Sensus Confidential
Head End Head End ServersServers
DisplaysLCM
Multi-Comm PCT/G-way
H/W
HANHAN
SmartPointGateway
- Energy Gateway
-
Web- HTTPS -
End-User Portal End-User Portal - Unified UI -
Personal Energy
Network
Solar
- Other Gateways -
PHEVsDG / DSEnergy Mgt.Future…
Storage+ _
3rd Party Svcs
AMI Communications Path
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MDM is…..
• The evolution of Load Research Systems created in the 1970’s to serve commercial and industrial customers, wholesale interchange metering, and PURPA.
• A platform that enables fundamental changes in how utilities operate using vast amounts of measured data and information
• A centralized data management and data storage platform for existing data and future data collected from AMI systems and new Smart Grid technologies
• A centralized integration point for integrating utility applications utilizing web-services, Multi-Speak, ODBC, XML, etc.
• Centralized data analysis and reporting of all operational data
• A provider of Interval Data Validation, Editing and Estimation (VEE), Meter Read Profiling, Load Research, Energy Settlement, Energy Data Presentation, and Line Loss Analysis
• A foundation for launching future customer programs including new customer-premise devices (e.g., HAN, Smart Thermostats)
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Need for MDM:
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• AMI• Manual
Readings• SCADA• OMS• MWF• Other
• Validating, Editing and Estimating (for hourly data)
• Standards and rules for service order creation
• Proactive assurance of data availability
• Audit trail
• Securely manages 1,000 times more data/meter than CIS or AMI systems can.
• Tags for weather, demographic and other operational characteristics
• Manage and access non-traditional meter data, e.g., PQ, volts, etc.
• Interface to billing systems
• Interface for Customer Service Reps
• Create TOU billing summaries
• Provide summary data • Support operation &
planning needs • Platform for customer
web presentment
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