Submission Title: [Wireless Neighborhood Area Networks - WNAN] Date Submitted: [15 July, 2008] Source: [Tommy Childress]Company [Cellnet+Hunt] Address: [30000 Mill Creek Ave, Alpharetta, GA 30022] Voice [ ] Re: IEEE 802 Plenary WNAN Tutorial Abstract: States the needs for Utility Networks as expressed by the Utility view as high level technical requirements. Purpose: Contribution to Neighborhood Area Networks Interest Group (IG-NAN) Notice:This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P July 2008Doc

Today, Energy industry is undergoing significant transformation +Need for transformation driven by: -Escalating costs of energy generation against the regulatory pressures on pricing -Supply and network constraints requiring significant investments -Environmental & political pressure -Aging workforce +Confusion in markets and technology fields today, with many directions to choose July 2008 Doc

Electric Utilities +Number of Utilities … 3,411 +Electric Utilities serve over 140M residential and commercial customers +Electric Utilities spent over $2.3B in Smart Metering in 2006 (Energy Insights Estimate) July 2008 Doc

Deployments Fixed RF Networks 12 million meters Direct Sequence Over 200 Fixed RF Distribution Automation and SCADA Networks Mesh Frequency Hopping July 2008 Doc

Key Requirements Equal Service Level Across the NetworkScalable NetworkLow Capital Expense20 year lifeLow Operational ExpensesBandwidth …Data TrafficRobust and Secure July 2008 Doc

+Typically fixed installation -Electricity meter outside or inside the house -Sensor located throughout utility transmission and distribution infrastructure +Density - -Downtown, Urban, sub-urban and rural environment -Density of deployment can range from 4000 devices per square mile to 1 device per 10 square mile Equal Service Level Across the Network July 2008 Doc

+Network must be scalable -Millions of Meters -Thousands of Distribution Devices -Millions of Sensors Scalable Network July 2008 Doc

+Communication devices costs must be in few dollars not tens of dollars +Capital expense includes -Purchase cost of sensor -Installation costs +Installations -Low Cost and Simple Low Capital Expense July 2008 Doc

+Devices must last for 20 years in harsh outdoor environment +Over the Air Firmware Upgrade +-40 C to 85C +Surge and other AMI requirements from IEEE and ANSI apply 20 year life July 2008 Doc

+Any field trip is expensive and can be more than the cost of the product +Devices must be highly reliable -99.5% of the time no field visits should be required -Remote programming, configuration, diagnostic +Plug & Read networks +Self healing Low Operational Expenses July 2008 Doc

+Few kilobytes of continuous traffic +Few seconds latency +Reliable delivery of data – in excess of 99.5% +Alarms and special events can cause few minutes spikes in traffic Bandwidth …Data Traffic July 2008 Doc

Data usage in AMI/AMR +Meter Data – 57% +On-Demand Meter Reads – 2% +Outage/Restoration – 1% +Demand Response – 4% +System Firmware Upgrade – 10% +DA/SCADA – 26% Data volume for typical AMI/AMR applications. July 2008 Doc

AMI/AMR bandwidth usage +Meter Data – 9% +On-Demand Meter Reads – 1% +Outage/Restoration – 16% +Demand Response – 70% +System Firmware Upgrade – 1% +DA/SCADA – 3% Bandwidth requirements for typical AMI/AMR applications is driven by time response. July 2008 Doc

+Network Uses -Revenue Determinants -Command & Control -Distribution Automation -Demand Response +Security -Encryption -Authentication +Robust -Direct Sequence ( ) – Very Good -Frequency Hopping Mesh ( X) – Better! Robust and Secure July 2008 Doc

Thank You! Equal Service Level Across the NetworkScalable NetworkLow Capital Expense20 year lifeLow Operational ExpensesBandwidth …Data TrafficRobust and Secure July 2008 Doc