SMART GRID WIRELESS TECHNOLOGY COMPARISON CHART WIRELESS CHOICES FOR SMART GRID Smart Grid is an enabling opportunity for operators to seek new market positions and revenue streams in an all-important effort to more intelligently and efficiently address energy generation and consumption. Smart Grid operators can use this comparison chart to clarify the various choices for wireless connectivity – from access to backhaul, for data or management transmission, using any one or combination of various technologies. Aviat Networks offers advanced wireless transmission equipment including microwave backhaul and WiMAX connectivity. We also provide turnkey Professional Services such as network design, system integration and deployment, network managed services (including Network Operation Center services) in all areas of wireless transmission. Our advanced networking and transmission experts can help you build your foundation for Smart Grid and other intelligent efforts for enabling wireless transport around the world. Aviat, Aviat Networks, and the Aviat logo are trademarks or registered trademarks of Aviat Networks, Inc. © Aviat Networks, Inc. (2010) All Rights Reserved. Data subject to change without notice. _z_SmartGrid_ANSI_28Sep10 WIMAX (802.16 d/e/m) Wireless metropolitan area network (MAN) ecosystem including access, ASN and CSN for end- to-end. IEEE 802.16d-2004, 802.16e-2005, 802.16m AMI Backhaul, SCADA Backhaul, Demand Response, Mobile Workforce, Video Surveillance. Efficient backhaul of data - aggregating 100s access points; QoS supports Service Assurance; Battery- backup improves reliability and security; Simple, scalable network rollout and CPE attachment; Faster speeds than 3G cellular; Large variety of CPE and gateway/base station designs. Limited access to spectrum licenses in the US; Trade off higher bitrates over longer distances; Assymetrical up and down link speeds; Bandwidth is shared among users; Competing against future 4G cellular standards for high-capacity, all-IP networks. Mesh (802.11 or 802.16) Outdoor wireless mesh network (WMN) is a communications network made up of radio nodes organized in a mesh topology. IEEE 802.11, 802.16, operating on FCC Part 15 Rules Last-mile access connection to residence and building nodes; AMI backhaul, distribution automation, demand response, remote monitoring. Non-line-of-sight, MIMO configurations, integrated antenna to handle wide range of deployment issues; Easily scalable; Mesh design allows improved coverage around obstacles, node failures and path degradation; Rapid deployment using unlicensed; Security - SNMPv1/2/3 and data encryption; QoS available. Increased delay/latency introduced by multiple hops; Increased complexity of protocols (MAC, routing, management, security); Mesh architecture increases the cost and complexity of the network with each additional node. LTE Enhancements to 3G Universal Mobile Telecommunications System (UMTS) mobile networking, providing for enhanced multimedia services. 3GPP Release 9 AMI Backhaul, SCADA Backhaul, Demand Response, Mobile Workforce, Video Surveillance. Low latency, high capacity; Fully integrated with 3GGP, compatible with earlier 3GPP releases; Full mobility for enhanced multimedia services; Carrier preferred protocol; Low power consumption. Not readily available in many markets/still in testing phases in others; Equipment cost high; vendor differentiation still unclear; Lack of expertise in designing LTE networks; Utilities’ access to spectrum. Microwave 5.8, 6, 11, 18, 23, 70-80 GHz DESCRIPTION High capacity point-to-point wireless transport for backhaul or backbone of telecommunication systems. STANDARDS FCC Part 101, Part 15 HOW TO USE IN SMART GRID Backhaul and backbone transport for various applications such as SCADA, AMI, Distribution Automation and Demand Response. KEY ADVANTAGES Wide range of available capacities, frequencies, configurations; lower cost than fiber build; well- understood deployment and ROI models; highly secure. NOTABLE WEAKNESSES Point-to-point configurations only; Frequency congestion in highly populated areas; Best for high capacity , full duplex, transmission applications. Zigbee (802.15.4) Low-cost, low power, wireless mesh standard for wireless home area networks (WHANs) or personal area network (PAN). IEEE 802.15.4-2003; ZigBee Alliance maintains the standard Home area network for energy management and monitoring: Smart meters; Smart lighting, appliances and electronic equipment. Low cost - for inexpensive consumer devices; Low power consumption - up to 2 year battery life; Self-organizing mesh network - secure, reliable networking; Low data rates - network can support large number of users. Smart energy specifications are still under development; Developer must join ZigBee Alliance. WLAN (802.11b/g/n ) Indoor wireless local area network (WLAN ); home area network (HAN). IEEE 802.11b/g/n; IEEE Working Group provide support and update. Home area network, home automation. Low-cost chip sets - inexpensive consumer devices; Widespread use and expertise - low-cost application development; Stable and mature standards. Small coverge and short distances limit widespread use; Security issues with multiple networks operating in same locations. Power Line Carrier Systems for carrying data on a conductor that is also used for electric power transmission. Several competing: G.hn/G.9960; IEEE P1901 (draft) Substation Automation, AMI Backhaul, Remote Monitoring, Distribution Automation. Piggyback onto existing network of power transmission cables, as long as cables can easily reach population centers, residences, businesses, etc. Viable business model for municipalities because of close proximity to customers. Specilized equipment remains high cost; Owned by power companies that might prefer to use microwave or fiber and sell/lease excess capacity; Standards in draft stages; Electromagnetic interference because power lines are unshielded. 3G Cellular DESCRIPTION 3G includes wide-area wireless voice telephone, video calls, and wireless data, all in a mobile environment. STANDARDS UMTS, CDMA2000, EV-DO, EDGE HOW TO USE IN SMART GRID AMI Backhaul, Communications Network, Mobile Workforce KEY ADVANTAGES Widely deployed, stable and mature; standardized; equipment prices keep dropping; Readily available expertise in deployments; cellular chipset very inexpensive; Large selection of vendors. NOTABLE WEAKNESSES Technology is in the transition phase to LTE deployment; Public cellular networks not as stable/ secure for mission critical/utility applications; Not well-suited for large data/high bandwidth applications.