Smart Grid Network
A core component for FttH-Infrastructure in Constance
Roland Stader Area Manager
AAT & Telecommunications
Stadtwerke Konstanz GmbH
Max-Stromeyer-Str. 21-29 • 78467 Konstanz
Tel.: +49 (0) 7531 803 343 • Fax +49 (0) 7531 803 77 343
www.swkn.de
2
Agenda • Introduction
• History & Motivation
• FttH activities in Constance
• Smart Metering in Constance
• Substation Automation
• Communication as a Key-Factor
• „Smart-Street Lighting“
• Summary
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Introduction • Constance – Birthplace of count „Zeppelin“
• Located in southern Germany / Swiss Border
• Lake of Constance – Central Europe‘s third biggest lake
• Stadtwerke Konstanz - Municipal utility
Constance:
- Roman origin
- Population 85.000
- Two universities
- Tourist area
- Historical city centre
- Natural reserve
- EU-external frontier
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Introduction • Stadtwerke Konstanz
– Power, Gas and Water Supplier
– Energy Service
– City bus traffic
– Thermal Spa
– Ferry Boats and cruise vessels
– Distribution grid (110/20kV)
– Redundant supplier (Germany / Switzerland)
– 300 Substations / 50.000 Power Meters
– Central SCADA System (NCC)
– 5MW Photovoltaic Power (No Wind power)
– Telecommunications city carrier (FTTH)
– Submarine fibre optic cables
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History and Motivation • The world needs about 5 computers. (Th. Watson 1943)
• Computers in the future may weigh no more than 1,5 tons. (Th.
Watson, Popular mechanics 1949)
• No one will need more than 637kb of memory
for a personal computer.
(Bill Gates, 1983)
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Motivation for Fibre Optic Networks Nielsen‘s Law:
Users' bandwidth grow by 50% per year
Copper-based
communications (xDSL)
will soon reach capacity
and bandwidth limits!
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FttH Activities in Constance • Fibre optic backbones since 1996
• Originally used for substation automation only
• Poor data connection of constance until 2007
• No Internet in the industrial area available until 2011
Submarine fibre optic cable in 2007 (30km)
FTTH rollout for whole city area (10 years)
Stadtwerke Konstanz: Carrier for Internet, Telephone, TV
Key success factor for „Internet of the Energy“
Two fibers per building reserved for „Smart X“
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Smart Metering Activities • Various „Field Tests“ of Smart Metering Systems
– Power Line, DSL, TETRA, GSM/UMTS, etc.
• Research Project since 2004
– University of Constance (Computer Science Dept.)
– Development of a „Universal Home Service Gateway“ (Hardware), IP-Based
– Development of a Software-System to manage meters (bidirectional) – data
collection and storage
– Web based customer front-end to visualize data
– Standard database-interfaces for third-party-systems
– Data encryption through standard VPN-technologies
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Universal Home Service Gateway
Hochschule Konstanz
Dept. of Computer Science
Native
Applications
OSGi
Java Runtime Environment
Operating System (RTOS)
Bundles
SecuritySmart
Home...
11
Communication as a key factor • Results of smart metering activities
– Low acceptance with customers (today) / No real benefit for consumers
– Establishment of communication links (bidirectional) is expensive
But: Energy grids have to be highly automated (Smart Grids)
• Challenges for Smart „X“
– Automation of numerous Systems and levels, controlling various parameters
– SCADA System plays a central role (central control of all systems)
– Collection, storage and evaluation of data (Data Mining)
• Convergence of Energy- and Communication Networks
Bidirectional, fast, secure and reliable Communication
based on Fibre Optic is essential for future proof automation purposes
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Fibre to the Substation
Future Proof
Fibre Optic Infrastructure
Smart Meters FttH
Secure Networks
Scalable
Technology
High Reliability
Broadband
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Substation Automation
Active industrial ethernet switches in combination
with fibre optic networks are the basic infrastructure
for intelligent energy networks (Smart Grid).
They are also used to control FttH-concentrator-
stations (POP)
Ethernet Switch
(Industrial)
Transformer Substation FttH - POP
Automation
•Fire Alarm
•Access Control
•Air-Conditioning
•UPS
•Metering
•Power Quality
•Internal Telephony
•Network Mgmt
•Access Ports
•etc.
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Smart Street Lighting • Research Project to reduce OPEX for Street Lighting
• Metering of energy consumption of Street Lights (per cluster)
• FttS in combination with industrial Ethernet switches
• Connection of SCADA System with the Smart Metering System
• Usage of Universal Home Gateways
• Number of street lamps in Constance: ca. 10.000
Average energy consumtion per lamp: ca. 100W
Overall consumption: ca. 1MW
• Project-Goals:
– Automatic indication of defect lamps
– Cancellation of manual routine controls during daytime
– Transparent visualization of energy efficiency and consumption data (billing)
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Smart Street Lighting
Fibre Optic Network
IEC1107
(RS485)
Smart Meter System
SQL-Interface
SCADA System
Web-Interface, Data visualization
Substation Installation
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Summary • „Smart Grid“ is strongly related to automation aspects
• Complete grid automation cannot be done within a few years
• First Step: Distibution Grid - Substation automation is crucial
• Fibre optical networks are necessary to provide reliable,
fast and secure communication
• FTTH-Projects can generate huge synergy Potentials
in order to realize smart grid efforts
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Summary Provision mega-/gigabits!
Control power with kilobits!
Sell the rest!
(wikipedia.org)
Roland Stader Area Manager
AAT & Telecommunications
Stadtwerke Konstanz GmbH
Max-Stromeyer-Str. 21-29 • 78467 Konstanz
Tel.: +49 (0) 7531 803 343 • Fax +49 (0) 7531 803 77 343
www.swkn.de
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