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

r.stader@stadtwerke.konstanz..de

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

3

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

4

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

5

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)

6

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!

7

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“

8

FttH Activities in Constance

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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

10

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

12

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.

14

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)

15

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

17

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

r.stader@stadtwerke.konstanz..de

www.swkn.de