EWE in Germany Uses Apps to Analyze Impact of...

28.10.2016 1Esri GeoConX – EGUG 2016 – UT Smart Apps ©2016 AED-SICAD

EWE in Germany Uses Apps to Analyze Impact of Prosumers

Thomas Kindervater, EWE Netz GmbHGerald Kreuwel, AED-SICAD AG

Esri GeoConX – EGUG 2016, Phoenix (AR), USA

28.10.2016 2Esri GeoConX – EGUG 2016 – UT Smart Apps

Agenda

1. EWE’s role for sustainable energy systems

2. Assessing local network stability in GIS

3. Ideas for the future


EWE‘s role for sustainable energy systems


Electricity / GasTelecom

Sour

ce: E

WE

Net

z Gm

bH 2

015

and

EWE

Net

z Gm

bH w

ebsit

e20

15

Supply regions

2014 in numbers81.660 km of electricity network148 transformer stations18.060 substations and switch gear824.130 service points


EWE NETZ: Current sustainable share in energy supplyElectricity generation from sustainable and traditional energy sources supplied to EWE networks

SustainableTraditional

2012 201463 % 75 %

Source: EWE Netz GmbH 2015

Goals proposed by german governmentElectricity generation from sustainable and traditional energy sources

2014 up to 2050SustainableTraditional

80 %

28 %

Source: German government website 2015

Transition to sustainable energy supply

Xaver‘s impact:December 2013

94 %


A challenge to distribution networks

+124%

Energy sources: Wind, Solar, Biogas, Water, Gases (in MW)EWE NETZ

3,2473,737

4,264

4,808 5,000 5.159

2009 2010 2011 2012 2013 2014

Maximum network load per year

2.399 2.505 2.425 2.428 2.396 2.300

Installed power



Why does network connection assessment help?

A new energy producer or consumer requeststo be connected to the electricity network

A utility company cares to do so• in accordance with existing law (e.g. EN 50160)• cost-effective, but protective to network stability

Network connection assessment means to• evaluate the potential impact of one or more new connections• analyze scenarios with additional actions to take for stability• choose the most suitable scenario for each request


Assessing local network stability in GIS1. Goals2. Process3. Results


Initial goals to use GIS

Reduce process time of requests for new suppliers to 0.5 h

Harmonize process for network connection assessmentsthrough all regional offices• Network calculation• Documentation• Reliable reproduction

of results

0

5000

10000

15000

Number of requests



Meets critical thresholds

Manual data analysis

Calculate voltage level difference

for each affectedcable section

Evaluate stabilizing actions

Handwritten documentation using paper maps

Assessing the impact of a new solar panel manuallyNew solar panel

connection request

Scan and store digitized documents

+ additional measuresfor network stability

Evaluate result based on tables

and diagrams(EWE planning

principles)

Arrangefor network connection

Exceeds critical

thresholds

Introducean adjustable transformer

Switchnetwork areas …

Repeat until ….

Reinforce network with additional

cables

Source:EWE Netz GmbH 2015


Meets critical thresholds

Exceeds critical thresholds

Simulate stabilizing actions

Assessing the impact of a new solar panel in GIS

New solar panel connection request

Arrangefor network connection

Reinforce network with additional

cables

Introducean adjustable transformer

Switchnetwork areas …

Simulate effect on network

stability

Repeat until ….

+ additional measuresfor network stability

Source:EWE Netz GmbH 2015


Example 1

Station 1 New application for solar panel

Calculation 1 returns„tension too high“Scenario 1: Evaluate reinforcement cableand re-calculate

Scenario 2: Consider Smart Grid Technology (adjustable transformers)and re-calculate


Example 2

Station 1 Station 2

D Box 1 D Box 2

Too much load here

Close switch

Open switch

New supply situation,re-calculate – better?

Open switch


Access to data sources for each assessment

Access

Quickfind

GIS

SAP-PM

EInS (suppliers)

easy+ (documents)

Planning principles

Access

Quickfind

GIS

GIS

GIS

GIS

Planning principles

Network Connection Assessment

manually GIS based



Assessing local network stability in GIS

Software Demo


Results

Shorter calculation time Results are closer to real conditions

Source: EWE Netz GmbH 2014 + 2015


Whenever time is costly …

Voltage level differencehad to be calculatedbased on each cable section



… it limits the possible extent of analysis

Manual data analysis allowssufficient evaluation for each section

Automated network calculation modelfor the same section providesalmost the same results

BUTresults only represent individual sections,while network changes influencenot only section stability,but all network elementsfed by the same station



New solar panel

Identified overload ofa cable

Voltage change from surrounding suppliersevaluated

Higher impact on voltage level difference than expected for this section

Identified voltage problems

Cable section that could be manually evaluated



Results

Shorter calculation time Results are closer to real conditions Evaluation with visual feedback

• Traffic light system• Overview for each network fed by the same station• Compare results for scenarios and calculation types

Enhanced data quality through combination of data sources



Advantages of a “tailor-made” network

Optimize usage of existing network capacities

Guarantee voltage quality (e.g. EN 50160)

Protect network equipment from overload

Reduce or delay costs for network expansion

Simulate impact of new technology, e.g. intelligent substations, to operate low voltage with smart grid solutions



A successful collaboration from a new approach to a product

Ideas – Scenarios – Data – Pilot and productive use

Concept – Implementation (Project)

Concept – Implementation (Client)

Concept – Architecture – Implementation (Server)


UT Smart AppsPLAN – CALC - EDIT

@I

I

I

I


UT Smart Apps PLAN – CALC – EDIT

Studies with different scenarios

Simulation of the switch positions

Simulation of the effect of new service points or feed-in points (e.g. photovoltaïc)

Simulation of network stabilizing actions / smart grid technology

Network calculation („load flow“) integrated

Bill of Materials


Architecture: UT Smart Apps

Network Planners:Planning,Network Assessment,Network Calculation

Servers

Intranet

Web Clients

Esri Geodatabase

Professional Network Calculation Package

(Powerfactory)

Type of Calculation can be adapted:- Load flow- Short Circuit- etc


NCS Calculation Engine

UT Smart Apps – Process & Data Flow

COLLECT FROM_GIS

TO_GIS COLLECT

Import

ExportViewing-DB9.3.1

TRACE

Calculate

APPLY MERGE Arc-Node

Planning-DB 10.2

External Systems

DB Views

GISProduction


Ideas for the future


Ideas for the future

Advanced scenarios

Integrated statisticsShort circuit calculation

Network management

Time series scenarios

3. Takingsimulationto the next level …

Station internalsSwitches and statesCircuits

1. Electricity data+ network analysis

Topology

Supplied PowerLoad per year

Network calculation

2. Calculation,Planning +Simulation

Modified assetsincl. switches and trafos

Simulation of various planning scenarios

….

Planned, new assets

….

Source: EWE Netz GmbH 2014 + 2015


Sources

[EWE Netz GmbH 2015]Presentation „SmartGIS II bei EWE NETZ“ (AED-SICAD Kongress der Versorgungswirtschaft) by Sven NiedermeierDate of presentation: 24.09.2015 + additional slides: 25.09.2015

[EWE Netz GmbH 2014]Presentation „ Anschlussbeurteilung – Stand der Produktentwicklung“ (AED-SICAD Kongress der Versorgungswirtschaft)by Thomas KindervaterDate of presentation: 24.09.2014

[EWE Netz GmbH website 2015]https://www.ewe-netz.de/unternehmen/zahlen-daten-fakten.phpDate of online query: 01.10.2015

[German government website 2015]http://www.bundesregierung.de/Webs/Breg/DE/Themen/Energiewende/Fragen-Antworten/1_Allgemeines/1_warum/_node.htmlDate of online query: 28.09.2015

https://www.ewe-netz.de/unternehmen/zahlen-daten-fakten.php

http://www.bundesregierung.de/Webs/Breg/DE/Themen/Energiewende/Fragen-Antworten/1_Allgemeines/1_warum/_node.html


Thank you for your attention!

Thomas KindervaterEWE NETZ GmbH

Cloppenburgstr. 30226133 Oldenburg

[email protected]

www.ewe-netz.de

Gerald KreuwelAED-SICAD AG

Carl-Wery-Str. 2281739 Munich

[email protected]

www.aed-sicad.de

mailto:[email protected]

http://www.ewe-netz.de/

mailto:[email protected]

http://www.aed-sicad.de/

EWE in Germany Uses Apps to Analyze Impact of...

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