20111027 esri euc bertoli smart energy

The impact of Distributed Generation on network security ESRI EUC Madrid, 27 October 2011, Tomaso Bertoli

How Distributed Generation impacts network security? » Gruppo Dolomiti Energia

Network Security of Low Voltage Feeders STET Pergine

PESSE review 2012

Network Security and DG?

Gruppo Dolomiti Energia

6000 sqkm service area 500k inhabitants 8 service area + STET

3150 km 20kV 4470 MV>LV 6565 km 400V 140k service points 340k meters (En) + STET Pergine 18k
























3150 km 20kV 4470 MT>BT 6565 km 400V 140k service points 340k meters (En) + STET Pergine 18k

Integrated Information System

Network Information System

» ArcGIS \ ArcFM» Network topology» Geometric Network» Versioning Archiving» Feeder Manager

Device Locations

Customer Data and Work orders

» SAP IS-U» Clients Sales \ Users Distribution» Contracts» Devices» SAP GUI § Bapi

Device Location

» un-bundling

Like at home when the meter “trips” because oven and dryier and … are used together »

Network security for Low Voltage feeders

“ more a matter of probability than physics ”

Electric Analysis LV – V1 (2008)

• Trace Geometric Network return tree topology • Current Contract

Loads from SAP• Test Loads from

design

• Design Version

Electric Analysis LV – V1 (2008)

• Parameters• Contract Voltage• % of safe use• Power …• Paid for• Current contract• Available

• Probability concurrence• Probability \ Acceptable

Risk of black-out

Electric Analysis LV– V1 (2008)

• Output XLS• Max Current• Voltage Drop• Available power• Losses• Short Circuit Current

August 2010 – LV Feeder start tripping »

Managing Energy from renewable sources

Inversion of energy flowsLow Demand Max Production But how is it possible is DG is under 5% ? »

Current and future Electric Distribution

(source: EPRI, 2009 )

Emulation …

Clustering of Distributed Generation

Why clusters do not form?

PV (Photo Voltaic) Distributed Generation»


• 50 MW total PV peak power• 6060 PV installations• 9000 LV Feeders

Average by feeder• < 0,7 installations• 9 kW

9000 total LVF

2890 LVF with PV

290 10° Percentile

29 1° Percentile

• 0,7 • 9 kW

• 2• 18 kW

• 6• 97 kW

• 10• 236 kW

• installations• Power kW

Average by feeder

PV (Photo Voltaic) Distributed Generation »


• 50 MW PV total peak power• 1400 MW Contract power on LVF• On average PV 3% of Contract Power

But average values are missleading• Over 100 feeders have ratio PV / Contract power > 100%• 10° percentile of Feeders has PV / Contract power > 40%

Electric Analysis LV BT – V2 (2011)

• Generators • SAP IS-U• design

• Parameters• Power Modulation• Generation Modulation

Usual scenarios:• Late afternoon workday Winter• Weekend noon Summer

STET Pergine – PESSE review 2012

“small” multi utility in side valley

18k Electric meters Water\WasteWater Gas Garbage Street Lighting

PESSE, Emergency Plan for the safety of Electric SystemUnder the coordination of Terna (HV transmission) Distribution companies disconnect load in a planned and selective way, in order to avoid un-controlled black outs.

28 september 2003

PESSE – What ? Why ?

PESSE – How it works?

All residential and commercial customers are divided in groups For each group a rolling outage is planned for up to 1,5 hours per day.

PESSE – How it works ?

Optimize the groups » “domestic customers with life saving

equipment are excluded from the planned outages”

Distributed Generation – not only PV

PESSE Update 2012

PESSE Update 2012

GeoDataBase Versions to simulatedifferent PESSE plans \ groups »

PESSE Update 2012

ArcFM Feeder ManagerRecalculates MV and LV feeder »

PESSE update 2012

DBMS Server side SQL does all the group by \ sumNo Export, Fast and Reproduceable »

PESSE update 2012

Transforminga mountainof data inusefullusableInformation »

Data &Processes

data is trust worthy (updated and

complete) only as long as it is produced or used by a primary

company process

Robust Flexible

SoftwareAEEG releases each

year new rules, positive feed-back on

processes that can be managed and

optimized

Competent People on

Processes & Sw

dedication and (self)training to

exploit all the power in Sw (old and new) of the tech pyramid

3 key factors to “do more with less”

www.sinergis.it | [email protected]

www.dedagroup.it | [email protected]

Thank you for the attentionTomaso BertoliSolution Manager UtilitiesCoordinator of Multi Utility User Group

For more info: www.gismart.eu

Special thanks to Mariano Fronza, Dolomiti Reti (GDE)Stefano Silvestri, Dolomiti Reti (GDE)

Dario Dallepiatte, STET Pergine

To be Smart...

Smart Local Governments

Local GovernmentsUsing GIS-based Tax Solutions to be very effective in collecting real estate taxes and to fight tax elusion

Smart Multi Utilities

MultiutilitiesUsing GIS-based Solutions in order to better run the distribution network, reduce and manage power downwtime

Smart Provinces And Regions

Province e RegioniSoluzioni per il monitoraggio e il controllo permettono una gestione più efficace del traffico e una migliore manutenzione delle infrastrutture stradali

10 Regions 18 Provinces 3 Regional Environment Agencies

(ARPA) 2 Government Departments 10 Multi Utility Companies 15 Main Cities More than 50 Smaller Municipalities

and Associations of Smaller Cities

Smart Local Governments

Sinergis and Dedagrouphave been learning for morethan 20 years from:

Thank you for the attention

For more info: [email protected]

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20111027 esri euc bertoli smart energy

Technology