Conference:Experimental research and DER integration

in the EU Energy System

Milano, October 10th 2013c/o RSE

The FP7 Grid4EU Demonstration Project within the EEGI roadmap:

a focus on the Italian Demo experience

Lilia Consiglio, Enel Distribuzione SpA

Enel: a world dimensionFocus on major areas of presence

• Lead by 6 DSOs (covering more than 50% of the metered electricity customers in Europe)

• 27 partners (Utilities, Energy Suppliers, Manufacturers, Research Institutes)

• Duration: 4 years (November 2011 - Jan 2016)

• Total Cost: 53M€ ca (Max EC grant 25.5 M€ ca)

• Project Coordination: ERDF• Technical Director: ENEL Distribuzione• Chairman of General Assembly: IBERDROLA

Grid4EUA European smart grids project

• Increasing network hosting capacity of Renewable Energy Sources

• Implementing active, more efficient participation of customers to

electricity markets (Active Demand)

• Implementing active control of Distributed Energy Resources (DER)

• Secure energy supply - Network reliability

• MV / LV network Supervision & Automation

• Improving peak load management through increased interactions

between network operation and electricity customers

• Electric Vehicles, Storage

• Micro Grids & islanding

Main topics

Demonstrator 1 in Reken, Germany

Demonstrator 2 in Uppsala, Sweden

Demonstrator 3 in Castellón, Spain

Demonstrator 4 in Forlì - Cesena, Italy

Demonstrator 5 in Vrchlabí, Czech Republic

Demonstrator 6 in Carros, France

Six Demonstrators

Connections [No.]Cumulative Data

Connected Power [MW]Cumulative Data

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Ante 2007

2007 2008 2009 2010 2011 2012

LV MV HV

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Ante 2007

2007 2008 2009 2010 2011 2012

LV MV HV

429,844 PV

(98,9 %)14,843 PV

(62,5 %)

Most RES-Power is connected to MV Network

Data Source: Enel Distribuzione – December 2012

The development of RES in ItalyConnections to Enel Distribuzione’s network

Increase the Medium Voltage (MV) network's hosting capacity for Distributed Energy Resources (DER, in particular solar), introducing Active Control and Demand Response of  MV generators, controllable 

loads and storage

The Italian DemonstrationObjective description

Milano, RSE 10 Oct 2013

Conference: “Experimental research and DER integration in the EU Energy System"

Project is located in Forlì – Cesena(Emilia Romagna, Italy)

2 HV/MV substations, 20 MV lines,110+ MV substations andabout 35,000 LV customers impacted

High penetration of RES, mostly photovoltaic(about 105 MW)

Low consumption area

Back-feeding phenomenon from MV to HV

Site description (1/2)

Milano, RSE 10 Oct 2013

Conference: “Experimental research and DER integration in the EU Energy System"

HV/MV Substation "Cesena Ovest"

HV/MV Substation “Quarto"

MV/LV Substation “Smistamento"

Site description (2/2)

The realization of an advanced control system communicating with the renewable generators, HV/MV & MV/LV substations and storage facility.

The realization of an “always on”, IP standard-based communication solution connecting all the relevant nodes in the network (wireless, wired and PLC)

The installation of a storage facility (1 MVA / 1 MWhapprox.) connected to a MV power line

The new control systemBasic concepts

VoltageRegulation

MeasurementAcquisition

Anti-islanding DemandResponse

Use Cases

• VR identifies optimal network working conditions (V and I inside allowed ranges)

• VR relies on different controllable resources: – HV/MV substations On Load Tap Changer (OLTC) and capacitor banks– Reactive power injection/absorption by Distributed Generation– Energy Storage System (ESS): active and reactive power injection/absorption

• Energy Storage System State of Charge (SoC) is managed according to load and generation forecasts

• Objective function: to minimize the overall cost of control actions

The advanced voltage regulator (VR)Developed by RSE

Test Network (MV bus-bar, 2 feeder)• 139 MV and MV/LV nodes (15 e 20 kV) • Total load P = 15.51 MW e Q = 7.58 Mvar• 19 generators, total generation capacity P = 9.48 MW Q = 4.165 Mvar

(PV; Mini-Hydro, Biomass, etc).

More than 32 test cases defined• Load profiles (summer/winter, working days/not working days)• Storage connection• Controllable generators (only Q)• Priority of less expensive solution(“costs”)

Off-line testsTest network

Off-line testsVoltage profiles

Off-line testsHosting capacity calculation – first results

2012 2013 2014 2015

11/2011

01/2016

Specification and system development

Full operation and results analysis

Field tests

Field analysis and implementation

Lab tests

Work progress

Thank you for your attention!

BACK - UP

Source: EPIA

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Germany Italy Japan US Spain China France Belgium Australia UK Rest of the World

Until 2010 2011

GREATEST WORLDINCREASE in 2011

(9.000 MW, 32% OF THE OVERALL CONNECTED POWER)

PV growth in Italy in 2011International benchmark