The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 207643

TITLE OF THE SPEECH

Giovanni Valtorta, Enel Distribuzione

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOPACTIVE DEMAND: THE FUTURE OF ELECTRICITY

reliability

ACTIVE DEMAND AND NETWORK OPERATORS

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

DSO and Active Demand

Role •to ensure the distribution of electricity•to operate, to maintain, to develop the electricity distribution network

Stakes •to provide transparent and non discriminatory access to all network users•to operate the distribution network in a secure, reliable and efficient way

Expectations •to improve network control: voltage stability, network overloads, congestions and quality of supply• to improve network efficiency (network investment optimization, network losses)• to improve network use: to facilitate penetration of renewable generation, Electric Vehicle, etc..•AD is part of the smart grid development

AD Services • voltage regulation and power flow control• tertiary active power reserve• smart load reduction to avoid “blind” load shedding

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

Need for Coordination between players

3

- to ensure that load/generation variations determined by AD market do not have impact on the network security and technical quality of supply

- to avoid contradictory actions, e.g. opposite requests within the same area

- by informing the other System Operators about AD applications which could have impact on their network operation and/or can be in conflict or jeopardize AD products already bought on the market

- by being informed and validating every AD request in its area of responsibility

Coordination is needed

Coordination is done

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

4

• for service localization + technical validation needs,

• consumers “equivalent” from network operation point of view are grouped in Load Areas

• Load Areas can encompass: part or whole LV lines, one or more MV/LV substations, MV feeders, busbars...

• Macro Load Areas: aimed for the TSO needs (e.g. one or more HV/MV substations)

Information available for market players

Load Area i

Macro AreaPrimary SubStation

Load Area j

Primary SubStation

Secondary SubStation

Secondary SubStation

Interaction with AD players: Needs I

Location information: load areas

• published and updated by DSO/TSO

Consumer ID (point of supply code)

Local Area Code Macro Area code

xxxxxxxxxxxx yyyyyyyyy zzzzzzzzzz

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

Interaction with AD players: Needs II

5

The need for Technical Validation of AD Services

• Ensure coordination between DSO and TSO

• Ensure stability of the services provided by DSO and TSO (Quality of Service should not decrease with AD, but even be improved!!)

How is the technical validation process established?

• Interaction between Aggregator and DSO/TSO on service activation: Approval needed

• The concept of the Sensitivity Matrix, periodically updated by DSO/TSO

• The need for regulation in order to establish a transparent and non discriminatory framework

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

AREA CODE Maximum Flexibility up Maximum Flexibility down Payback allowed

Macro Area i 500 kW 100 kW n.d.

Macro Area j 200kW

Macro Area k

TSO SM

Sensitivity Matrix: An overview

6

• Definition based on DSO/TSO needs

• Sensitivity indexes given at load area level

• No DSO/TSO commitment, guidelines for facilitating approval

• Periodically updated by DSO/TSO

available to market players

DSO network and historical measurement

database

DSO algorithms

and processes

TSO coordination

DSO SM

TSO algorithms

and processes

AREA CODE Maximum Flexibility up Maximum Flexibility down Payback allowed

Load Area i 50 kW 10 kW

Load Area j

Load Area k

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

Interaction with AD players: Needs III

7

Delivering metering information to other players•Meter registers certified consumption on 15’ basis

•Forwarded to other players

•Metering information used for:

Service Assessment

Settlement among participants

Consumer monitoring (understanding)

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

DSO functional architecture

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

TSO Functional Architecture

TSO: Transmission System Operator DSO: Distribution System Operator EMS: Energy Management System SCADA: Supervisory Control and Data Acquisition RTU: Remote Terminal Unit AVR: Automatic Voltage Regulator

MARKETS

AND CONTRACTS

of services

MARKETS

AND CONTRACTS

Primary secondary

tertiary reserve. Eventual

reactive power market

DSO

AGGREGATOR

Different levels of optimization

AGGREGATOR

Different levels of

optimization and

aggregation

EMS

EMS

Different levels

- Existing tools - Sensitivity Matrix Computation - Sensitivity Matrix Publication - Reference signals provision - Coordination with the DSO

Other Information systems

TSO CENTRAL CONTROL LEVEL

SCADA

Different levels - Data Acquisition - Data Analysis - Telecontrol System

Market Tools

Different levels - Existing or adapted tools

AVR AVR

Sensors and auxiliaries

HV/MV substation

MV Controller

LOCAL INTELLIGENCE

RTU

IED

Paris, June 9th 2010

ADDRESS INTERNATIONAL WORKSHOP

Conclusions

10

The DSO and TSO functional architectures have been developed and presented

Next steps: • architecture implementation • development and test of prototypes

for AD service provision, DSO/TSO will

provide consumers location information for service delivery

technically validate AD services requests

provide metering information to other players and to consumers (via Energy Box)

The research leading to these results has received funding from the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 207643

THANK YOU