- GREDOR Gestion des Réseaux Electriques de
Distribution Ouverts aux Renouvelables
Project scope
Présentation du projet
Moulin de Beez, 29/04/2015
Raoul Nihart, EDF-Luminus
Why a project?
Introduction of Renewable Energy Sources (RES) in electric distribution grid
induces a change of paradigm
”Going from centralized energy production to decentralized production”
“Going from unidirectional power flows to bidirectional power flows”
BUT this change has not been followed by the distribution grid design!
Today’s situation
Distribution Grid was originally designed to bring electricity to the final
consumers. It is now also used as an entry point for renewable energy
thus increasing the risk of congestion!
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
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Why a project?
This change of paradigm is associated with
 Growing electrification (Electric Vehicles, Heat Pumps,… )
 Challenges induced by the intermittent production of RES (solar, wind,…)
leading to a need for huge changes in the design and operation of distribution grids
If nothing changes
 Evolution of RES integration will slow down
 Quality of power supply may decrease
 Distribution costs may increase
GREDOR is a research project funded by the Walloon Region with two main
objectives
1. Define and Analyze market models including e.g. integration of flexibility
services, renewable energy sources…
2. Implement decision making support tools for distribution grid
operators in order to help them evolve in this new landscape by taking
optimal decisions for the social welfare
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
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Project’s Partners
Consortium of 7 Partners
Academics
Industries
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
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Project organization
Total Budget: 4,3 M€
Five main tasks shared between the Partners
1. Design and recommendation for a new market model
2. Design and development of a decision making support tool for grid investments
3. Design and development of a decision making support tool for short term
congestion management
4. Design and development of a decision making support tool for real time
congestion management
5. Customization of production and consumption data to create use cases for testing the
different decision making systems
Project leader: University of Liège (ULg)
Supervised by the CWaPE (Commission Wallonne Pour l’Energie)
Website: https://gredor.be/
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
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Objectives of the project
WP 1
Market Models + Scenarios

How to deal with actual and new stakeholders in order to optimize RES integration, achieve active
network management, avoid/prevent congestion and call for flexibility services in such a way that
social welfare is optimized and system balance is ensured
Long Term Grid
Investments
Short Term Congestion
Management

How to define the path
towards smart grids

Which type of
investments should be
made?

How to take into account
RES and flexibility
services in investment
decisions?


Real-Time Congestion
Management
How to define action plan
(network reconfiguration,
flex services,…) in order
to manage short term
congestion?

How to solve in real-time
a congestion

Which action should be
taken?
Which actions may affect
other stakeholders ? How
to deal with this? Which
data should be
exchanged?

Which data should be
exchanged?
WP 2
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
WP 3
WP 4
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Timeline and main deliverables
Timing: 48 months
 Started: February 2013 & Deadline: January 2017
 The five tasks are running in parallel
 Task



1 and task 5 are feeding Tasks 2, 3 and 4 with
Scenarios and local instantiations
Use cases
Load and flexibility profiles
 Current status: mid project, different market models under discussion, decision
making systems under development
Main deliverables
 Scientific reports: detailed description of the solutions /results
 Decision making support tool for grid investments, short term and real time
congestion management
GREDOR - Gestion des Réseaux Electriques de Distribution Ouverts aux Renouvelables
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