December 19, 2019


Ancillary services from distributed energy sources

Ancillary services from distributed energy sources for a secure and affordable European system: main results from the SmartNet project

In Europe, there is a sharp increase in reserve needs for coping with the variability introduced by a steadily increasing RES share in the generation. The big challenge is to extend the possibility of providing Ancillary Services (AS) – frequency and voltage control, congestion management, etc.) to entities connected to the distribution network.
All these issues have been addressed by the SmartNet European research project (http://smartnetproject.eu/), which aimed at comparing different TSO-DSO interaction schemes and different real-time market architectures with the goal of finding out which would deliver the best compromise between costs and benefits for the system. The objective of this three-and-ahalf year project (2016-2019) was to develop an ad hoc simulation platform which models all three layers (physical network, market and ICT), analysing three national cases (Italy, Denmark, Spain).

In addition to providing information on the main results obtained by the SmartNet project, this report include some information on the status quo of the procurement of ancillary services in selected countries. A questionnaire was formulated and distributed among the members of ISGAN Annex VI. The questionnaire contained the following questions:

  • What system services are provided in your country (voltage regulation, frequency regulation, inertia, support to power quality…)
  • Who is providing them (generators and/or loads?)
  • Modalities to collect ancillary services: via markets, contracts, compulsory non-paid services… Please describe in detail.
  • Are generators and/or loads located in distribution admitted to provide system services? If yes, how is TSO-DSO interaction carried out (please describe in detail)
  • Are there plans from the national regulator to activate demand side management or to collect inputs from generators connected to distribution for the future? Which timeframe? Are pilot projects already active?

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August 25, 2019


micro vs MEGA grids

How do these trends in the development of the power systems influence each other?

Annex 6 has started an activity to study these trends which are largely influencing the decisions in the evolution process of the power grids.

In this work the trends are referred to as the micro grid and the mega grid trends, where the micro grid perspective focus on local solutions while the mega grid perspective focus on system or even intra-system wide solutions.

The objective of this work is to present a critical assessment of these trends, based on the questions:

  • Does one trend outcompete the other?
  • Does increased micro grid investments increase the need for mega grid investments, and vice versa?
  • To what extent can micro grids benefit from mega grid solutions, and vice versa?

The intention with this work is not to proclaim one solution being superior to another, instead it is intended to provide insights in the needs of considering both perspectives in the decision-making process for the sustainable development of the power grids.

The work involves parties from: Norway, Sweden, Germany, Belgium, Spain, Italy, France, Canada, South Africa, and India

 

Activity plan:

  • 15 May 2019, Workshop Brussels: including presentations from NTNU, CIGRE and ENGIE
  • 2-3 October 2019, Workshop and meeting in Montreux: including presentations from RISE, NTNU, CIGRE, Power Grid Corporation of India,  Universidad Pontificia Comillas, KU Leuven, SuperGrid Institute, OFFIS, and Chalmers University of Technology
  • Autumn 2019: development of activity report

 

How to contribute:

Contributions to this activity are welcome as:

Workshop participation; Input to dedicated report sections; Review of the activity report

For additional information and interest to participate in this activity, please contact:

Professor Irina Oleinikova, Irina.Oleinikova@ntnu.no

Emil Hillberg, Emil.Hillberg@ri.se

 

Results:

Workshop and meeting in Montreux

A highly successful event, gathering a total of 30 participants, with presentations (available here) from Italy, India, Spain, Belgium, France, Germany, Norway and Sweden. The participants at these two meeting days have shown a high level of engagement and it has been highly valuable to learn from each other.

In short, we can conclude that these meetings were very productive and successful in gathering a large amount of knowledge. We believe that the meetings were also successful in reaching their goals to:

  • Support future collaboration in the ISGAN Annex 6 activity on micro vs MEGA grids
  • Prepare messages for the report
  • Understanding of the next steps of the report development

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March 22, 2019


Flexibility In Future Power Systems

Power system flexibility: the ability to manage change

Solutions providing advances in flexibility are of utmost importance for the future power system.
However, flexibility is not a unified term and is lacking a commonly accepted definition. The flexibility term is used as an umbrella covering various needs and aspects in the power system which complicates the discussion on flexibility and craves for differentiation to enhance clarity.

ISGAN Annex 6 has dedicated an activity on flexibility with the intention to support an increased understanding of the flexibility concept, proposing categorisation of flexibility needs in the power system.

This activity resulted in several publications with contributions from parties in: Sweden, Austria, Canada, France, Germany, Italy, Norway, and Switzerland.

 

  • The final results and conclusions of this activity were presented at a dedicated ISGAN Webinar, November 2019.

 

 

  • In the Discussion Paper (DOI: 10.13140/RG.2.2.22580.71047), the full report is provided from this activity, including description of the flexibility categories: Flexibility for Power, Flexibility for Energy, Flexibility for Transfer Capacity, and Flexibility for Voltage.

 

 


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February 7, 2019


ICT aspects of TSO-DSO interaction

Data exchange and ICT requirements along organizational interaction between TSO and DSO

The main objective of this report is to assess the future data exchange and ICT requirements concerning the interaction of distribution and transmission networks, by identifying key challenges that deserve attention.

This report is based on a questionnaire regarding the ICT aspects of TSO-DSO interaction. The questionnaire contained questions regarding technical aspects (e.g. technical connection points between TSO and DSO in the countries), regulatory aspects, flexibility markets, drivers and barriers for TSO-DSO interaction as well as experiences from projects and lessons learned. The questionnaire was sent to the Annex partners and nine responses were collected. In particular Belgium, Germany, Italy, Finland, Sweden, United States, China, India and Austria have sent comprehensive answers.

Due to the integration of renewable energy sources, the interaction between TSOs and DSOs gets more and more important to handle the high volatility of generation and unexpected load growth in power grids. Additionally, new market mechanisms and the connected flexibilities require a closer interaction between TSOs and DSOs.


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