This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 731218
Demonstration of Intelligent grid technologies for renewables Integration and Interactive
consumer participation enabling Interoperable market solutions and Interconnected stakeholders
WP 4 – Self-sustainability Facilitation
Stakeholder feedback and acceptance report in Slovenia
D4.4
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InteGrid GA 731218 2 | 79
Topic Demonstration of smart grid, storage and system integration technologies with increasing share of renewables: distribution system
Call LCE 02 - 2016 - SGS
Grant Agreement
Number
731218
Project Acronym InteGrid
Document D4.4 Stakeholder feedback and acceptance report in Slovenia
Type (Distribution
Level)
☒ Public
☐ Confidential
Due Delivery Date 31.12.2019
Date of Delivery 03.08.2020
Status and Version V1
Number of Pages 81
WP Responsible Elektro Ljubljana
Deliverable
Responsible
cyberGRID
Author(s) Ursula Krisper, Peter Nemcek
Reviewer 1 Mahmood Bakhtawar Shah | KTH
Reviewer 2 Nuno Marinho | EDP CNET
File Name InteGrid_D4.4_Stakeholder feedback and acceptance report in
Slovenia_V1
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Document History
Version Issue Date Content and Changes
0.1 14.01.2020 Initial version
0.2 03.02.2020 Upgrades
0.3 08.04.2020 Internal review and corrections
0.4 04.05.2020 Addition of experience with DER operators
0.5 31.07.2020 Incorporation of reviewer’s comments and addition of second round of
grid users survey after the end of the demo in June 2020.
1.0 03.08.2020 Submitted version
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Acknowledgements
The following people are hereby duly acknowledged for their considerable contributions, which have served
as a basis for this deliverable:
Name Partner
Ursula Krisper Elektro Ljubljana
Boris Turha Elektro Ljubljana
Sara Lupo Elektro Ljubljana
Peter Nemcek cyberGRID
Christoph Gutschi cyberGRID
Nicole Klyma cyberGRID
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Executive Summary
The present document comes under the scope of Work Package 4 “Self-sustainability Facilitation”, as an
output of Task 4.3 “Management and execution of the use cases / architecture” and Task 4.4 “Collection of
data from the field tests of the demonstrated use cases / architecture”.
The deliverable describes the real feedback from the industrial and commercial end users (consumers and
prosumers) and other stakeholders of the distribution system operator (DSO), like the transmission system
operator (TSO), the regulator and academia in Slovenia.
The scope of the work was two-fold:
- Grid user acquisition for identification and connection of at least 10 commercial and industrial
flexibilities to the technical as well as the commercial Virtual Power Plant (VPP).
- Dissemination of InteGrid project results and collection of stakeholder feedback from industrial and
commercial end users and other DSO grid stakeholders.
The grid user acquisition was conducted in four steps:
- Identification of the most suitable MV end users for provision of DSO ancillary services (e.g. voltage
regulation).
- Phone calls with all 25 identified target end users.
- Face-to-face (f2f) meetings with 20 end users and signature of letters of intent with some of them.
- Connection of 10 end-users to the VPPs.
For the dissemination and stakeholder feedback phase, a one-day workshop was organized in Ljubljana on
June 19th, 2019. The participation was moderate, with 18 participants, though covering most of the highly
relevant stakeholders, like TSO, the regulator and academia.
The key-note speaker of the workshop was Mr. Jan Kostevc, Infrastructure Regulation Officer from the
Agency for the Cooperation of Energy Regulators (ACER) who talked about the regulatory perspective on
innovation investment and concluded with the following messages:
• To incentivise innovation, we need to incentivise its implementation.
• Reward efficiency, and innovation will follow.
The following project presentations focused mostly on the demonstrators and business models. The
discussion about business models was supported by an interactive online poll tool, which enabled instant
feedback from the audience. Four questions with several predefined answers were posted and one
question was prepared for discussion. The results were:
1. What is the main challenge for end-users to be overcome in order to provide their flexibility?
Answer with most votes: Regulation is not well defined yet.
2. What is the main barrier for DSOs to use the potential of DER flexibility?
Answer with most votes: Economic incentives for DSOs are still not in place.
3. What is the main obstacle for the development of aggregation and especially the VPP concept?
Answer with most votes: Low revenue in aggregation (very large portfolio is needed).
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4. What are the barriers to common platforms (like a grid and market hub) to deliver their potential?
Answer with most votes: Low interest of end-users to use the platform and provide data.
5. How can R&I projects like InteGrid be more active in the policymaking process?
This question was raised for discussion. It brought up different views from different stakeholders
(regulator, grid management – operational and investment, technology developments, etc.). As a
general feedback, the workshop was praised as well organized and as an efficient tool for the
dissemination of R&I results for targeted audiences. Such workshops would improve the
project’s impact in policymaking processes.
The entire workshop presentations can be found in the Annex A of this deliverable.
Additionally, the present document collects the experiences and good practices in engagement of DER
operators for participation in research projects and in organising field tests, and it explains how to
overcome typical barriers.
The final activities undertaken by Elektro Ljubljana as the Slovenian pilot leader were meetings and a final
workshop held as web-conference. The document summarizes the stakeholder’s opinion on the importance
of proper flexibility identification, acceptable duration of activations, the economic drivers, and the suitable
price concept. The main learnings from these final stakeholder consultations are the following:
• With professional support, as provided by Elektro Ljubljana in InteGrid, some users were able to
identify additional flexibility potentials. InteGrid provided guidance to the grid users and to
potential flexibility providers on how to discover their flexibility potential and to learn about good
use cases.
• Users were not willing to guarantee their participation in any project to provide flexible units to
support grid operations without having a strong and predictable economic driver.
• A minimum duration of activation of two hours is considered as too long. One hour would be ideal.
A VPP seems to be a good option to deal with the gap.
• When addressing the question about flexibility price definition, participants stated that it should
depend on the availability and on local conditions. If some grid sections would show a higher need
for flexibility, then also the price for flexibility provision should be increased in these grid sections.
• There are no conceptual barriers preventing the implementation of the InteGrid concept into
reality.
The fruitful activities of the Slovenian demonstration leader could be proven by the number of grid users
participating in the VPP, their adjusted behaviour during the activation tests, and the highly motivated
participants of the workshops. The key element is clear communication, if possible held in native language,
to ensure participants understand what is happening with the flexibility they are providing and that
flexibility provision for ancillary services can surpass the key obstacle that cost can represent.
The number of highly motivated stakeholders participating in the final meetings verified the success of
stakeholder engagement activities in the InteGrid project and in particular of the Slovenian demo leader
Elektro Ljubljana.
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Table of Contents
Acknowledgements __________________________________________________ 4
Executive Summary __________________________________________________ 5
Table of Contents ____________________________________________________ 7
List of Figures _______________________________________________________ 9
List of Tables _______________________________________________________ 10
Abbreviations and Acronyms _________________________________________ 11
1. Introduction _____________________________________________________ 13
1.1. Purpose of the Document __________________________________________________ 13
2. Methodology ____________________________________________________ 14
2.1. Direct phone calls ________________________________________________________ 14
2.2. Meetings _______________________________________________________________ 15
2.3. Workshop ______________________________________________________________ 16
2.3.1. Invitation ___________________________________________________________________ 16
2.3.2. Workshop program___________________________________________________________ 16
2.4. Meetings after the end of the demonstration period ____________________________ 17
2.4.1. Invitation ___________________________________________________________________ 18
2.4.2. Gathering of feedback ________________________________________________________ 18
2.4.3. The questionnaires ___________________________________________________________ 19
3. Results of meetings and workshops __________________________________ 21
3.1. Direct calls to engage the grid users __________________________________________ 21
3.2. Meetings _______________________________________________________________ 22
3.3. Results from the Ljubljana workshop _________________________________________ 23
3.3.1. Participation ________________________________________________________________ 23
3.3.2. Presentations _______________________________________________________________ 24
3.3.3. Online poll _________________________________________________________________ 24
3.4. Results of the final meetings after the end of the demonstration period _____________ 26
3.4.1. Results gathered from grid users ________________________________________________ 26
3.4.2. Results gathered from other stakeholders _________________________________________ 27
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4. Engagement of end users to participate in the demonstration activities ____ 28
4.1. Measures and agreements to motivate DER operators to participate ________________ 28
4.2. Main concerns of DER owners impeding the participation in the project _____________ 29
4.3. Good practices for organisation of activation tests ______________________________ 30
5. Summary and conclusions __________________________________________ 31
References ________________________________________________________ 34
Annex A: Workshop presentations _____________________________________ 35
InteGrid project presentation by Ricardo Mendes Andre (EDP) and Ricardo Bessa (INESC TEC)35
Keynote speaker, Mr. Jan Kostevc, Infrastructure Regulation Officer at the Agency for the
Cooperation of Energy Regulators _______________________________________________ 49
Presentation of the pilot in Portugal by Ricardo Mendes Andre, EDP ___________________ 52
Presentation of the pilot in Slovenia by Boris Turha, EL LJ ____________________________ 61
New business models enabled by smart grid technology by Leandro Lind, IIT - Universidad
Pontificia Comillas ___________________________________________________________ 65
Annex B: Invitations to stakeholders ___________________________________ 74
Invitation to first workshop on June 2019 _________________________________________ 74
e-mail sent to the stakeholders ______________________________________________________ 74
Initially planned workshop program __________________________________________________ 74
Invitation to the final workshop in June 2020 ______________________________________ 75
Annex C: DER connected to the VPPs ___________________________________ 77
Annex D: Letter of intent _____________________________________________ 79
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List of Figures
Figure 1: An example of a LoI signed by end user _____________________________________ 22
Figure 2: Workshop participants __________________________________________________ 24
Figure 3 : e-mail to invite the grid users to the final workshop___________________________ 75
Figure 4 : Announcement of the final workshop with Doodle ___________________________ 76
Figure 5 : Skype meeting invitation to the final workshop ______________________________ 76
Figure 6: tVPP flexibility resources (real-life end-users and simulated resources) ____________ 77
Figure 7: cVPP flexibility resources (real-life end-users and simulated resources) ____________ 78
Figure 8: An example of a LoI signed by an end user __________________________________ 79
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List of Tables
Table 1: Final workshop agenda __________________________________________________ 17
Table 2: Overview of participants of the final workshop _______________________________ 19
Table 3: Type and amount of acquired flexibility _____________________________________ 21
Table 4: The business type and number of the workshop visitors ________________________ 23
Table 5: Schedule of the workshop in Ljubljana ______________________________________ 74
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Abbreviations and Acronyms
ACER Agency for the Cooperation of Energy Regulators
API Application Programming Interface
AD Architecture Description
AMI Advanced Metering Infrastructure
BMS Building Management System
CAMM Control Actions Management Module
CHP Combined Heat and Power
cVPP Commercial Virtual Power Plant
DER Distributed Energy Resources
DMS Distribution Management System
DR Demand Response
DRES Distributed Renewable Energy Source
DRMS Demand Response Management System
DSO Distribution System Operator
EC European Commission
EFTA European Free Trade Association
EL LJ Elektro Ljubljana
ESCo Energy Service Company
ESS Energy Storage System
EV Electric Vehicle
f2f Face-to-face (meetings)
FAT Full activation time
GIS Geographic Information System
gm-hub Grid – Market Hub
HEMS Home Energy Management System
HLUC High Level Use Case
HMI Human Machine Interface
ICT Information and Communication Technology
IED Intelligent Electronic Device
KPI Key performance indicator
LV Low Voltage
MCQ Multiple-choice Questions
MPOPF Multi period optimized power flow
MV Medium Voltage
NIST National Institute of Standards and Technology
OMS Outage Management System
OPF Optimal Power Flow
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PUC Primary Use Case
KPI Key Performance Indicator
WP Work Package
RES Renewable Energy Source
RTU Remote Terminal Unit
SCADA Supervisory Control and Data Acquisition
SG Smart Grid
SGAM Smart Grid Architecture Model
SRS Stockholm Royal Seaport
TRL Technology Readiness Level
TSO Transmission System Operator
tVPP Technical Virtual Power Plant
VPP Virtual Power Plant
WFM Workforce Management
WP Work package
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1. Introduction
The communication and dissemination activities are essential for the overall recognition and success of the
project. Even more important are the activities which are dedicated to receiving feedback from the main
stakeholders. The InteGrid consortium prepared a detailed Communication and Dissemination Plan, with
the aim to:
• outline main objectives of the dissemination activities,
• identify target audiences for each communication objective,
• define tools and channels to be used and the activities required to reach targeted audiences,
• identify the dissemination key performance indicators (KPIs), useful to measure the effectiveness
and efficiency of the activities conducted,
• explain how the dissemination activities will support the exploitation activity,
• define how the dissemination activities are administrated, and
• define the events where InteGrid project partners should promote project activities and results.
Within this report, feedback and comments are gathered from end users and other stakeholders considered
as important from the DSO perspective. In this document, the expression end user will be used, to indicate
users that come within the scope of the power network. On the other hand, the term end customer will be
used to indicate customers that come within the scope of market aspects.
1.1. Purpose of the Document
The aim of this document is to summarize the feedback from the distribution grid end users and other
stakeholders. It is expected that the gathered information from the field will help in reaching conclusions,
defining recommendations, and potentially identifying end users’ requirements. Even after the end of the
InteGrid project, all gathered information might serve for study purposes and be available to other entities
such as regulatory authorities, other power system operators, suppliers and further interested parties.
Elektro Ljubljana (EL LJ), as a distribution system operator (DSO) and new services developer, tried to find
the answers to four fundamental questions:
• What is the target group and how to introduce the new grid services to the potential market
participants?
• What is the appropriate approach to convince the market participants for collaboration, enabling
and establishing new grid services?
• How to address the risks associated with the flexibility provision?
• What are the other drivers (besides financial benefit), which could encourage the end users to
participate, e. g. social aspects or environmental considerations like lower carbon emissions?
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2. Methodology
This chapter gives an overview of the methodology that was defined to gather all the necessary answers
and relevant information. A clear approach to encourage the end users was defined, as their active
participation in grid flexibility is key to efficient grid management. The methodology is explained in the
following subsections.
The methodology should provide the answers to the following questions:
• Whom should the new services be offered to?
• What is the right manner of presenting the newly developed services of this project?
• How should potential users be encouraged to decide for the new services?
Furthermore, the distributed energy resources (DER), i.e. industrial and commercial end users’ devices and
processes with identified available flexibility and representing the target group to whom the new services
should be offered, were connected to a technical Virtual Power Plant (tVPP), which bundles and manages
flexibility of end users to the DSO, and to a commercial Virtual Power Plant (cVPP), which provides flexibility
to the ancillary service markets operated by the Transmission System Operator (TSO).
The term “stakeholder” refers to all interested parties or parties which could influence the development
process of the services. In the Slovenian pilot, involved stakeholders were identified almost at the very
beginning of the project, according to the dissemination plan (prepared in work package WP10). Focused
stakeholder communication and dissemination activities started with direct phone calls explained in section
2.1. Face to face meetings were organised with the stakeholders, that showed interest in the phone calls.
Section 2.2 provides insights into the agenda of these meetings.
All interested stakeholders were invited to the first workshop in Ljubljana, which is presented in section
2.3. After the end of the demonstration period a final workshop and meetings were organised, which are
explained in section 2.4.
2.1. Direct phone calls
The Slovene demo leader, Elektro Ljubljana (EL LJ), prepared a list of the target end users connected in the
demo area, that were known before as grid users with a flexible power potential. They were contacted by
phone (Elektro Ljubljana’s grid customers, who have a long-term connection contract with the company).
25 industrial and commercial companies were contacted. Based on the response of the contacted
companies a final selection of 20 companies was made. The project’s contract obliged EL LJ to have
altogether a minimum of 10 end users. The result of the phone calls provided an initial estimate of the
potential of flexible power. EL LJ also collected the information about the processes on which the activations
of flexibilities will be executed.
The principle of the end users’ selection method was to identify the largest electricity consumers (based on
the contracted power), and to calculate the possible voltage drops based on the assumption that the
observed medium voltage (MV) end users would operate at the peak power continuously through longer
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time period. The estimated voltage drop depends on the distance of the connected load from the
substation, type of the cable or overhead line, diameter, neighbouring connected end users, age, etc. The
calculation method is Newton-Raphson for voltage drops. With these analytics, the preselection of most
“desirable” end users, who have the highest influence on voltage change was made.
The phone calls were conducted by the head of the technology development department. In the first part
of the call, the intentions of the call were explained, followed by the presentation of the InteGrid project
and the meaning of the flexibility. The second half of the call focused on defining the capabilities to provide
the flexibility.
During these conversations it was agreed that EL LJ would visit each end users, to discuss open questions
about the participation in detail. Later, the results of these meetings were very positive, namely these
meeting opened the way for later active collaboration.
During the presentation of the InteGrid project the end users got the following message:
• The InteGrid project proposes new solutions for DSOs,
• It fosters the participation of different agents in energy and service markets,
• It uses MV and low voltage (LV) optimization, control and forecasting algorithms for development
of DSO’s specific ancillary services and active grid management,
• It integrates into the gm-hub platform a technical and a commercial VPP, from a third-party retailer,
for exchange and validation of flexibility solutions in order to boost prosumers participation and
reliable grid operation.
• It encourages end users to identify, connect and deliver their flexibility for distribution or
transmission grid services.
2.2. Meetings
This phase of encouraging the end users lasted for almost 3 months where the primary aim was to gather
detailed information about the potential of available flexibility. The target group was defined as a selected
group of industrial and commercial end users who are located on the areas, where their usage has, or could
have a significant influence on the voltage conditions.
In addition to the aforementioned most “desirable” end users, meetings were also organised with other
candidates from the list of 25 relevant end users, with the aim to reach or even to exceed the required
minimum number of users in the InteGrid demo. Having more active end users within InteGrid, would
enable the involvement of different kinds of flexibility with different characteristics in commercial and
technical VPPs.
At the meetings users were introduced to both VPP solutions (technical and commercial) and received
information about their classification in the VPP. For those who decided to actively participate, either their
existing meter was replaced with a new smart meter, enabling the load profiles to be recorded in two
different intervals (1 min and 15 min) and automatically send these timeseries to the DSO, or a remote
terminal unit (RTU) was installed and connected to the existing meter.
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2.3. Workshop
The Slovenian demo leader EL LJ prepared a list of the target stakeholders to be invited. These stakeholders
were selected by EL LJ based on the company’s experience in network operation in Slovenia with a focus
on regulatory and economic considerations. The types of identified stakeholders are listed in Table 4.
Besides the previously mentioned power network end users, the aim of the workshop was to disseminate
project results and collect stakeholder feedback from other identified stakeholders.
2.3.1. Invitation
EL LJ prepared an official invitation, which was sent out via e-mail. Before sending the e-mail, EL LJ also
called each invited participant personally, in order to achieve a good turnout of persons at the workshop.
This two-stage invitation procedure took three weeks and started one month before the event. The text of
the invitation e-mail can be seen in Annex B.
2.3.2. Workshop program
The workshop was organised on June 19th, 2019. The initially planned program is shown in Table 5 in
Annex B.
EL LJ, the organizer of the workshop managed to enhance the agenda with the keynote speaker Mr. Jan
Kostevc from ACER, talking about the regulatory perspective on innovation investments. The initially
planned presentation of exploitable results was replaced by New business models, by Rafael Cossent from
Comillas University. The final workshop agenda is shown in Table 1. The results of the workshop are
summarized in section 3.3.
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Table 1: Final workshop agenda
2.4. Meetings after the end of the demonstration
period
The Slovenian demonstrators obliged themselves to organize a second workshop in Slovenia for all the
stakeholders. The stakeholder comprises of the grid users, the legal authorities, such as the ministry, the
DSO, the national energy agency, the electricity suppliers, the aggregators and the scientific institutions
(institutes) and as well as the university, more specifically the faculty of electrical engineering.
The initial plan to organize a face-to-face workshop in March 2020, did not materialise due to COVID 19.
The measures taken to combat the spread of COVID 19 made it impossible to organize a meeting in one
place for all potential stakeholders, including the grid users.
As a substitute for this action, EL LJ prepared an approach on how to cover the obligatory activities. The
forward was given to the grid users because they contributed to InteGrid results with their voluntary active
participation, supporting the tests when required. EL LJ contacted the users and tried to arrange face-to-
face meetings with them after the lift of the COVID 19 measures in June 2020. For these meetings, a power-
point presentation was prepared in Slovenian with the basic information about InteGrid, also including
figures and results of the most interesting and representative tests. At the conclusion of these meetings,
each end user was invited to fill out a questionnaire (see section 2.4.3). The answers should give better
information, how InteGrid is evaluated from their perspective, the perspective of the grid users. The results
of these activities are explained in section 3.4.1.
The second group of interested parties including the other stakeholders – regulatory and non-regulatory
entities. In this instance, EL LJ decided to organize a webinar instead of face-to-face meetings. The planned
date in March 2020 did not occur due to government issued COVID 19 measures, therefore it was
postponed to June 3rd, 2020. The stakeholders were initially contacted on an individual basis to gauge the
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overall level of availability and interest. The date was agreed upon by vote using a Doodle poll to efficiently
schedule the meeting. EL LJ was prepared to also have individual web-based conference calls with
stakeholders who were unable to join the group webinar. The webinar was divided into two parts: 1) a
Powerpoint presentation about InteGrid results in Slovenian and 2) a group discussion. For the conclusion,
a questionnaire, separate from the one applicable to grid users, was prepared. The participants were
requested to fill out the survey within 10 working days. The results of the stakeholder discussions are
summarized in section 3.4.2.
2.4.1. Invitation
EL LJ prepared an official invitation for each of the stakeholder groups. E-mails were sent out respectively
to grid users and the rest of the stakeholders. The complete text was written in the Slovenian language.
E-mails were sent to the 11 grid users; the text is shown in Annex B (Figure 3). When feasible, an onsite visit
was scheduled with users, during which InteGrid’s achievements were presented, followed by a half hour
long discussion. During the discussion the companies were requested to fill in the questionnaire (section
2.4.3) and were offered assistance if needed.
The e-mails to invite the other stakeholders and to organise a Skype meeting are shown Annex B (Figure 4
and Figure 5).
2.4.2. Gathering of feedback
2.4.2.1. Grid users
Only two grid users responded to the meeting invitations. The rest of the invited companies were
contacted directly via a phone call but declined the visit due to lack of their staff’s capacity.
2.4.2.2. Other stakeholders
A Skype conference was organized on Wed, 3rd of June 2020, at 2 p.m. and received 17 participants. The
presentation itself was 1 hour with additional time reserved for questions. InteGrid received very positive
feedback since, for the listeners, it was for the first time that an H2020 project was presented in their
national language.
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The business type and number of visitors of the Skype workshop is presented in Table 2.
Table 2: Overview of participants of the final workshop
Stakeholder Number of participants
Aggregator 3
Data Service Provider 1
DSO 1
ESCO 0
National Data Protection Authority 0
Policy Makers 0
Regulator 1
Retailer 3
TSO 1
Electricity Distribution Co. 3
Research Institutions 1
Faculty of Electrical Engineering 3
TOTAL 17
2.4.3. The questionnaires
Two types of questionnaires were prepared: 1) for grid users and 2) for stakeholders. The concept of the
questions abided by the content of the presented material and the expected results, which were gathered
with the provided answers. The questions listed below were issued to grid users and were focused on the
flexibility provision:
1) Do you think that project participation allows you to identify more flexibility?
2) Can you set a constant flexibility throughout the entire year, with high availability, where
redundancy would be provided by your own processes?
3) Would you be willing to participate as a flexible unit (DER) for the needs of the grid regardless of
the costs caused by adjusting? Note that adjusting to the grid's needs would have a guaranteed
price.
4) Do you think an adjustment period of more than two hours is too long?
5) Would you be willing to join other platforms where your flexible power would be offered to
interested parties?
6) The price of adjustment would also depend on the speed of your response. What is the minimal
adjustment time and are you able to automate any process for a less than one minute response?
Below is the general stakeholders’ questionnaire which focused on flexibility as a new service. It should be
mentioned that all stakeholders are aware that the Slovenian control area is lacking liquidity in the ancillary
service markets, which results in high market prices.
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1) Flexibility identification – can you evaluate it as the biggest obstacle?
2) Do you think a sufficiently stimulating price would speed up the identification of flexibility ?
3) What are the factors helping the operator to determine the price of flexibility? Speed of response,
flexibility, the time of 100% available power?
4) Do you think participating in projects such as InteGrid allows users to identify additional
flexibility?
5) What is your evaluation of the concept for the distribution grid operator and the market of
system services? Can you confirm innovation with the integration of all presented tools?
6) Do you think that the concept of flexibility can, for the needs of the distribution operators, be
implemented in your environment, in what time, and where do you see the obstacles?
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3. Results of meetings and workshops
3.1. Direct calls to engage the grid users
A main result of the phone calls (before the demonstration period) was the gathered information on the
industrial branch, specifically the type of the flexibility source and the estimated amount of flexibility
provided by the end users. This information is summarized in Table 3 and was also mentioned and
presented in the technical reports of this project.
Table 3: Type and amount of acquired flexibility
ID Type of facility Type of flexibility Flexibility device Estimated flexibility kW
1 Paper mill reduce load 3 x 1MW motor, steam turbine 4.000
2 Silica sand factory reduce load Motors and pumps 470
3 Logistics centre with cold storage
reduce load Emergency diesel generator 600
4 Wastewater treatment reduce load Motors for blowing the air into the process
200
5 Pharmacy start electricity generation unit
Emergency diesel generator 100
6 Plastic packaging Production
reduce load 15 motors-mills 300
7 Plastic packaging reduce load Air conditioning, heating 100
8 Quarry reduce load Motor for the mill 500
9 Combined heat and power Reduce/increase the production
Gas engines 50
10 Chemical industry Reduce the production
three small hydro power plants 90
11 Small hydro power plant Reduce the production
water turbine 30
These industrial and commercial end users’ devices and processes were connected to the technical Virtual
Power Plant and commercial Virtual Power Plant, as shown on screenshots in Annex C (Figure 6 and Figure
7). The names of real end users were made unreadable in order to comply with to El LJ standards for the
protection of customer’s data.
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3.2. Meetings
The outcome of these meetings was the signing of Letters of Interest (LoI) for the collaboration. Ten signed
LoIs were received back, as had been expected.
Figure 1: An example of a LoI signed by end user
Following these meetings, RTUs were installed at the users’ premises and a remote, secure personal access
to the VPP was granted. By means of this access, the users can observe and download their active power
consumption or generation data almost in real time. The access to the VPP allows the participating users to
compare between the data, which they store and process in their own systems and the data gathered from
the official meters.
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3.3. Results from the Ljubljana workshop
3.3.1. Participation
At the workshop only two types of initially identified and contacted stakeholders were missing: Policy
makers (Slovenian Ministry of Infrastructure) and the National Data Protection Authority.
The business type and number of visitors of the workshop are presented in Table 4.
Table 4: The business type and number of the workshop visitors
Stakeholder Number of participants
Aggregator 2
Data Service Provider 1
DER Owner (MV and HV) 1
DSO 1
Energy service company (ESCO) 1
Industrial Consumer / Associations 2
National Data Protection Authority 0
Policy Makers 0
Regulator 1
Retailer 1
TSO 2
Electricity Distribution Co.1 3
Research Institutions 1
Faculty of Electrical Engineering 2
TOTAL 18
1 In Slovenia there is only one licensed DSO, which contracts the local assets owners for the network operation.
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Figure 2: Workshop participants
3.3.2. Presentations
Presentation slides of Mr. Jan Kostevc from the Agency for the Cooperation of Energy Regulators (ACER),
the InteGrid project coordinator, demo work package leaders and Rafael Cossent from Comillas University
can be found in Annex A.
3.3.3. Online poll
This poll was done with the participants of the InteGrid workshop that took place in Ljubljana on the 19th of
June of 2019.
The system KAHOOT2 was used to get feedback from the participants during the presentation of InteGrid’s
solutions and business models. In total, 21 attendees voluntarily participated in the polls. The participants
were asked to answer four multiple-choice questions (MCQ) and one additional open question during the
workshop. Each multiple-choice question had four possible options. After the results from each question
were received, a live debate was proposed, and participants engaged in a joint discussion. The MCQs from
the workshop were the following:
2 https://kahoot.it
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Question 1:
What is the main challenge for end-users to be overcome in order to provide their flexibility?
Answer options and results:
Answer options Results
Regulation is not well defined yet 7
Aggregation is needed to unlock the DER flexibility potential 4
Volatility and uncertainty of markets 2
Others 3
Question 2:
What is the main barrier for DSOs to use the potential of DER flexibility?
Answer options and results:
Answer options Results
Economic incentives for DSOs are still not in place 10
Coordination between TSO and DSO must be enhanced 1
Difficulties in defining local markets (unit size, liquidity) 1
Still very few DER flexibility providers 2
Question 3:
What is the main roadblock for the development of aggregation, especially, the VPP concept?
Answer options and results:
Answer options Results
Little money in aggregation (very large portfolio is needed) 4
Undefined rules between aggregators and BRPs 1
Infrastructure between meters and aggregators' systems 1
Aggregation of different types of DER is still not allowed 0
Question 4:
What are the barriers to common platforms (grid and market hub) to deliver their potential?
Answer options and results:
Alternatives Results
Cybersecurity issues 0
Low interest by end-users to use the platform / provide data 6
Privacy data compliancy 2
Other 6
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Question 5:
How can R&I projects like InteGrid be more active in the policymaking process?
This question was raised for discussion with the participants. It brought up different viewpoints and
perspectives from different stakeholders (regulatory, grid management – operational and investment,
technology developments, etc.).
The workshop was praised as well organized and as an efficient tool for the dissemination of R&I results
for targeted audiences. Such workshops would improve the project’s impact in policymaking
processes.
3.4. Results of the final meetings after the end of
the demonstration period
3.4.1. Results gathered from grid users
Two of the invited users responded positively to the invitation of a face-to-face meeting. Here is a summary
of the provided answers from both grid users.
Both grid users confirmed that they learned a lot thanks to InteGrid. The answers to the question about
whether project participation allowed them to identify more flexibility, were opposite. In one instance, a
factory producing paint colours and also operating a small hydro power plants engaged in the tests,
answered negatively about identifying additional flexibility potential. They pointed out that it would not be
possible due to the order-dependent nature of the production process. In the second instance, a large
Slovenian merchant with more than 80 smaller retail stores in Slovenia claimed they could confirm more
flexible power, than they thought they could before InteGrid. When questioning both users about flexibility
with high levels of availability, the answers were contradictory. While the first user did not see any
possibility, the merchant was able to offer a Diesel generator with year-round availability.
Both users agreed that they could not guarantee their participation as flexible units to support the grid
operation, without having a safe and strong economic driver to do so.
According to current market rules for cVPPs in Slovenia, the TSO can activate DER for a maximum duration
of two hours. The users did evaluate this time as too long, considering the part of the process which would
be comprised. The merchant commented that one hour would be their limit.
The answers to the question about being prepared to join an aggregation platform, as presented in InteGrid,
were generally positive. The paint factory representative provided a nuance to his answer, saying they could
join to platform, but not before having more flexible power, i.e. after they install a new unit for combined
heat and power generation (CHP) and a solar power plant.
The last question focussed on the capability to automize the unit's response to received setpoints to reach
a response time of less than one minute and on the dependency of the flexibility price on such update. Both
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users gave opposite answers again. The colour factory answered with “no”, while the merchant answered
with ”yes”, because they would engage their Diesel generator as the flexible unit which support even faster
full activation times (FAT).
3.4.2. Results gathered from other stakeholders
The first question focussed on the identification of suitable flexibilities, in particular if this issue would
present a relevant barrier to establish the new markets for ancillary services in Slovenia.3 The general
consensus was “no”, since this is very dependent on the production process or the economic activity. It
would be welcomed if a project provided guidance to the grid users or the potential flexibility providers on
how to discover the flexibility potential and on good use cases and lessons learned. The national agency for
energy provided an opinion that the industrial consumers would have more interest in participating in new
services if their costs for energy caused a significant share of the total costs of operation. In other words,
the opportunity to lower the energy procurement costs by participating in ancillary service markets should
be an incentive for the industries.
Answering the question about the price for the provided flexibility, all stakeholders agreed that a high
enough price would enhance the flexibility provision.
When addressing the question about flexibility price definition, participants stated that it should depend
on the availability and on local conditions. If some grid sections showed a higher need for flexibility, then
also the price for flexibility provision should be increased in these grid sections – similar to the nodal pricing
concept in energy supply. The price of flexibility must be determined also by the response time. DER with
faster response time should be rewarded with a higher payment. The faculty answered with an explanation
that the price for the flexibility must be based on its definition and that flexibility provision must be metered
with appropriate accuracy and reliability. The flexibility definition is not yet defined in the current Slovenian
market. When this will happen, the flexibility price will be based on it.
Projects, such as InteGrid, have a positive influence on identifying more available flexible power, however
the price of flexibility is what will drive participation in the real market.
All answers confirm the innovative nature of InteGrid. The National Agency for Energy pointed out the
positive and innovative concept of the multi period optimized power flow (MPOPF) in the distribution
network.
None of the respondents see any conceptual barriers preventing the implementation of the InteGrid
concept in reality. The InteGrid concept is evaluated as a feasible approach already close to the real
operation.
3 In 2020 Slovenia reorganised the ancillary service markets to comply with European directives. This process included the introduction of shorter product periods.
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4. Engagement of end users to participate in
the demonstration activities
Engagement of end users to participate in a research project can be a challenge because the owners of
distributed energy resources (DER) cannot expect financial reward for their efforts but on the other hand
have concerns about giving any commitment for a multi-year project which might bear the risk of unknown
internal costs. In the InteGrid project, Elektro Ljubljana was even facing additional challenges because the
DERs needed to be connected in a certain demo area of the mid voltage network around the city of
Domzale, Slovenia. Additionally, Elektro Ljubljana’s former sister company Elektro Energia has already been
operating a VPP and offering the flexibility of many DERs connected in Elektro Ljubljana’s grid area to the
Slovenian markets for ancillary services. Most of these end users, which were considered as attractive and
reliable flexibilities from an aggregator’s perspective, were not able to participate in additional tests in
parallel to the market participation since they might run into risk of paying penalties for underperformance.
Given these circumstances, Elektro Ljubljana had to develop a very flexible way of dealing with the
remaining flexibility providers.
4.1. Measures and agreements to motivate DER
operators to participate
After identifying relevant end users inside the demo network area, Elektro Ljubljana started an intensive
process to contact these end users and to explain the nature and purpose of the InteGrid project.
In a subsequent step Elektro Ljubljana tried to receive any kind of written commitment from grid users,
which was not possible in many cases (see chapter 4.2), but many end users agreed to participate on
voluntary basis.
In a final step Elektro Ljubljana installed improved smart meters for meter readings in 1 min intervals and
even RTUs with output contacts indicating the activation. As long as no obligation arose to the end users,
they also agreed with the technical installations on their sites.
In general, it was crucial to highlight the benefits for the participating end users, like
• To have a chance to learn about future trends,
• To test the ability and feasibility of the DERs for participation in innovative future services,
• But also, to learn about possible unexpected practical implications on site.
• Additionally, end users were offered to collaborate on the development of new services, especially
the future services for the DSO.
• An external provider of technical services for electric vehicle charging was motivated by the chance
to test the existing interfaces with the InteGrid VPP.
• Getting the opportunity to access their consumption profile in 1 min resolution and in real time was
the main motivation for participation for many end users.
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• A peak alarm service was also offered to the participating end users, but this did not seem to be
very relevant for them.
Finally, even some of the DERs operated in the real ancillary services markets volunteered to share their
measurement data with the VPP under these conditions. Their data could increase the data basis for
analyses and the significance of the developed solutions.
4.2. Main concerns of DER owners impeding the
participation in the project
It is also relevant to collect the concerns of DER operators in respect of participation in the project, in order
to consider these in the planning of future projects. Based on the experience of Elektro Ljubljana, the main
reasons for negative answers or refusals of DER operators were the following:
• The DER operators did not identify significant flexible power consumption of generation in their
facilities. For smaller companies, especially the plastic coverage production, or companies with a
relevant focus on services, no flexible power could be identified. The only flexible power in the
before mentioned branches can be exploited from backup Diesel generators, which are typically
installed in bigger facilities.
• The companies are short in personnel and have no manpower available to take care of new
activities.
• The company is currently in the stage of renewal of processes or production.
• The management has no interest in any activities related with energy management.
• Without any reward or direct payment for their participation, the management does not authorize
for the active participation.
• Some end users were generally interested in participating, but strongly refused to sign any letter of
intent or give any other form of binding commitment.
• The more internal hierarchies had to be concerned with the project participation, the more likely
the companies refused to participate.
• Some end users mentioned concerns about data privacy. Based on the good long-term relation
between Elektro Ljubljana and the grid users, no additional agreements were required since Elektro
Ljubljana is considered as a reliable partner and pre-existing agreements do already cover the
obligatory non-disclosure of customer’s data without consent of the customer.
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4.3. Good practices for organisation of activation
tests
Those end users that agreed to participate in switching tests, demanded transparent rules for the
organisation of test activations. Elektro Ljubljana took these requests into consideration in order to
guarantee a smooth test experience and to further promote the participation of the end user or connected
customer. The most frequent demands mentioned by the DER operators were the following ones:
• The DER operator must be informed at least two days in advance if an activation test was planned.
• Call the DER operator again about two hours before the planned start of the test.
• Try to communicate not only with the management but also with technical operators, personnel in
control rooms, electricians, or supervisory control and data acquisition (SCADA) engineers. People
with practical experience will provide better insights and they can also communicate possible issues
more openly. They usually show high motivation for new ideas and improvements and are able to
point out alternative ways to provide flexible power in many cases.
• If possible, schedule the test plan according to the availability of the end user.
• Try to reach synergies by considering additional motivations or needs for switching of assets. E.g.
backup Diesel generators must carry out regular test-starts in monthly intervals, or devices like
industrial chillers need to perform regular maintenance which also requires a switch-off of the
device.
• Consider the technical limits mentioned by the DER operator, e.g. available flexibility on the
relevant day of maximum time of activation.
• Try to avoid unnecessary interruption of the end user’s daily business and minimize the time
required for participation.
• Share results of activation tests with the DER operator as soon as possible and do not wait until the
end of the project to communicate results with the DER operator.
Elektro Ljubljana incorporated these rules in the planning of activation tests. Based on this procedure, the
expected results were achieved; and no negative feedback was received from any DER operator.
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5. Summary and conclusions
Many smart grid research projects face similar non-technical challenges like the engagement of grid users
to participate in field tests or the timely sharing of results with the relevant practical stakeholders on
national or European level, that usually do not attend scientific meetings nor have the time to read articles
in scientific journals. Nevertheless, research activities which received public funding have a responsibility
to disseminate the result with society, and in particular with the relevant stakeholders.
Additionally, due to the multidisciplinary nature of smart grid research projects many inputs from external
parties are required, since research institutions are not able to collect and investigate the practical
implications of new technologies or market organisations without the input from people, companies and
institutions dealing with questions of daily business. A special challenge in this context is the limited time
that persons engaged in daily business can dedicate to research projects.
Besides DER operators, Elektro Ljubljana also communicated with the following stakeholders: aggregators,
data service providers, DSO, ESCO, industrial consumer association, regulator, retailer, TSO, electricity
distribution companies, research institutions and the faculty of electrical engineering.
Before the start of the demonstration, key questions focussing on business implementation were discussed
during the workshop in June 2019. The following answers were collected in an online poll:
1. What is the main challenge for end-users to be overcome in order to provide their flexibility?
Answer with most votes: Regulation is not well defined yet.
2. What is the main barrier for DSOs to use the potential of DER flexibility?
Answer with most votes: Economic incentives for DSOs are still not in place.
3. What is the main obstacle for the development of aggregation and especially the VPP concept?
Answer with most votes: Low revenue in aggregation (very large portfolio is needed).
4. What are the barriers to common platforms (like a grid and market hub) to deliver their potential?
Answer with most votes: Low interest of end-users to use the platform and provide data.
5. How can R&I projects like InteGrid be more active in the policymaking process?
This question was raised for discussion. It brought up different views from different stakeholders
(regulator, grid management – operational and investment, technology developments, etc.). As a
general feedback, the workshop was praised as well organized and as an efficient tool for the
dissemination of R&I results for targeted audiences. Such workshops would improve the
project’s impact in policymaking processes.
Elektro Ljubljana defined a methodology for communication with end users and other stakeholders. A core
part of the methodology was the investigation of the seven key questions presented below. The answers
were gathered during the entire stakeholder consultation process and demonstration activities. After
finalization of the Slovenian demonstration and meetings, the following findings can be summarized:
Question 1: What is the target group and how to introduce the new grid services to the potential market
participants?
Findings: The target group for new services are the MV grid users with identified and confirmed
flexibility. What was specific for InteGrid is that there was no limit in minimum of provided power.
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Question 2: What is the appropriate approach to convince the market participants for collaboration in
order to enable and establish new grid services?
Findings: The best approach is the combination of phone calls and meetings. The users need to
receive sufficient relevant information, also to convince the management.
Question 3: How should the risks associated with the flexibility provision be addressed?
Findings: The risk pertains to availability and the time of provision. In the time of activation, it is
expected to provide at least 80 % of declared flexible power. Participation in a VPP can reduce the
risk of penalization due to underperformance.
Question 4: What are the other drivers (besides financial benefits), which could encourage the end
users to participate, e. g. social aspects or environmental considerations like lower carbon emissions?
Findings: Environmental aspects and the lesson for the future. It is expected that flexibility
services will become a daily routine in the next few years.
Question 5: Whom should the new services be offered to?
Findings: The current perspective of the DSO is to also engage the LV grid users apart from the
MV grid users, but LV grid users should be aggregated on the level of the transformer station.
Question 6: What is the right manner of presenting the newly developed services of this project?
Findings: To present in native language, e.g. Slovenian, and to do it on a personal level, preferably
in face-to-face meetings.
Question 7: How should potential users be encouraged to decide for the new services?
Findings: It must be made clear to them that the project helps to enable investments in the future.
Flexibility providers are difficult to engage because costs for new hardware installations, active power
activations, and disturbance of their daily business processes may arise on their side. Some benefits need
to be offered to the DER operator. In the Slovenian demo, the participating end users were able to get
access to the virtual power plant and to observe the power profile of their own assets at any time. This
possibility was used by many companies, in particular during activation tests. Another motivation factor for
small C&I customers was the possibility to analyse their own power consumption pattern with regards to
peak tariffs for network usage. Additionally, the DER operators were able to learn about future business
opportunities, which was a significant driver for many participants.
Considering the InteGrid activities in Slovenia, the project met the expectations in the field of dissemination.
The participation level of the invited end users, their feedback, and the general opinion and feedback to
the project was very good. The participants understood the intentions and results of the project, and we
think that InteGrid provides a sound example for other potential flexibility providers to become active in
the field of flexibility provision as a new service. InteGrid also indicated future business opportunities from
the DSO’s and aggregators' perspectives.
Organising workshops about the project in general or a specific topic, which should not be too narrow, for
information and open discussion with relevant stakeholders seems to be a well-accepted and time saving
measure to involve all relevant stakeholders. It was much appreciated that the final workshop after the end
of the demonstration period was held in Slovenian, the native language of the participants. The
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stakeholders mentioned it was the first time that an H2020 project was presented in their native language.
The workshops organised by Elektro Ljubljana received much positive feedback from the participants.
As a recommendation for future activities, the Slovenian stakeholders mentioned that it would be welcome
if a project would provide guidance to the grid users or the potential flexibility providers on how to discover
the flexibility potential and on good use cases for flexibility provision.
The fruitful activities of the Slovenian demonstration leader could be proven by the number of grid users
participating in the VPP, their adjusted behaviour during the activation tests, and the highly motivated
participants of the workshops. The key element is clear communication to ensure participants understand
what is happening with the flexibility they are providing and that flexibility provision for ancillary services
can surpass the key obstacle that cost can represent.
The number of highly motivated grid users and stakeholders participating in the final meetings verified the
success of the stakeholder engagement activities in the InteGrid project and in particular of the Slovenian
demo leader Elektro Ljubljana.
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References
[1] Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the
protection of natural persons with regard to the processing of personal data and on the free
movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation)
(Text with EEA relevance),
https://eur-lex.europa.eu/eli/reg/2016/679/oj
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Annex A: Workshop presentations
InteGrid project presentation by Ricardo Mendes
Andre (EDP) and Ricardo Bessa (INESC TEC)
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Keynote speaker, Mr. Jan Kostevc, Infrastructure
Regulation Officer at the Agency for the
Cooperation of Energy Regulators
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Presentation of the pilot in Portugal by Ricardo
Mendes Andre, EDP
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Presentation of the pilot in Slovenia by Boris
Turha, EL LJ
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New business models enabled by smart grid
technology by Leandro Lind, IIT - Universidad
Pontificia Comillas
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Annex B: Invitations to stakeholders
Invitation to first workshop on June 2019
e-mail sent to the stakeholders
Dear all,
Elektro Ljubljana d.d. together with all collaborative partners is pleased to invite you to attend the
“Flexibility, a new service for the power networks provided by the industrial customers and RES” event
at Hotel Slon, Ljubljana Slovenia on June 19, from 9:30 until 16:00.
This event aims to present the progress achieved on the EC funded project InteGrid, especially
concerning the achievement in Slovenia. A site visit of the Slovenian demo in the city centre of
Ljubljana and later afternoon a collaborative workshop will be organized. During the workshop all
participants will be kindly invited to contribute their opinions and knowledge how the new
environment of the new services for the power networks could be organized, in the most convenient
way, for the operators and as well as for the end customers.
Your presence is very important to us! Please confirm your presence as an answer on this mail
([email protected] ), until June 8.
Initially planned workshop program
Table 5: Schedule of the workshop in Ljubljana
Time Topic Speaker
9.00 - 9.30 Welcome
9.30 Introduction speech, aim of the event Ursula Krisper
(Elektro Ljubljana d.d.)
9.45
InteGrid, H2020- What about it?; The project leader
EDPD and technical coordinator INESCTEC will
explain the main objectives, the objectives which
have to be achieved of the InteGrid project.
Jorge Moreira (EDPD),
Ricardo Bessa
(INESCTEC)
10.30 Portuguese Demo Diogo Lopes (EDPD)
Slovenian Demo Boris Turha (Elektro
Ljubljana d.d.)
11.15 Coffee break
11.30 Exploitation plan Vera Nunes (EDPD),
Rafael Cossent
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(Comillas University of
Madrid)
12.00 Site visit
13.00 - 14.00 Lunch break
14.00 Workshop- introduction Ursula Krisper
(Elektro Ljubljana d.d.)
14.15 Working in groups (4 groups)
15.00 Gathering the results and discussion
16.00 Wrap up, End of the event
Invitation to the final workshop in June 2020
Figure 3 : e-mail to invite the grid users to the final workshop
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Figure 4 : Announcement of the final workshop with Doodle
Figure 5 : Skype meeting invitation to the final workshop
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Annex C: DER connected to the VPPs
Figure 6: tVPP flexibility resources (real-life end-users and simulated resources)
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Figure 7: cVPP flexibility resources (real-life end-users and simulated resources)
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Annex D: Letter of intent
Figure 8: An example of a LoI signed by an end user