Publications

C.Y. Evrenosoglu, T. Demiray, P. Buchecker, Ana Nazaré, Deniz Incesu, Raphaël Tessier
external page Électrification: quels enjeux pour les réseaux? [Electrification: what are the challenges for the networks?]
Bulletin Electrosuisse, February 2025

B. Barahona, C. Y. Evrenosoglu, T. B. Lopez-Garcia, R. Balouchi, R. Palaniappan, U. Häger, A. Marinakis, T. Demiray, T. Quabeck, A. Papaemmanouil
A framework for data-driven decision support for operational planning in active distribution networks
CIRED Austria, 19-20 June 2024

T. Kober, R. Bautz, E. Panos, Y. Wan, R. McKenna, A. Fuchs, T. Demiray
external page Seasonal gas storage in Switzerland
Aqua & Gas, May 2024

P. Gabrielli, J. Garrison, S. Hässig, E. Raycheva and G. Sansavini
The role of hydrogen storage in an electricity system with large hydropower resources
Energy Conversion and Management, vol. 302, February 2024

G. Hug, T. Demiray et al.
Energy security in a net zero emissions future for Switzerland: Expert Group "Security of Supply" 
White Paper, 2023 [link]

C.Y. Evrenosoglu, A. Fuchs and T. Demiray
external page Flexibilität: Warum, für wen und wie? -Flexibilität zwischen Netzebenen
VSE Bulletin, December 2022

A. Fuchs, T. Demiray and M. Larsson
Aggregated models of active distribution networks for stability studies of large transmission systems
Electric Power Systems Research, vol. 212, November 2022

E. Raycheva, J. Garrison, C. Schaffner and G. Hug
The Value of Flexibility in a Carbon Neutral Power System
11th Bulk Power Systems Dynamics and Control Symposium (IREP 2022), July 2022

X. Han, J. Garrison, and G. Hug
Techno-economic analysis of PV-battery systems in Switzerland
Renewable and Sustainable Energy Reviews, vol. 158, April 2022

A. Fuchs
Mit Wasserkraft zur Versorgungssicherheit - Sicherheit der Energieversorgung und die Auswirkungen auf die Winterreserven aus Wasserkraft
VSE Bulletin, February 2022

B. Gjorgiev, J. Garrison, X. Han, F. Landis, R. van Nieuwkoop, E. Raycheva, M. Schwarz, X. Yan, T. Demiray, G. Hug, G. Sansavini, and C. Schaffner
Nexus-e: A platform of interfaced high-resolution models for energy-economic assessments of future electricity systems
Applied Energy, vol. 307, 2022

N. Savvopoulos, C. Y. Evrenosoglu, T. Konstantinou, T. Demiray and N. Hatziargyriou
Contribution of Residential PV and BESS to the Operational Flexibility at the TSO-DSO Interface
International Conference on Smart Energy Systems and Technologies (SEST), September 2021

M. Libsig, E. Raycheva, J. Garrison, G. Hug
Modeling and validation of hydro cascade operation considering price uncertainty
ASME Power Conference, July 2021

E. Raycheva, J. Garrison, C. Schaffner, and G. Hug
High Resolution Generation Expansion Planning Considering Flexibility Needs: The Case of Switzerland in 2030
Mediterranean Conference on Power Generation, November 2020

J. Garrison and T. Demiray
Nexus-e: eMark Module Documentation
Berne: Department of the Environment, Transport, Energy and Communication DETEC, Swiss Federal Office of Energy SFOE, Energy Research and Cleantech, 2020.

E. Hillberg, I. Oleinikova, K. Uhlen, A. Iliceto , K. Hojckova , D. Brandao, D. Pudjianto, K. Sirviö, J.C. Gonzales, D. Babazadeh, R. Srivastava, S. Wong, A. Fuchs, J. Rossi, M. Broling
micro vs MEGA grid solutions for the future power system
Cigre Session 48, Paris, 2020

J. Garrison, B. Gjorgiev, X. Han, R. van Niewkoop, E. Raycheva, M. Schwarz, X. Yan, T. Demiray, G. Hug and C. Schaffner
Nexus-e: Scenario Results Report
Berne: Department of the Environment, Transport, Energy and Communication DETEC, Swiss Federal Office of Energy SFOE, Energy Research and Cleantech, 2020.

J. Garrison, B. Gjorgiev, X. Han, R. van Niewkoop, E. Raycheva, M. Schwarz, X. Yan, T. Demiray, G. Hug and C. Schaffner
Nexus-e: Simulation Framework and Interfaces
Berne: Department of the Environment, Transport, Energy and Communication DETEC, Swiss Federal Office of Energy SFOE, Energy Research and Cleantech, 2020.

J. Garrison, B. Gjorgiev, X. Han, R. van Niewkoop, E. Raycheva, M. Schwarz, X. Yan, T. Demiray, G. Hug and C. Schaffner
Nexus-e: Validation and Calibration of Modules
Berne: Department of the Environment, Transport, Energy and Communication DETEC, Swiss Federal Office of Energy SFOE, Energy Research and Cleantech, 2020.

P. Fortenbacher and T. Demiray
Reduced and aggregated distribution grid representations approximated by polyhedral sets
Intl. Jrnl. of Electrical Power & Energy Systems, vol. 117, May 2020.

O. Stanojev, J. Garrison, S. Hedtke, C. Franck, and T. Demiray
Benefit Analysis of a Hybrid HVAC/HVDC Transmission Line: a Swiss Case Study
PowerTech, June 2019, Milan, Italy

P. Fortenbacher and T. Demiray
Linear/quadratic programming-based optimal power flow using linear power flow and absolute loss approximations
Intl. Jrnl. of Electrical Power & Energy Systems, vol. 107, pp. 680-689, May 2019.

D. Kourounis, A. Fuchs, and O. Schenk
Toward the Next Generation of Multiperiod Optimal Power Flow Solvers
IEEE Transactions on Power Systems, vol. 33. no. 4, pp. 4005-4014, Jul. 2018.

P. Fortenbacher, T. Demiray, and C. Schaffner
Transmission Network Reduction Method Using Nonlinear Optimization
Power Systems Computation Conference (PSCC), June 2018, Dublin, Ireland

J. B. Garrison, J. Abrell, J. Savelsberg, H. Weigt, T. Demiray, and C. Schaffner
Combining Investment, Dispatch, and Security Models - An Assessment of Future Electricity Market Options for Switzerland
15th International Conference on the European Energy Market (EEM), June 2018, Lodz, Poland

G. Beccuti and T. Demiray
Operational optimisation for multi-carrier networks
IEEE PowerTech, June 2017, Manchester, UK

A. Fuchs and T. Demiray
external page PV-integration strategies for low voltage networks 
IEEE ENERGYCON, July 2016, Leuven, Belgium

M. Kamgarpour, C. Beyss, and A. Fuchs
external page Reachability-based control synthesis for power system stability
IFAC Workshop on Control of Transmission and Distribution Smart Grids, vol. 49, no. 27, pp. 238-243, 2016.

A. Fuchs and T. Demiray
Large scale PV integration strategies in distribution grids
IEEE PowerTech, July 2015, Eindhoven, Netherlands

G. Beccuti, T. Demiray, M. Batic, N. Tomasevic, and S. Vranes
Energy Hub Modelling and Optimisation: An Analytical Case-Study
IEEE PowerTech, July 2015, Eindhoven, Netherlands

A.G. Beccuti, G. Papafotiou, and L. Harnefors
Multivariable Optimal Control of HVDC Transmission Links With Network Parameter Estimation for Weak Grids
IEEE Transactions on Control Systems Technology, vol. 22, no. 2, pp. 676-689, 2014.

A. Fuchs, M. Imhof, T. Demiray, and M. Morari
Stabilization of Large Power Systems Using VSC–HVDC and Model Predictive Control
IEEE Transactions on Power Delivery, vol. 29, no. 1, pp. 480-488, Feb. 2014.

T. Demiray and G. Beccuti
Evaluation of the order of magnitude of potential GIC in Switzerland
IEEE PES General Meeting, July 2013, Vancouver, Canada

A.G. Beccuti, M. Kvasnica, G. Papafotiou, and M. Morari
A Decentralized Explicit Predictive Control Paradigm for Parallelized DC Circuits
IEEE Transactions on Control Systems Technology, vol. 21, no. 1, pp. 136-148, Jan 2013.

Project reports

C.Y. Evrenosoglu, T. Demiray and A. Fuchs
PRODICON – Power system protection in presence of high shares of distributed converter-interfaced resources
Swiss Federal Office of Energy, Final Report SI/502101-01, 2024. [external page pdf]

T. Demiray, T. Ingold
Energiezukunft 2050 Auswirkungen auf die Verteilnetze
VSE, Final Report, 2024. [external page pdf]

U. Trinkner, N. Eschenbaum, N. Greber, A.Fuchs
Erlösmöglichkeiten und Vermarktungskosten der Wasserkraft
Swiss Federal Office of Energy, Final Report SI/300356-01, 2023. [external page pdf]

B. Hendler et al. 
Flexibility harvesting and its impact on stakeholders interaction
external page ISGAN Power Transmission and Distribution Systems, Discussion paper, 2022. [external page pdf]

E. Hillberg et al. 
Flexibility for resilience: How can flexibility support power grids resilience?
external page ETIP SNET WG1 & external page ISGAN, White paper, 2022. [external page pdf]

A. Marinakis and T. Demiray
Sector Coupling
SGEN Project, Final Report, 2022. [pdf]

C.Y. Evrenosoglu, J. Garrison, A. Fuchs and T. Demiray
TDFlex – TSO-DSO Flexibility: towards integrated grid control and coordination in Switzerland
Swiss Federal Office of Energy, Final Report SI/501735, 2022. [external page pdf]

M. Larsson, A. Fuchs and T. Demiray
ACSICON: Novel Analysis and Control Solutions for Dynamic Security Issues in the Future
Swiss Federal Office of Energy, Final Report SI/501728, 2021. [external page pdf]

A. Marinakis, C. O’Malley, G. Beccuti, U. Reiter, M. Jakob, G. Hug and T. Demiray
The Role of Gas and the Gas Infrastructure Within the Future Energy System - a Techno-Economic Assessment
Swiss Federal Office of Energy, Final Report SI/501563, 2021. [external page pdf]

A. Fuchs
Deliverable 2.3.3: Novel computational tools for secure high-performance storage scheduling
Swiss KTI SCCER-FURIES Digitalization, 2021. [pdf]

A. Fuchs
TSO-DSO: Future tasks and roles of transmission and distribution system operators
Swiss Association for Energy and Network Research (SGEN), Final project report, 2018. [pdf]

A. Fuchs, T. Demiray, E. Panos, R. Kannan, T. Kober, C. Bauer, W. Schenler, P. Burgherr and S. Hirschberg
ISCHESS – Integration of stochastic renewables in the Swiss electricity supply system
Swisselectric Research, Final report, 2017. [pdf]

Presentations

Turhan Demiray
Netz als Enabler der Energiewende: Fokus Schweiz
external page The 18th Swiss Stromkongress , January 15th, 2025

Turhan Demiray
Stromnetz – Enabler der Energiezukunft
external page EnergyCom Senior Executive Conference, August 28th, 2024

Alexander Fuchs
Simulationsresultate von Verteilnetzen mit viel PV
22. Schweizer Photovoltaik-​Tagung, March 22nd, 2024

Adamantios Marinakis
The Role of AI in the future energy system
European AI Alliance Event: external page Theme Development Workshop: AI for Future Energy & Sustainability, February 23rd, 2023

Alexander Fuchs
Nutzung der dezentralen Flexibiltät zur Optimierung vom Verteilnetz mit WP, PV und Ladestationen
VSE-Veranstaltung: Fachtagung Netzwirtschaft, November 23rd, 2022

Turhan Demiray
Die Rolle von Flexibilität
VSGS Veranstaltung: Garantieren Flexibilitäten die Versorgungssicherheit?, November 8th, 2022

Turhan Demiray
Die Bedeutung von Flexibilität und zunehmender Digitalisierung für die Energieversorgung im Jahr 2050
Fachtagung NetzImpuls, March 23rd, 2022

Adamantios Marinakis
A framework for the simulation of distributed energy systems [Download Download (PDF, 1.1 MB)]
ReMaP – Aktueller Stand und Ausblick, September 28th, 2021

Alexander Fuchs
Die zukünftige Rolle des Alpenstroms für die Schweizer Netzsicherheit und den Erfolg der Energiewende [Download Download (PDF, 4.2 MB)]
Tagung des Urner Institut “Kulturen der Alpen” und der Stiftung AlpEnForCe: "Wie nachhaltig ist Alpenstrom" , September 6th, 2021

Alexander Fuchs
Dynamic Simulation and Stability Limits of Large Transmission Systems with Renewables [external page Presentation & Video]
SCCER-FURIES Annual conference, October 28th, 2020

Turhan Demiray
Über die Rolle der Flexibilitäten im Verteilnetz
VSE-Event: Aktuelles aus der Forschung June 19th, 2020

Alexander Fuchs
Reserveenergie und flexible Steuerung im Verteilnetz
VSE Fachtagung Netzwirtschaft, Olten, December 11th, 2019

Alexander Fuchs
TSO-DSO Interaction in Switzerland: Future Tasks, Roles and Challenges
ISGAN-workshop on TSO-DSO interaction. Montreux, October 3rd, 2019

Alexander Fuchs
Technische, betriebliche und wirtschaftliche Aspekte
VSE Schulung zum Thema Netzwirtschaft, Aarau, October 4th, 2019

Jared Garrison
Analyzing Future Market Designs for Switzerland - Results of the AFEM Project
Strommarkttreffens Markt-Design September 25th, 2019

Turhan Demiray
Auswirkungen Ladevorgängge E-Mobilität auf Verteilnetze
VSE-Fachtagung: Elektromobilität May 23th, 2019

Turhan Demiray
System Adequacy Methodology Switzerland
Penta Workshop April 25th, 2019

Jared Garrison
Combining Investment, Dispatch, and Security Models - An Assessment of Future Electricity Market Options for Switzerland
15th International Conference on the European Energy market (EEM), Lodz, Poland, June 28th, 2018

Philipp Fortenbacher
Transmission network reduction method using nonlinear optimization
20th Power Systems Computation Conference (PSCC), Dublin, Ireland, June 15th, 2018

Turhan Demiray
How can the system efficiency be increased by using the flexibility potential?
IEA Networking Event, Switzerland October 30th, 2018

Turhan Demiray
SCCER-FURIES Activities on Dynamic Stability
2nd International Workshop DynPOWER Dynamic Stability Challenges of the Future Power Grids September 17th, 2018

Alexander Fuchs
TSO-DSO: Zukünftige Aufgaben und Rollen der Übertragungs- und Verteilnetzbetreiber
Swissgrid Workshop, Frick, March 1st, 2018

Philipp Fortenbacher
An Approximated Linear Optimal Power Flow Framework for Power System Operation and Planning
SCCER-FURIES Annual conference, Lausanne, November 2nd, 2017

Alexander Fuchs
Fokusstudie Batteriespeicher in Verteilnetzen Herausforderungen, Lösungsansätze und Potentiale
8. Roundtable des Forum Energiespeicher Schweiz Dübendorf, September 13th, 2017

Alexander Fuchs
New methods and tools for power system transient control
2nd International Workshop DynPOWER Dynamic Stability Challenges of the Future Power Grids Winterthur, September 11th, 2017

Alexander Fuchs
Netzplanung der Zukunft: Herausforderungen, Lösungsansätze und Methoden
EKZ Workshop Feusisberg, June 14th, 2017

Alexander Fuchs
Integration of RES in the Swiss electricity grid - Challenges, solutions, and methods
Forum Energiespeicher Schweiz, AG Speichermodelle Aarau, April 25th, 2017

Turhan Demiray
Impacts of Solar Storms on the Swiss Transmission Network
IEEE-PES Swiss Chapter, Baden-Dättwil, Switzerland, September 4th, 2013

Turhan Demiray
Future Energy Networks
Schweizer Verein für Gas und Wasser, Winterthur, Switzerland, September 6th, 2012

Turhan Demiray
Einfluss der geomagnetisch induzierten Ströme auf das Schweizer Üebertragungsnetz
Colloquia at EEH, Zürich, Switzerland, November 6th, 2012

Turhan Demiray
Smartgrids, harmonisation of mutually diverging tendencies in energy systems
Smartgrid Days of VSE, Bern, Switzerland,October 27th, 2011

Turhan Demiray
Technical Grid Aspects
Program management meeting of BfE, Bern, Switzerland, November 2nd, 2011

Turhan Demiray
Network stability, control and decentralised generation
Energy research conference of BfE, Bern, Switzerland, November 29th, 2011