Cansin Yaman Evrenosoglu


Last Name

Evrenosoglu

First Name

Cansin Yaman

ORCID

0000-0002-5807-899X

Organisational unit

02279 - Forschungsstelle Energienetze-ETH Zürich / Research Center for Energy Networks

Filters

2021 - 20255
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Publications 1 - 5 of 5
  • Contribution of Residential PV and BESS to the Operational Flexibility at the TSO-DSO Interface
    Item type: Conference Paper
    Savvopoulos, Nikolaos; Evrenosoglu, Cansin Yaman; Konstantinou, Theodoros; et al. (2021)
    2021 International Conference on Smart Energy Systems and Technologies (SEST)
    The proliferation of distributed energy resources requires more interaction, or even coordination between distribution system operators and these resources so that secure and reliable operation of distribution grid is ensured. These resources can provide active and reactive power flexibility by adjusting their set-points (injecting/absorbing active/reactive power) in an aggregated manner so that they can offer services to the DSOs and/or TSOs. Such coordinated management of these resources can influence positively the transition to a CO 2 -neutral energy system, by increasing the profitability and, therefore, leading to higher proliferation of renewable resources, such as solar PVs. This paper proposes a methodology to approximate the flexibility of an active distribution grid at the point of interconnection with the transmission system. The focus is given to the contribution of residential PVs and battery energy storage systems to the amount and nature of the flexibility. An optimization-based approach is used to estimate the available active and reactive power flexibility at the TSO-DSO substation. The problem is formulated as an AC-optimal power flow and the methodology is tested on a modified 18-bus distribution system.
  • Flexibility provision from electromobility and buildings - Synthesis Report
    Item type: Report
    PATHFNDR Consortium; Aliana, Arnau; Bellizio, Federica; et al. (2025)
    Switzerland’s energy transition relies on electrifying transportation and heating while keeping electricity generation low in greenhouse gas emissions and ensuring grid stability. The required energy system flexibility will still be provided mainly by hydropower. However, additional valuable demand-side flexibility could be provided by electric vehicles and heat pumps by shifting their consumption to align with renewable energy generation. This report evaluates the role of electric vehicle and heat pump flexibility by synthesizing research from across the PATHFNDR project consortium. The report thus quantifies these technologies' potential flexibility and value in supporting both the transmission and distribution systems and assesses existing and required market and policy mechanisms to unlock their full benefits. New scenario-based modelling results show that flexibility provision from electric vehicles and heat pumps can reduce system costs, defer network upgrade investments, lower electricity prices and imports, and reduce curtailment of renewable energy by better aligning demand with surplus generation. Electric vehicle smart charging and vehicle-to-grid can act as energy storage, which shift or discharge electricity to support the grid. Heat pump demand can be shifted using thermal inertia and thermal energy storage to reduce peak demand and stabilize the grid. At distribution level, flexibility-aware planning can reduce or defer low- and medium-voltage grid upgrades with minimal PV energy loss. Our research also finds that enabling flexibility-readiness through supportive policy and market mechanisms are critical for effective demand-side management. Some mechanisms are already in place, such as contracts with dynamic pricing, direct load control, and subsidies for smart charging and vehicle-to-grid infrastructure. However, further policies, changes to regulation, and owner/user acceptance are needed. Surveys of the Swiss public show that support for flexible EV charging and heat pump operation is high, indicating readiness for further policy and market changes supporting flexibility and renewable energy integration. Unlocking this flexibility will improve Switzerland’s energy resilience and sustainability while empowering consumers to participate actively in grid management. Future research should focus on scalable implementation and deployment: exploring business models for flexibility provision, evaluating new policy incentives, and demonstrating the use of flexibility at scale.
  • Role of grid and bulk storage in the integration of variable renewable energy resources: Framework for optimal operation-driven multi-period infrastructure planning
    Item type: Journal Article
    Knezović, Katarina; Marinakis, Adamantios; Evrenosoglu, Cansin Yaman; et al. (2021)
    Energy
    This paper presents a unified framework for quantifying the techno-economic value of various technologies in systems with high levels of variable renewables, which is of utter importance in evaluating roadmaps towards an affordable and sustainable future for various energy industry stakeholders. The optimal planning framework is based on integrating the solution of a transmission and generation/storage expansion problem with the solution of unit commitment, with the objective to minimize the total capital and operational expenditures over a selected horizon. The formulation includes, but is not limited to, traditional thermal units, pumped-hydro storage, batteries and transmission technologies. The decision variables include new cross-zonal transmission capacity, bulk energy storage and generation capacity, which are computed over the selected horizon while accounting for the impact of wind and solar variability on hourly (or sub-hourly) basis. A reduced representative version of the European system is used to demonstrate the value of transmission and bulk energy storage for a selected set of future scenarios, including scenarios corresponding to high proliferation of distributed energy storage and e-mobility. Comparative results are presented with emphasis on the renewable energy shares, investment costs, average cost of electricity, and carbon emission targets. Sensitivity analysis is performed considering technology and fuel costs.
  • SGEN Project: Distribution system in 2050
    Item type: Report
    Evrenosoglu, Cansin Yaman; Demiray, Turhan Hilmi (2024)
    The overall objective of this study is to quantify the CHF value of flexibility of distributed energy resources (DER) such as electrified demand (e.g. heat pump, EV charging), solar PV generation and distributed battery energy storage systems (BESS) at low voltage level to minimize or defer infrastructure investments in distribution grids while considering the impact of the technical capability and availability (reliability) of such resources, including the reliability of the ICT infrastructure. In order to achieve the objective, a framework is designed containing (i) data preparation including importing grid topology (urban and rural) from a commercial software, and creating/estimating reasonable synthetic demand, generation and storage profiles for each proliferation pathway, (ii) flexibility analysis by means of successive power flows in selected time resolution, including identification of temporal and spatial flexibility needs, and approximating the costs of meaningful flexibility providers, and (iii) demonstrating the potential of flexibility utilization for asset investment deferral, by comparing traditional approach, relying on worst case simultaneity factors. In this study central optimization of all resources for low voltage grid operation by means of optimal power flow is not used. It is assumed that the DER-owners (i.e., end customers) control their own resources according to their local objectives. The flexibility utilization is primarily based on shifting or reducing the demand locally either through established remuneration or bonus programs or through bilateral long-term contracts, which are not within the scope of this study. The implemented local strategies of delaying EV charging and shifting HP operation help reducing the simultaneity factors of these types, while the implemented local strategy for delaying BESS charging and discharging helps reducing the peak excess solar generation.
  • DFlex: Distribution system in 2050
    Item type: Report
    Evrenosoglu, Cansin Yaman; Demiray, Turhan Hilmi; Fuchs, Alexander (2024)
    The overall objective of this study is to quantify the CHF value of flexibility of distributed energy resources (DER) such as electrified demand (e.g. heat pump, EV charging), solar PV generation and distributed battery energy storage systems (BESS) at low voltage level to minimize or defer infrastructure investments in distribution grids while considering the impact of the technical capability and availability (reliability) of such resources, including the reliability of the ICT infrastructure. In order to achieve the objective, a framework is designed containing (i) data preparation including importing grid topology (urban and rural) from a commercial software, and creating/estimating reasonable synthetic demand, generation and storage profiles for each proliferation pathway, (ii) flexibility analysis by means of successive power flows in selected time resolution, including identification of temporal and spatial flexibility needs, and approximating the costs of meaningful flexibility providers, and (iii) demonstrating the potential of flexibility utilization for asset investment deferral, by comparing traditional approach, relying on worst case simultaneity factors. In this study central optimization of all resources for low voltage grid operation by means of optimal power flow is not used. It is assumed that the DER-owners (i.e., end customers) control their own resources according to their local objectives. The flexibility utilization is primarily based on shifting or reducing the demand locally either through established remuneration or bonus programs or through bilateral long-term contracts, which are not within the scope of this study. The implemented local strategies of delaying EV charging and shifting HP operation help reducing the simultaneity factors of these types, while the implemented local strategy for delaying BESS charging and discharging helps reducing the peak excess solar generation.
Publications 1 - 5 of 5