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[Client: AEMO/Australia] Lessons Learned from International Wind Integration Studies: Review of various wind integration studies to identify the key technical issues,
the methodologies and general results as well as key lessons learned. Furthermore, in conjunction with Australian Energy Market Operator (AEMO), determine which of the key results
and lessons are relevant to the National Electricity Market of Australia for consideration in future wind integration studies.
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[Client: Confidential (DNOs, Certification Bodies)] Grid Integration Studies: Energynautics performed several grid integration studies of integrating wind power plants into the
German distribution system. These were partly carried out for distribution network operators, but also for certification bodies according to SDLWindV (Ordinance on System Services by Wind
Energy Plants). Main focus of investigations were voltage issues, asset overloading, harmonics and flicker.
[Client: Energinet.dk/Denmark] Cell Project: The Cell Controller is a new architecture for intelligent mobilization of distributed energy resources. In normal operation the
plant operators control their generators while at the same time advanced voltage control for the DNO is performed. In emergency situations the distribution system can be transferred to
safe island operation. The concept was demonstrated in full-scale field tests.
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[Client: Greenpeace International/The Netherlands] European Grid Study 2030/2050: Study of the European electricity grid in 2030 and 2050
with regards to the infrastructure required to support up to 100% penetration of renewable energies. Optimization between costs of curtailing energy and reinforcing the grid, and the role
of demand-side management, storage, and grid reinforcements in integrating renewable energies as well as contributing to security of supply are discussed.
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[Client: EWI/Germany] Roadmap 2050 - A Closer Look: Cost-efficient RES-E Penetration and the Role of Grid Extensions: The context of this project is an optimization of the European
power system - electricity production and transmission grid - for two scenarios with 80% renewables by 2050. In scenario A, no restrictions in grid extension have been considered leading to an
overall optimal solution, whereas in scenario B a more realistic scenario has been calculated considering hindrances in grid extensions as from today‘s experience.
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[Client: VDMA/Germany] Comparison of Different Fault Ride-Through Solutions for Gas Engine Power Plants based on Simulations in DIgSILENT PowerFactory: Development of asset models
in high level of detail for simulation of behavior of gas engines gensets when exposed to system faults. Validation of the developed models by means of specifically developed measurement
methods on real units. Consulting assistance in approaching the grid operators and certification bodies for incorporation of appropriate modifications into the existing German Grid Code.
[Client: Confidential] Modeling and Simulation of Gas Engine Gensets in DIgSILENT PowerFactory and Matlab Simulink: Energynautics performed simulation studies of several gas
engine gensets of various rating on the subject of their capability to ride through a fault in the power grid as required by the German and French Medium Voltage Grid Codes. The simulation
results were analysed, whether additional mass is required for genset stabilization.
In another project, a validated DIgSILENT PowerFactory model of a gas engine genset was transferred to Matlab Simulink.
[Client: Confidential] Wind Turbine Converter Model in DIgSILENT PowerFactory: Energynautics developed and validated a time-domain model of a wind turbine generator system
in DIgSILENT PowerFactory in accordance with the relevant German validation standard (FGW TR4).
[Client: PV ERA NET/Europe] Smart Modeling of Optimal Integration of High Penetration of PV (Smooth PV): Smooth PV is a project which has the objective to study the impact of a
high penetration of solar PV on the future design and operation of the European power system and develop advanced modeling and simulations tools in order to identify the economical optimum
between the future generation mix and grid extension, including the need for a HVDC Supergrid.
The Smooth PV project is developed with the following partners: Institute for Energy Economics, University of Cologne, Germany; Royal Institute of Technology, Stockholm, Sweden;
Risø National Laboratory for Sustainable Energy, Technical University of Denmark; and Eindhoven University of Technology, Netherlands.
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[Client: aX grid solutions GmbH, EWR Netz GmbH/Germany] Aspects of integrating renewable energy sources into the EWR-grid: Within the distribution system of EWR a significant amount of wind
and photovoltaic power plants is expected to be built in the coming years. In order to cost-effectively integrate these power plants in existing grid structures, Energynautics developed a concept for an
automatic grid connection evaluation tool as well as a grid operator assistant tool.
[Client: Greenpeace/Luxembourg] Greenpeace Grid Study: Energynautics analysed the current situation and future scenarios of the Luxembourg power system regarding its transmission grid, power production,
consumption and potentials of renewable energies.
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[Client: TU Darmstadt/Germany] University Lecture: Dr. Thomas Ackermann and Dr. Eckehard Tröster have been assigned as lecturers of the course “Renewable Energies“ at the Darmstadt University of Technology.
The course consists of fundamentals of renewable energies with a focus on solar, wind and hydro power.
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