What's new:
Information on current issues.


Article on Seychelles Study published

Paris, October 2016

Institut Véolia and Ferdi have published a special edition of "FACTS Reports" about "Decentralized Electrification and Development". This release features an article contributed by energynautics, which presents the results of the study on the Seychelles islands.

Link to the article:

Open Position for Electricial Engineer

Darmstadt, September 2016

For our office in Darmstadt we are looking for a full time Electrical Engineer.

Please send your application via email to: bewerbung@energynautics.com by 16 October 2016

Further information can be found here (in German):

Internship in Renewable Energies & Electrical Networks

Darmstadt, September 2016

For our office in Darmstadt we offer an internship for a student in electrical engineering, physics or similar.

You support our team in ongoing projects or by doing research on questions regarding the grid integration of renewables. Moreover you may provide assistance in acquisition.

Please send your application via email to bewerbung@energynautics.com

Further information can be found here (in German):

6th Solar & 15th Wind Integration Workshop in Vienna/Austria | 14-17 November 2016

Darmstadt, August 2016

Register now and be part of the 6th Solar & 15th Wind Integration Workshop being held in Vienna, Austria on 14-15 and 15-17 November 2016, respectively. Book early to receive a considerable discount on single events as well as packages!

The Solar & Wind Integration Workshops are designed to provide a platform for consulting companies, universities, wind turbine manufacturers, TSOs/DSOs, independent R&D organizations, utilities, energy providers, and PV/CSP system developers to exchange technical and economic developments in the area of the large-scale integration of solar and wind power into power systems.

The idea is to facilitate the discussion between industry and academic participants by having presentations on research work as well as on practical experience and demonstration projects.

Beside the regular sessions the workshop week is filled with a list of accompanying events such as a tutorial, poster sessions, dinners and a study trip – Great opportunities for networking with participants from about 25 different countries.

Special Solar Topic 2016 is STORAGE!

Find the workshop programs and further details here:

2nd International Hybrid Power Systems Workshop in Puerto Rico | 6.-7. Deezember 2016

Darmstadt, August 2016

The 2nd International Hybrid Power Systems Workshop will focus on the deployment of wind, solar, battery and diesel technologies on isolated and islanded power systems and microgrids, discuss what has worked (and what has not), and provide insight into needed areas of improvement.

The workshop will provide a unique forum for:

  • technology vendors of distributed variable generation and storage technology
  • project developers and consultants
  • regulators
  • system planners and designers
  • operators of small systems

... to gain exposure to the latest thinking on the design and operation of hybrid power systems. It will look at applications in a variety of locations and operating environments, with a focus on system design, operating experience, business models, economics, and implementation issues.

The event is organized by the the Utility Variable-Generation Integration Group (UVIG), USA in partnership with Energynautics, Germany.

Find details here:

Open position for an Event Assistant

Darmstadt, June 2016

For our office in Darmstadt we are looking for a part time Event Assistant for the duration of 1.5 years.

Please send your application via email to bewerbung@energynautics.com by 24 July 2016.

Further information can be found here:

IRENA-Report – Scaling up Variable Renewable Power: The Role of Grid Codes

Bonn/Darmstadt, May 2016

The International Renewable Energy Agency (IRENA), supported by a consultancy work led by energynautics, has published a report discussing the role of Grid Codes in the context of increasing shares of variable renewable energies. An overview of technical requirements for generators is provided. Differences between countries are analyzed based on selected examples and are presented in the report.

This study is part of IRENA activities aiming to support policy-makers and regulators, especially in countries with low VRE planning, to significantly increase their VRE share in the power system.

Energynautics Company Newsletter 2016

Darmstadt, April 2016

Learn more about energynautics current and recently finished projects in our Company Newsletter 2016.

Further newsletters can be found in our overview or you may subscribe here.

Open position for Electricial Engineer

Darmstadt, February 2016

For our office in Darmstadt we are looking for a full time Electrical Engineer.

Please send your application via email to: bewerbung@energynautics.com by 25 March 2016

Further information can be found here:

Student position for Master/Bachelor Thesis or Internship

Darmstadt, February 2016

For our office in Darmstadt we offer a Master/Bachelor thesis or internship in hydro dispatch modelling for a duration of 3 to 6 months.

Please send your application via email to: bewerbung@energynautics.com

Further information can be found here: CLOSED!

Open position for Student Assistant

Darmstadt, January 2016

For our office in Darmstadt we are looking for a student assistant for projects in renewable energies and electrical networks.

Please send your application via email to: CLOSED!

Expert Exchange on Network Integration of PV and CSP at the 5th International Solar Integration Workshop, 19-20 October 2015 in Brussels

Darmstadt, September 2015

Press Release

The integration of renewable energy generators into the electricity grid is a critical factor in the restructuring of the energy sector. Experience and best-practice from projects in Europe and around the world will be showcased at the 5th Solar Integration Workshop, which runs in Brussels from the 19th to 20th October 2015. You may register online until 11th October.

"At the conference we expect again a large number of highly-experienced experts from companies and leading research institutes, who will exchange ideas and report on their latest experiences" says Dr. Thomas Ackermann, CEO of the organizer Energynautics GmbH.

The spectrum of topics ranges from Photovoltaic (PV) power plants to Concentrated Solar Power (CSP) and from the integration of solar power in distribution networks to questions of supply security. Flexibility from conventional generators, insolation forecasts and grid code issues will also be intensively discussed.

In the program there is also the opportunity to take part in the "Solar Dinner" on the first evening of the event. Directly after the one-and-a-half-day conference follows the 14th Wind Integration Workshop from 20th to 22nd October 2015 at the same location. Participants of both events can profit from special discount rates. On 23rd October 2015 there is a study trip to the network expansion project "Stevin", carried out by network operator Elia near the Belgian coast.

The Solar Integration Workshop takes place at the Sheraton Brussels Airport Hotel and the conference language is English. The program and registration rates can be found here:

Intelligent Technologies can almost halve the Grid Extension Costs of Distribution Network Operator EWR

Darmstadt, September 2015

In May 2015 Energynautics was commissioned by the Distribution Network Operator EWR Netz GmbH, located in Rhineland-Palatinate, to calculate and adapt the results of the Rhineland-Palatinate Distribution System Study for its supply area. The Rhineland-Palatinate Distribution System Study was carried out by Energynautics, the Öko-Institute and the law office Bird&Bird; on the basis of different scenarios, the possibilities for Rhineland-Palatinate to cover the state’s electricity demand completely with renewable energies (RE) by 2030 (100% goal) were assessed.

In the EWR study the RE capacity that has to be installed in EWR’s supply area for the 100% goal is compared to the real expansion of RE. Additionally, the grid expansion required for EWR’s distribution network and the corresponding costs are calculated. In order to adapt the calculations to the special characteristics of the EWR grid, the assumptions of the Distribution System Study are scrutinized and modified, if necessary.

The calculations show that between 2012 and 2014 more RE plants were installed in EWR’s supply area than predicted assuming the 100 % goal, and that EWR can reduce network extension costs arising according to the scenarios by 2030 from € 70m to € 40m by using intelligent technologies, such as wide area voltage control and controllable medium to low voltage transformers.

Energynautics' contribution to the E-Mobility Project of the German Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB)

Darmstadt, September 2015

In January 2015, energynautics was commissioned by Öko-Institut e.V. to assess the effects of high shares of electric vehicles on the distribution grid as a part of an E-Mobility project of the German Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety. Conducting a meta study, Energynautics focused on the use of electric vehicles to facilitate the integration of decentralized renewable generation into the German distribution grids. The study was completed in July 2015 in the form of a 30 page report, which will be presented at the project’s stakeholder workshop in September.

Simulation models gain importance in verifying compliance with grid codes

Darmstadt, September 2015

Press Release

An increasing share of electricity production from renewables means that more and more conventional power plants that formerly provided ancillary services for grid operation and system stability are no longer in operation. For this reason, new grid codes have been developed that prescribe how individual generation units should operate in normal as well as critical grid situations.

Many critical situations in the grid cannot be tested in a real environment due to the high risk of power outages. Computer simulations are therefore used to predict the behavior of a generator and the grid. To get reliable and representative results from the model, the grid operator has to understand the properties and behavior of all the generators in the grid. Power producers are often required to submit simulation models in a specified format before they are allowed to connect their unit to the grid. The use of models and simulation is an important part of the German certification process to substantiate a power generator's compliance with grid codes.

Energynautics offers such modeling services as a specialist in the model development of solar photovoltaics (PV) and battery inverters, wind turbines, and combined heating and power plants (CHP). More than 20 models developed by Energynautics have been successfully certified by various German certification authorities.

To confirm the quality of the model, it has to be validated against measurement data. In Federation of German Wind Power and Other Renewable Energies (FGW) Technical Regulation No. 4 (TR4), the validation procedure is described together with how to use derived measurements and compare them to simulation results. The method described is currently being revised to align with the IEC 61400-27-1 international standard. As this standard was originally developed for wind power and does not include any limits on the discrepancy allowed between simulation and measurement results, the FGW working group, including Dr. Tröster from Energynautics, is currently discussing necessary changes regarding solar PV and combined heating and power plants, and reasonable limits for evaluating the accuracy of the models. The next revision of the FGW TR4, including the IEC standard, will be released in January 2016.

Energynautics is well prepared to develop models for certification in line with the latest regulations. To be able to quickly develop a robust and precise model, Energynautics has developed a number of tools to support the modeling process. These include a system identification tool for parameter tuning and an evaluation tool to determine the accuracy of the model according to FGW TR4 and the new IEC 61400-27-1 standard.

Modeling, certification and grid codes will be discussed in more detail at the upcoming 5th Solar and 14th Wind Integration Workshop in Brussels from 19 to 22 October 2015; the workshop is organized by Energynautics.

Grid integration study for Costa Rica has started

Darmstadt, August 2015

energynautics, together with DIgSILENT and Meister Consultants Group, was commissioned by the Costa Rican utility ICE and the Costa Rican Ministry of Energy, MINAE, to conduct a grid study for the Costa Rican transmission grid. The project is financed by the Inter-American Development Bank, IDB. The objective of the study is the development of strategies to integrate wind and solar energy into the currently primarily hydro-based system. Variable renewable energy sources are intended to help Costa Rica, which already has an almost completely CO2-free electricity sector, to keep up with growing electricity demand. Furthermore, some of the best onshore wind locations in the world, with yearly capacity factors above 50 %, are located in the province of Guanacaste in northern Costa Rica, drawing considerable interest from investors.

energynautics CEO Dr. Thomas Ackermann and two members of the energynautics team travelled to Costa Rica for one week in late June 2015 to discuss the proposed methodology of the study with ICE, MINAE and the IDB. Furthermore, the team was able to have a look at the structure of electricity generation and transmission on-site, visiting a wind power plant in Guanacaste as well as the Arenal Lake, the country’s largest hydro reservoir.

Results of the study are expected to be published in mid-2016.

Energynautics will revise the Barbados Grid Code

Darmstadt, August 2015

The Barbados Light & Power Company has engaged the services of energynautics to review and expand on its grid code. The grid code regulates the technical requirements for customers generating electricity to connect to the utility’s grid. energynautics will work with Light & Power for a period of 10 weeks on this project.

Barbados is experiencing rapid growth in customer solar installations on the island. According to System Planning and Performance Manager, Johann Greaves, ‘The utility now has 8 megawatts (MW) of photovoltaic (PV) customers connected to our network and another 8 MW approved and awaiting connection. In addition to this, Light & Power has plans for a 10 MW solar PV plant and a 10 MW wind plant in the near future. This is all fitting with the Government’s goal to cover 29% of its energy needs from renewables by 2029.’

With a peak load of 152 MW and increasing intermittent generation capacity, the Grid Code has to be updated to accommodate the changing circumstances of the power system. Mr. Greaves noted that ‘the Intermittent RE Penetration (IP) Study for Barbados identified several changes to the Grid Code necessary to integrate more renewables, including requirements for fault ride through capabilities and voltage control. As a Company we remain supportive of alternative energy and all this is a necessary part of the move to a sustainable future.’ energynautics will revise the Barbados Grid Code in light of the recommendations of the IP Study, and will develop new Planning and Operation Codes for the Grid Code.

  • Morgan Lewis Sugar Mill in St. Andrew, Barbados - The Caribbean's largest and only working windmill. Photos: Thomas Ackermann, Energynautics

Open position at energynautics in Darmstadt

Darmstadt, July 2015

For our office in Darmstadt we are looking for a physicist or mathematician for the simulation of power systems (40 hours/week). Further information can be found in our job posting below.

Please send your application by 23. August 2015 via email to: bewerbung@energynautics.com

Energynautics Modelling for Greenpeace shows how Jiangsu Province in China can triple its renewable targets for 2020

Darmstadt, July 2015

In a report based on modelling work done by energynautics, Greenpeace East Asia has demonstrated how Jiangsu Province in Eastern China can reach ambitious renewable energy targets by 2020 in a cost-effective way.

Jiangsu currently generates the majority of its electricity from coal, resulting in high CO₂ emissions and bad air quality. Current plans would increase wind and solar photovoltaic capacity in Jiangsu to 10 GW each by 2020, covering just 5% of its electricity demand from renewables.

energynautics’ modelling shows how Jiangsu can triple these targets and install 30 GW of wind, 30 GW of solar and 3 GW of biomass by 2020, thereby covering 14% of its demand with renewables from within the province. Simulations of the transmission network showed that while some grid upgrades are necessary to integrate wind generation from coastal regions where wind speeds are good, over half of the necessary grid extensions can be avoided by using innovative new grid technologies, such as Dynamic Line Rating. Dynamic Line Rating allows network operators to raise the thermal capacities of transmission lines when there is extra cooling due to the wind, thus avoiding grid upgrades.

The Greenpeace East Asia report demonstrates that there are no technical hindrances for Jiangsu to triple its renewable energy targets for 2020. Such an increase in renewables capacity has already been achieved by Germany in a similar time frame.

All modelling and simulation work was conducted during a month-long mission to China by two energynautics researchers. Jiangsu State Grid Corporation and the Chinese Renewable Energy Industries Association provided assistance to develop the scenarios.


Paper of this project (in English)

Greenpeace East Asia Press Release (in English):

Greenpeace East Asia Press Release (in Chinese):

Lead article published in COSPP magazine

Darmstadt, May 2015

In the latest issue of the magazine Cogeneration & On-Site Power Production (COSPP, Volume 16, Issue 3) Dr. Tröster from energynautics published an article on the importance of Grid Codes and the validation of computer models for CHP installations when establishing Grid Code compliance in Germany.

COSPP is a magazine which focuses on the clean and efficient generation of power through decentralized generation and combined heat and power for an industrial, utility and governmental readership.


The online version of the article can be found here:

Number 15 has been successfully certified!

Darmstadt, May 2015

According to the German Medium Voltage Grid Code, dynamic models have to be provided for generation units in order to receive a certificate for proof of grid code compliance. energynautics is specialized in developing models of combined heat and power (CHP) as well as wind and solar power plants. Recently the 15th model developed by energynautics was successfully validated and certified.

Currently there are a couple more models under development in order to receive the required certifications for CHPs by 30th June 2015. This is the deadline according to the recommendation of BDEW (German Association of Energy and Water Industries) to submit the certificate in order to avoid the disconnection of generation units.

For further information visit:

5th Solar & 14th Wind Integration Workshop | 19 - 22 October 2015, in Brussels/Belgium

Darmstadt, April 2015

This year's Call for Papers for the Solar & Wind Integration Workshop is now open!

Take this opportunity to present your research or technical developments to a large international audience in the field of the integration of solar and wind power into power systems.

Be one of 60+ solar & 120+ wind speakers!

The online abstract submission deadline is 7 June 2015

The best 15 papers of our workshops will again be selected for a special issue of the IET Renewable Power Generation journal.

Further benefits:

  • Receive a discount on the participation fee
  • All admitted papers and posters will be published in our printed and digital proceedings
  • Network with experts from 25+ different countries

For detailed information visit:

Successful workshops for energynautics in Berlin

Darmstadt, January 2015

The 4th Solar and the 13th Wind Integration Workshop took place in Berlin in November 2014. With 175 solar and 300 wind participants the 2014 edition was a very successful workshop year for the organizer energynautics.

Get an impression of the workshops' atmosphere, be inspired by the lively discussions an its open spirit.


For detailed information about our workshops 2015 in Brussels see:

Energynautics at Cigré Technical Exhibition 2014

Darmstadt, 02 June 2014

Got grid? Got renewables? Add our integration knowledge for success!

We support grid operators worldwide in achieving new levels of sustainable generation. Our services reach from vision development to grid integration studies and support in power system operation. Our international experts conduct studies on integrating a wide range of renewables into island power systems or into distribution and transmission systems of any size.

The Technical Exhibition will be held in parallel to the Cigré sessions from:
25 - 29 August 2014, in Paris/France.

Visit us at our stand Level 1, #113 and talk to our experts. Or would you like to make an appointment for meeting us on-site? Please contact us:

Phone: +49 (0)6151-785 81 00
Email: info@energynautics.com

A press release and further informationen about the event can be found here:

Energynautics and partner win World Bank Seychelles Project

Darmstadt, 05 May 2014

Energynautics in cooperation with Meister Consultants Group, Inc. (Boston/USA) has won a World Bank project "for the Assessment of Grid Absorption Capacity, Grid Code, Feed-In Tariffs and Model Power Purchase Agreements for Renewable Energy Systems" on the Seychelles.

The aim of the project is the development of a grid code for the national power system under consideration of increasing shares of renewable and evaluation of the grid absorption capacity. For the evaluation of the grid absorption capacity regarding renewable energies, a detailed power system model of the national power system is developed.

A press release can be found here:

Results of the Distribution System Study Rhineland-Palatinate

Darmstadt, 23 April 2014

The results of the Distribution System Study Rhineland-Palatinate by energynautics will be presented in May/June 2014 at the following events:

  • Fachgespräch: Perspektiven der Entwicklung des Stromnetzes und der Stromspeicherung in der Metropolregion Rhein-Neckar
    Date: 26 May 2014
    Location: Ludwigshafen/Rhein, Germany
    Organizers: Verband Region Rhein-Neckar, StoREgio and Energieagentur Rheinland-Pfalz
  • Verteilnetztagung
    Date: 18. June 2014
    Location: Schloss Waldthausen in Budenheim, near Mainz, Germany
    Organizer: Transferstelle für Rationelle und Regenerative Energienutzung Bingen - TSB
    Flyer Verteilnetztagung 2014 (PDF | 877 kB)

Looking forward to seeing you at one of the events!

A press release can be found here:

Greenpeace publishes powE[R] 2030

Darmstadt, 20 March 2014

Greenpeace published today the report powE[R] 2030, that was developed together with energynautics.

It bases on the past reports "renewable 24/7" and "Battle of the Grids" by Greenpeace and energynautics, which looked at integrating high levels of renewables into the European power and transmission system.

This modelling has now been updated for "powE[R] 2030", with higher shares of renewables, better modelling of inflexible conventional generation (and the conflicts with renewables that ensue from this inflexibility) and a more detailed focus on HVDC technology. It was found that an "Overlay" HVDC grid to transport renewable energy over long distances in Europe can significantly reduce the total network expansion and avoid expensive curtailment of wind and solar power. In total Europe can cover 77% of its electricity supply using renewables with a network expansion of just 26,000 km.

The report can be downloaded here:

Distribution System Study Rhineland-Palatinate

Darmstadt, 13 February 2014

The Distribution System Study Rhineland-Palatinate by Energynautics, Oeko-Institut e.V. and Bird & Bird LLP, presented at the press conference of the Ministry for Economic Affairs, Climate Protection, Energy and Regional Planning of the German State Rhineland-Palatinate can now be downloaded here:

Press release of the ministry (in German):

Press conference for the Distribution System Study Rhineland-Palatinate

Darmstadt, January 2014

The state government of Rhineland-Palatinate aims to cover the state's electricity demand completely with renewables by 2030. In a study, commissioned by the Ministry for Economic Affairs, Climate Protection, Energy and Regional Planning of the German State Rhineland-Palatinate, the impact of the 100% renewable energy strategy on the power system was studied by Energynautics, the Oeko-Institut e.V. and the law firm Bird & Bird LLP.

The results of the Distribution System Study Rhineland-Palatinate will be presented at the press conference of the ministry in Mainz on 03. February 2014.

Japanese Edition of "Wind Power in Power Systems"

Darmstadt, January 2014

The 2nd edition of the highly acclaimed "Wind Power in Power System" (Editor: Thomas Ackermann, Energynautics GmbH) is not only available in English but was recently translated into Japanese and can now be ordered online.

Find detailed information on the book here:

New company address

Darmstadt, November 2013

As of 23 December 2013 our office in Darmstadt will be the new main office:

Energynautics GmbH
Robert-Bosch-Straße 7
64293 Darmstadt
Telephone +49 (0)6151-785 81 00

Please use the new address as of the date mentioned above. Thank you!

Renewables Integration Symposium 2013

Darmstadt, April 2013

We would like to welcome you to the Renewables Integration Symposium to be held in Mainz/Germany on 19 - 20 June 2013.

This years’ topic: „High Integration Issues: Integration of Renewable Generation into the Distribution Network – Experience and Solutions from Germany and the World”

The symposium languages will be English and German with simultaneous translation.


  • Session I: Operation strategies for distribution networks with high share of renewables
  • Session II: Interface between distribution and transmission network: What is needed from both sides!
  • Session III: Principle solutions to high penetration challenges
  • Session IV: High renewable penetration levels and Smart Grids
  • Session V: Panel discussion

For a detailed program please visit:

To get a discounted rate, register now as an Early Bird until 30 April 2013:

Energynautics Christmas Newsletter 2012

Darmstadt, December, 2012

Find out more about energynautics’ current projects and the upcoming Wind and Solar Integration Workshop as well as the Symposium 2013.

The newsletter is available here:

Recent job opportunity

Darmstadt, October 2012

Due to the steadily growing demand for our services, we would like to strengthen our team with a new renewable energy consultant.

Find more information here:

Greenpeace releases Smart Energy Access Report for Bihar, India

Langen, Germany (May 2012)

Together with Greenpeace, energynautics has investigated the potential role of microgrids in rural electrification. The microgrid approach is attractive because it can facilitate the integration of renewable energies, thereby contributing to national renewable energy targets. Being built from modular distributed generation units, it can adequately adjust to demand growth. In addition, it can operate both in island mode and grid-connected mode, making operation flexible and can also offer grid support features.

This report demonstrates with a case study how this bottom-up approach with microgrids would work. It focuses on development in the state of Bihar in India.

Find more information here:

Cell Pilot Project Denmark: Final Report available

Langen, Germany (March 2012)

energynautics was together with Spirae Inc. and Siemens A/S one of the main project partners of the Danish network operator Energinet.dk for the development of an intelligent monitoring and controlling system (Cell Controller) for power networks. The Cell Controller enables and optimizes the integration of 50% renewable energy. The project was successfully completed in November 2011.

The final report is now available online and can be obtained here:

Wind Integration Symposium 2012

Darmstadt, March, 2012

The 2. Wind Integration Symposium will be held in Frankfurt/Main from May 8 - 9, 2012 covering the following topic: “Integration of Renewables - High Penetration Issues: Understanding and Managing the Changing Power System Dynamics with high Level of Non-Synchronous Generation”.

The 5 symposium sessions are:

  • Session 1: Experiences and challenges for TSOs/DSOs associated with high penetration of renewables Analysis of Experiences of Power System technical challenges for countries with high instantaneous penetration of non-synchronous plant.
  • Session 2: Analysis of associated challenges of high penetration
  • Session 3: Principle solutions to high penetration challenges
  • Session 4: Modelling challenges for investigation of high penetration challenges
  • Session 5: Panel Session

We are looking forward to having you as a participant at the symposium.

Find more information here:

Energynautics Christmas Newsletter 2011

Darmstadt, December, 2011

Find out more about Energynautics current projects and the upcoming Wind and Solar Integration Workshop as well as the Symposium 2012 in our Christmas Newsletter.

The newsletter is available here:

Dr. Thomas Ackermann and Dr. Eckehard Tröster lecturers at Technical University Darmstadt

Darmstadt, December 13, 2011

Dr. Thomas Ackermann and Dr. Eckehard Tröster have been assigned as lecturers of the course „Renewable Energies“ at the Darmstadt University of Technology since the winter term 2011/2012. The course consists of fundamentals of renewable energies with a focus on solar, wind and hydro power.

Report for AEMO Wind Integration Investigation published

Australia, December 06, 2011

Commissioned by the Australian Energy Market Operator (AEMO), energynautics prepared a report which reviews wind integration studies conducted around the world. The report provides a summary of the experiences in terms of the key technical issues studied, the methodologies and assumptions used, and main conclusions of the investigations, with a focus on island operation of power systems, and with high penetration of variable renewable energy generation. Aspects that are relevant to the NEM were identified in conjunction with AEMO, and suggestions on how AEMO could prepare comprehensive wind power integration studies for the expected level of renewable energy development in the future were made. These findings are also presented in this public report.

Download this report here:

For more information visit AEMO's website:

Grid study „Roadmap 2050 – a closer look“ released

Berlin, October 19, 2011

At a press conference held in Berlin on October 19th 2011, Dr.-Ing. Eckehard Tröster and our project partners of the „Institute of Energy Economics at the University of Cologne“, presented the study Roadmap 2050 – a closer look: Cost-efficient RES-E penetration and the role of grid extensions.

This study analyses the investment needs on the European power grids with a share of 80% renewables.

Download this study here:

Grid study for Greenpeace Luxembourg

Luxembourg, July 06, 2011

At the press conference in Luxembourg on 6 July 2011, Eckehard Tröster from Energynautics presented the Study for import of electricity from renewable energy to Luxembourg with special consideration of new high voltage power lines between Luxembourg and France.

Journalists gained insight into the current situation of the Luxembourg grid and received important information on topics such as the security of energy supply and the expansion of renewable energy.

The study can be downloaded here (in German only):

Dr. Thomas Ackermann instructor at SIDA-Workshop 2012

Stockholm, Sweden, May 11, 2011

Dr. Thomas Ackermann will be participating as instructor at the 2012 SIDA workshop Wind Power Development and Use. The workshop will be held in five phases, taking place in Asia/Africa, Sweden and India. The objectives of the workshop are to provide an understanding of the importance of wind power regarding climate change, to focus on the advantages and disadvantages of wind power and to provide knowledge and understanding of the entire process of the utilisation of wind energy.


European grid study 2030/2050

Brussels, Belgium, January 18, 2011

Commissioned by Greenpeace International, energynautics has prepared a study on the future European electricity grid in 2030 and 2050 to assess the infrastructure required to support up to 100% penetration of renewable energies as predicted by the latest Energy [R]evolution scenario. The study discusses the role of demand-side management, storage, and optimization of renewables production in smoothly integrating renewable energies as well as maintaining a secure supply of electricity.

If you have any further questions, please feel free to contact our team.

  • Email: Email

Energynautics Workshop in Aarhus, Denmark in October 2011

Langen, Germany (January 2011)

The 10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants will be held in Aarhus, Denmark on 25 and 26 October 2011. For the first time, a Solar Integration Workshop will be part of our program.
For information on the workshop, see www.windintegrationworkshop.org,
for Call for Papers see http://www.windintegrationworkshop.org/callforpapers.html.

Grid design by energynautics has been used in McKinsey study

Langen, Germany (October 2010)

The new study »Transformation of Europes's power system until 2050«, conducted by McKinsey, shows how the European power system will develop until 2050. In this study, energynautics was significantly involved in the grid design for the various scenarios.
Further information on the European grid model can be found here.

Dr. Eckehard Tröster on Powergrid Europe 2010 in Amsterdam

Amsterdam (9th June 2010)

Dr. Eckehard Tröster presents the results of the fault ride through study of gas-engine CHPs commissioned by VDMA on Powergrid Europe in Amsterdam.

The presentation can be downloaded here: FRT Study Powergrid 2010 Amsterdam (PDF | 1,1 MB)

Presentation of the Fault-Ride-Through Study at the network technology/network operation forum in the VDE (FNN)

Langen, Germany (April 2010)

According to the new medium voltage grid codes in Germany, generating plants must stay connected during a short-circuit fault in the grid. Due to their low inertia and the difficulties in shutting off the gas supply abruptly, gas-engine gen-sets accelerate during a fault and cause the generator to fall out of step with the grid frequency, decoupling it from the grid.
Commissioned by VDMA, energynautics has studied different solutions to this problem, such as increasing inertia, using a braking resistor or eddy-current brake, or a full power converter to improve the fault-ride-through behaviour of the gen-set in order to stay safely connected to the grid.
Investigations have been carried out using the software tool DIgSILENT PowerFactory and were based on the data of five gen-sets in the range of 220 kW up to 6.9 MW.
The study gave valuable insights for the discussion between the grid operators and the gen-set manufacturers.

Wind Energy Courses 2010

Langen, Germany (January 2010)

Thomas Ackermann holds courses during the following events on network integration:

  1. The course Wind Generation in Power Systems organized by UWIG A Short Course on the Integration and Interconnection of Wind Power Plants into Electric Power Systems will be held between 21 and 24 September 2010 in Austin, Texas. Details regarding registration and accommodation will be shortly available at http://www.uwig.org/.
  2. The course Wind Power Development and Use organized by Life.se (www.life.se) and SIDA (Swedish International Development Cooperation Agency) was held in April 2010 in Sweden. The course will particularly discuss power supply in developing countries.

Thomas Ackermann on the Handelsblatt Annual Meeting of the Energy Industry 2010

Langen, Germany (December 2009)

Thomas Ackermann presents the latest results of the cell pilot project where energynautics together with the Danish network operator Energinet.dk develops a new network management technology. The Annual Meeting with an expected 1000 participants is the most important meeting point of decision-makers of the German energy industry. More than 60% of all participants are board members and CEOs. For programme details see http://www.handelsblatt-energie.de/pdf/P1200320.pdf.

Energynautics Workshop in Québec, Canada in October 2010

Langen, Germany (December 2009)

The 9th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants will be held in Québec City (Québec, Canada) on 18 and 19 October 2010. For information on the workshop, see www.windintegrationworkshop.org; for Call for Papers see http://www.windintegrationworkshop.org/callforpapers.html.

Study on the European Supergrid commissioned by Greenpeace

Langen, Germany (November 2009)

On behalf of Greenpeace, energynautics has prepared the study Renewable Energy Supply 24/7. The study discusses intelligent power networks that can match consumption and generation – even of large-scale decentralized and renewable energy – and ensure the secure energy supply in the 21st century. The study is available at: http://www.greenpeace.de/fileadmin/gpd/user_upload/themen/energie/renewables24-7.pdf.pdf (in English)

Energynautics Workshop in Bremen was a big success

Langen, Germany (October 2009)

Energynautics held the 7th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms between 14 and 16 October 2009 in Bremen and could welcome over 330 participants from about 30 countries. For further information, see: http://www.windintegrationworkshop.org/bremen2009/index.html

Short courses SIDA and UWIG

Langen, Germany (September 2009)

Thomas Ackermann held courses during the following events on network integration:

  1. The short course organized by UWIG Wind Generation in Power Systems: A Short Course on the Integration and Interconnection of Wind Power Plants into Electric Power Systems was held between 14 and 17 September 2009 in Charleston, SC, USA.
  2. The short course Wind Power Development and Use organized by Life.se (www.life.se) and SIDA (Swedish International Development Cooperation Agency) was held in September 2009 in Sweden. The course particularly discusses power supply in developing countries. For details see http://www.life.se/system/visa.asp?FID=779&HID=797&HSID=13729&ActMenu=13733&ActSubMenu=13740.

EcoGrid study completed

Langen, Germany (August 2009)

On behalf of the Danish network operator Energinet.dk, energynautics prepared together with other Danish and foreign partners a study that discusses the necessary changes of the Danish network design over the next 10 to 15 years. The main focus is on technical and economically feasible solutions for the integration of large-scale wind energy. The study is available at http://www.e-pages.dk/energinet/137/.

Workshop 09 - 10 March 2009

Langen, Germany (March 2008)

The 2nd International Workshop on Concentrating Photovoltaic Power Plants: Optical Design, Production, Grid Connection took place on 09 - 10 March 2009 with over 100 participants in Darmstadt, Germany. Read the press release regarding this workshop. Here you find further information: www.concentrating-pv.org

New Website online

Langen, Germany (August 2008)

You may have already noticed: The new energynautics website is online! New design and easy navigation are the key elements of this internet appearance that extensively informs about the company and projects. In addition, it provides links to Workshops, conferences, relevant publications and others. "We wanted to have an Internet appearance that reflects the high quality demand of our work", says Thomas Ackermann, CEO of energynautics. "Our customers should get a good first impression." The website was designed and implemented by chives Darmstadt, Germany.

Cell Pilot Project Denmark: First test phase successfully completed

Langen, Germany (January 2009)

energynautics is together with Spirae Inc. and Siemens A/S one of the main project partners of the Danish network operator Energinet.dk for the development of an intelligent monitoring and controlling system (Cell Controller) for power networks. The Cell Controller enables and optimizes the integration of 50% renewable energy. Now the first comprehensive test under life conditions was successfully completed in the Danish power network. energynautics mainly worked with the simulations of the system stability. For further information, see http://www.energinet.dk/EN/El/Nyheder/Sider/Energinet.dk-in-front-with-Smart-Grid-concept.aspx.

Workshop 26 - 27 May 2008

Langen, Germany (May 2008)

On 26 - 27 May 2008, energynautics organized the 7th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms in Madrid, Spain and could welcome 280 participants to that event.

The workshop provided a framework for:

  • Discussing technical and economic issues of the large-scale integration of wind power including the recent advances in transmission technology (AC and DC);
  • Discussing project experience;
  • Discussing innovative ideas and present results from ongoing research;
  • Stimulating interdisciplinary thinking between wind energy and power transmission industries as well as universities;
  • Identifying subjects requiring more research efforts;
  • Exchanging ideas, results and knowledge;
  • Comprehensive discussions and brainstorming.
  • In addition, the workshop included a field trip to the control centre of the Spanish Transmission Network Operator REE and to Iberdrola's control centre for renewable energies.