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The in.RET offers a range of different programmes on the topics of renewable energy technology. services on. These are aimed in particular at the area of Energy efficiency and energy utilisation from.

Likewise Consultancy services in the areas of Product/component optimisation to all components of renewable energy systems and technologies are part of our portfolio.

If you have a need for energy-related services, please do not hesitate to contact us:

DepartmentDepartment managementEnquiry by mail
Electrical energy systemsC. Schmidt, M.Eng.
Thermal energy systemsDr.-Ing. P. Leibbrandt
Power and work machinesR. M. Rathje, M.Eng.
Bioenergy systemsDr.-Ing. P. Leibbrandt
(comm.)

Advice on energy efficiency and utilisation

Energy is an important cost factor for many sectors, and not just for energy-intensive production processes. Energy costs are also very important in other areas of industry and commerce.

Our consulting services include

Integration of renewable energies:

We support you in integrating electricity and heat from renewable sources into your production processes. In doing so, we take into account the dynamics and flexibility of your processes, the possibilities of combined heat and power generation and the suitability of locations for energy generation plants and grid infrastructure.

Optimisation of the energy supply:

We support you in setting up a renewable electricity and heat supply. This not only offers cheaper energy, but also the possibility of local participation.

Cost security and environmental friendliness:

With our advice, you can secure cost benefits and fulfil the growing demand for environmentally friendly production. We take into account all available renewable energy sources and potential savings to find the best solutions for your specific needs.

Example projects:

  • Energy consulting on the use of renewable energies, apartment block, Winterfeldtstraße, Berlin
  • Yield forecast of various solar collectors for use in district heating networks, Erfurt
  • Climate-neutral Hohenrode Park, Nordhausen
  • CFD flow simulations for a new type of drinking water storage tank, Nordhausen
  • Feasibility study, conversion of coal-fired locomotives to the use of alternative fuels
  • Identification of transformation paths to climate-neutral production at a paper mill, Kehl
  • Development of transformation pathways for the decarbonisation of heat generation in a district heating network, Erfurt
  • Energy system modelling of the Free State of Thuringia Energy forecasts of the Federal State of Carinthia, Austria

Further information

Measurements in the Göttingen wind tunnel


Whether in the area of Rotor development of wind turbinesaviation or the automotive industry, which Measurements in wind tunnels are a fundamental part of research and development today.

They make it possible to carry out and analyse investigations on a model scale and to further develop the concepts accordingly, thereby making a significant contribution to the successful realisation of aerodynamic projects to perform.

Do you have models or sensors that you would like to test, but you still lack a wind tunnel for the measurement?
Then contact us via . In addition to pure rental with expert instruction, it is also possible to accompany the measurement on request. We will be happy to advise and support you with your project.

Are you unsure whether our wind tunnel is suitable for your requirements and would like more information in advance?
We have summarised the most important technical data for you here. It contains further details and insights into the system.

Weitere Infos zum Windkanal Göttinger Bauart

Photovoltaic modules and solar collectors

Photovoltaic modules

  • Preparation of site-specific energy yield reports, taking into account self-consumption concepts
  • Determining the performance of PV modules with the aid of flasher and sunlight simulators
  • Determination of ageing behaviour with the aid of climate chamber tests
  • Various tests for resilience and damage analysis using electroluminescence imaging, infrared camera and insulation testing

Solar collectors and thermal components

  • Performance testing of new types of solar collectors based on DIN EN ISO 9806, including PVT collectors and environmental heat exchangers, outdoor tests or indoor tests with continuous sunlight simulator
  • Static structural analysis of individual panes, insulating glass units, flat collectors, hook impact test, tau resistance
  • Storage tank tests with regard to fatigue strength, temperature stratification, charging and discharging behaviour, heat transfer capacity of e.g. tube coil heat exchangers or plate heat exchangers
  • Accompanying or independent investigation of collectors, storage tanks, heat exchangers using CFD flow simulation, strength analyses with FEM simulations.

All above-mentioned consulting and testing services according to individual offer