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Physical Storage

Physical Storage | BMWi
ENABEL: PEM electrolyser 12.4.2017

Power gap filler in the megawatt class

In the project "Stromlückenfüller" Researchers investigate a power-to-gas-to-power concept. The aim is to buffer excess solar and wind power in the form of hydrogen. For the conversion, the researchers are developing a PEM electrolyzer stack for a rated input power of one megawatt. The electrolyzer combines with a hydrogen storage and biogas technology giving an efficient storage system. ... more

Physical Storage | BMWi
Supply networks 4.10.2016

Coupling renewables with electricity and gas grids

In the KonStGas project scientists examined the potentials to integrate renewable energy sources, resulting from the coupling of energy networks. For this purpose, they model the energy flows of the total energy supply structure and evaluate the results from an economic perspective. They derive recommendations for the adjustment of energy infrastructure and future energy market. ... more

Physical Storage | BMWi
Flywheel energy storage systems 12.4.2017

New design reduces system costs

Flywheel energy storage systems can play an important role in stabilising the electricity grid. When required, they provide high outputs within milliseconds. The short-term electricity storage systems also act as active voltage filters for optimising the electricity quality. In the KoREV-SMS project, scientists are developing a flywheel energy storage system with an external rotor design. This results in a higher energy density with lower acquisition costs compared to conventional flywheel energy storage systems. .

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Physical Storage | BMWi
Stationary battery storage systems 8.11.2016

Cost-effective manufacture of lithium batteries

Compared with other electrochemical storage systems, lithium-ion batteries have high energy efficiencies, high energy densities and long service lives. They are therefore the first choice for many mobile applications. However, they are still not used very much as stationary storage systems and are comparatively expensive. It is intended that environmentally friendly and cost-effective production processes for the battery cells and storage systems shall change that. ... more

Thermal Storage

Thermal Storage | BMWi
Long-term storage 9.1.2017

Saisonal storage in aquifers

Aquifers have a large storage capacity and offer considerable potential as seasonal thermal or cooling storage systems. In a research project, researchers developed an improved storage concept for supplying heating and cooling energy to buildings and entire urban districts. For this purpose, they are combined the expertise from various specialist areas such as energy technology, geochemistry, hydrogeology, architecture and urban development. ... more

Thermal Storage | BMWi
Large scale emission-free electricity storage 18.10.2016

Compressed air instead of a pumped-storage power plant

Since 2009, scientists in the joint ADELE project are investigating adiabatic compressed air storage systems with a focus on turbo machines, thermal storage systems and caverns. In the ADELE-ING follow-up project, researchers are now comparing the various process versions. This is intended to drive forward the basic and detail engineering required for a preliminary demonstration plant and act as an investment basis. ... more

Thermal Storage | BMWi
Sorption heat storage 12.4.2017

Sorptive heat storage using activated carbon

Activated carbon can be produced from a large variety of carbonaceous source materials. Different methods have also been established for the process steps of carbonization and activation for use in commercial applications. In the project HyAcitv researchers optimize activated carbons and in a further step, molded articles are produced for use in open sorption systems. The application of these moldings is demonstrated in a laboratory storage system. .

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Thermal Storage | BMWi
Latent heat storage 18.1.2017

Increasing efficiency of power plants and electric arc steelworks

How can energy efficiency in industry and thermal power

plants be increased by using thermal energy storages? Researchers are studying

the integration of thermal storage in different industrial and CHP processes.

The focus is on high temperature storages with a storage temperature above 200

°C. A highlight of the project TESIN is the development, design, build,

commissioning and operation of a latent heat storage unit in the operating CHP

plant in Wellesweiler, Saarland of STEAG New Energies. ... more

Thermal Storage | BMWi
Latent heat storage 12.4.2017

Fridges with latent heat storage

Researchers are studying the economic and technical potential of refrigerators with phase change materials as a sliding load in the electrical network. The aim is to demonstrate the feasibility and advantages and to determine the costs. ... more

Thermal Storage | BMWi
Large-scale hot water storage tanks 12.4.2017

Segmental design reduces costs of storage tanks

Large-scale hot water storage tanks have proved to be reliable and efficient heat storage for cogeneration as well as for solar thermal plants and industrial processes. As part of the research project OBSERW, scientists try to reduce the construction costs of such storage tanks. To accomplish this goal they develop a segmental design for aboveground storage tanks from 500 to 8.000 m³ volumetric capacity. ... more

Supported by: The Federal Government on the basis of a decision by the German Bundestag


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