The SAFR project aims to demonstrate the viability of using large scale energy storage to address key challenges of future electricity grids delivering renewable energy to homes and businesses.

SAFR is a project funded
by the European Union’s LIFE+ programme.
More information



A key priority of the EU is to reduce CO2 emissions and promote renewable energy sources. The related quantified goals are laid down in the EU “20-20-20” targets. To reach these targets, the actors along the electricity value chain need to overcome some technical and operational challenges. Energy storage is considered to play a critical role in this regard. However, the wider deployment of currently available technologies for long-term storage is limited due to geographic site requirements, development gaps and capital costs.

The transition towards a more sustainable European energy system poses a number of challenges for electricity grids, and new ways to facilitate an increased feed-in of volatile distributed renewable energy sources (DRES) are required.


The project Storage Application For Renewables (SAFR) aims to enable a further expansion of the share of DRES by developing an innovative and highly flexible thermoelectric energy storage system. This system will operate as a flexible load (in order to avoid congestion) and as a generation unit (serving as a source of electricity in times of peak demand). The storage solution is highly flexible, location-independent and operates emission-free.

Specific objectives are to:

  • Demonstrate an innovative thermoelectric energy storage technology that can be used on a decentralised level and flexibly adapted to the specific application
  • Optimise the electricity network utilisation locally and reduce the need for network extension in general
  • Evaluate the technical performance and the environmental and economic benefits of the storage technology
  • Evaluate the operating models for this new type of storage technology and the financial models for enabling the participation of local, private and municipal actors

Expected results:

  • A high-temperature thermoelectric energy storage system
  • Optimised electricity network utilisation
  • Verified technical, environmental and economic performance
  • A novel operating model and financing concept
  • Demonstration of the technical feasibility of using cogenerated heat locally


The Layman’s Report is now available for download.


The SAFR project is a collaboration between Trianel GmbH and Carbon-Clean Technologies GmbH.



SAFR is supported by the European Union’s LIFE programme. LIFE is the EU’s financial instrument supporting environmental, nature conservation and climate action projects throughout the EU. Since 1992, LIFE has co-financed some 4 171 projects, contributing approximately €3.4 billion euros to the protection of the environment and climate.

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For further Information, please contact:

Andreas Lemke
Trianel GmbH

Krefelder Straße 203
D-52070 Aachen

+49 (0) 9241 41320-997

Dr. Robert Pfab
Carbon-Clean Technologies GmbH

Im Zollhafen 24
D-50678 Cologne

+49 (0) 221 355 755 0 +49 (0) 221 355 755 90