The Project


HERMES (Highly Efficient Super Critical ZERO eMission Energy System) aims to contribute to the renewable future by pioneering a zero-emission, highly efficient directly fired supercritical power system, operating in closed loop on renewable fuels.

The overall objective of the project is to assess the performance of HERMES system operating on a variety of liquid/gaseous renewable fuels to provide electricity with an efficiency above 65%, with net-zero GHG emission of other pollutants. The liquid and gaseous fuels that the system will be operating on will be methanol or hydrogen.

Highly Efficient Super Critical ZERO eMission Energy System


The project is comprised of three pillars covering specific Scientific and Technical Objectives (STO), main innovations, and key results. More specifically, the pillars are, a) Synthesis of renewable fuels for interchangeable GT (gas turbine) operation and their value chains, b) Fundamentals of zero emission highly efficient supercritical combustion of renewable fuels and c) system integration and assessment for technology maturity leap forward. The project follows a detailed assessment through experimental and computational approaches and dynamic simulation tools including digital twins and machine learning. assessment for technology maturity leap forward”.

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WP 1 Project Management and Coordination

WP1 will coordinate the actions of participants and monitor the progress of the project to ensure that all project goals are achieved. The objectives of this work package cover the identification, monitoring, and mitigation of project risks by performing an effective risk management, management of the data generated within the project, financial and administrative management, provision of reliable interface to the EC services and lastly, high quality of project outcomes.

Contact Person: Artur Pozarlik, Work Package Leader (

WP2 Renewable Fuel Generation and Compatibility with S-GT

WP2 is concerned with the analysis of the renewable fuel value chain for proposed energy system, towards integrated interchangeable renewable fuel pathways for high pressure GT production. Further objectives include the synthesis process for small scale and decentralized production of renewable CH3OH, the review of regulatory frameworks and EU policies for renewable fuels, storage, and integrated system operations, and lastly, the review of conversion processes for renewable fuels.

Contact Person: Hossein Madi, Work Package Leader (

WP3 Fundamentals of Zero-Emission High-pressure Combustion

The objectives of WP3 include the collection of high-pressure data regarding the flame and combustion characteristics of the selected renewable fuels, the delivery of open access, tabularized information related to ignition and mixing in supercritical fluids, the development of computational tools tuned to the supercritical combustion requirements and the investigation and analysis of methanol and hydrogen combustion in supercritical fluids, in laboratory scale test-rig configurations. Lastly, WP3 will produce benchmark outcomes of different computational approaches and models to evaluate tool and experimental data validity and replicability potential.
Contact Person: Artur Pozarlik, Work Package Leader (

WP4 System Prototyping and Integration

WP4 will provide guidelines for designing and engineering turbomachinery for closed loop supercritical cycles and proof of concept at a small-scale s-CO2 turbo-compressor. Among the objectives of WP2 are also the development of machine learning algorithms and tools, the delivery of an open access technology roadmap of integrated systems and lastly, the modelling of the integrated HERMES energy system and balances.

Contact Person: Jurg Schiffmann, Work Package Leader (

WP5 Techno-economic, Sustainability, Social and Policy Evaluation

WP5 Techno-economic, sustainability, social and policy evaluation
The objectives of WP5 are firstly to define and evaluate Key Performance Indicators for integrated energy assessment and then to describe and perform a technological feasibility assessment of the integrated system.
Contact Person: Maria Founti, (

WP6 Exploitation, Dissemination, and Communication

WP6 will deal with the dissemination of the project. The foreseen objectives are to increase the flow of information and ensure effective communication of the project’s results among research and industrial actors, to identify the exploitable results of the project’s various components and technologies, and to explore business models and business opportunities.
Contact Person: George Vourliotakis, Work Package Leader (

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