Our News
Hydrogen, Europe & Green Deal, Industrial transition
Europe must provide even better incentives for renewable hydrogen
Ariadne researchers have analysed the EU framework for the ramp-up of hydrogen. This energy carrier, produced with electricity from renewable sources, is intended to decarbonise sectors that are difficult to electrify, such as the chemical and steel industries.
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Europe & Green Deal
Staying the course in turbulent times: A dialogue with the Ariadne Project on future EU energy and climate policy
The Ariadne project provides the results of the three-day event on EU climate and energy policy (9-11.12.2024) in Brussels.
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Governance & Institutions
Under scrutiny: How EU diplomacy handled the design and launch of the Carbon Border Adjustment Mechanism
The European Union’s outreach to third countries during the introduction of the Carbon Border Adjustment Mechanism was rigid and uncoordinated, new Ariadne analysis has found. Researchers investigated how the EU organized its diplomacy to counter trade concerns during the …
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Hydrogen
Low Carbon Hydrogen: strategic approach missing in EU’s regulatory framework, but crucial to ensure climate protection
The use of low carbon hydrogen based on non-renewable sources is considered as a transitional solution for the market ramp-up of renewable hydrogen. A new Ariadne paper shows that a strategic approach clarifying the role of non-renewable low carbon …
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Governance & Institutions, Heating transition
Knowing what works: How to improve the evaluation of existing climate protection measures
In order to assess the success or failure of strategies to reduce emissions in the building sector, reliable data, evaluation of all policy programs, good timing of evaluations and their inclusion in political reform processes are necessary – foundations …
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Paths to climate neutrality
Gabriele Tirelli / Unsplash Transport transition
Heliberto Arias / Unsplash Electricity transition
Federico-Beccari / Unsplash Heating transition
Julian Hochgesang on Unsplash Industrial transition
Maxim Tolchinskiy on Unsplash Hydrogen
Peter Schreiber / Shutterstock Tax reform
StellrWeb on Unsplash Governance
Moritz Lüdtke / Unsplash Europa & Green Deal
Christian Lue / Unsplash 
Publications
Ariadne-Analysis: Hydrogen in the Reformed EU ETS – Implications for Competitiveness and Emissions Reductions
The use of renewable hydrogen is considered an important element for the decarbonization of sectors that are hard to electrify, such as the steel and chemical industry or aviation (European Commission 2020, Ferrario et al. 2022). However, the volume …
Analysis: Selling CBAM – Diplomacy for the European Union’s Carbon Border Adjustment Mechanism
The analysis addresses the question of how the EU’s key institutions understood their diplomatic role with regard to the Carbon Border Adjustment Mechanism. Which EU institutions communicated with third coun-tries? What channels did they use? Who was taking the …
Analysis: Low carbon hydrogen in the European Union – A coherent regulatory framework
Renewable hydrogen is necessary for the decarbonization of sectors that are difficult to electrify, such as industry and aviation, and as a storage medium for surplus electricity from renewable sources. In this context, the following analysis of the EU …
Dossier: Climate-damaging subsidies correspond to negative CO2 prices
The aim of this dossier is to convert the significant level of subsidies in the transport sector into negative CO2 prices; this contributes to the political discourse by categorising the climate policy significance of the subsidies. The implicit negative …
Brief: Making price signals comparable – subsidies as negative CO2 prices
Calculations in a new Ariadne study show that subsidies in the transport sector sometimes correspond to negative CO2 prices of between -€70 and -€690 per tonne of CO2. Germany’s current tax and levy system in the transport sector is …
We are Ariadne
The people behind Ariadne
Dr. Hans Christian Gils
Deutsches Zentrum für Luft- und Raumfahrt – Institut für Vernetzte Energiesysteme
Annika Gillich
Universität Stuttgart – Institut für Energiewirtschaft und Rationelle Energieanwendung
