Ammonia and hydrogen carry great potential as carbon-free fuels with promising
applications in energy systems. Hydrogen, in particular, has been generating massive …

This paper analyses the potential of renewable fuels in different propulsion systems for the
maritime sector that can replace fossil fuels by 2030. First, a fuel cost analysis is performed …

Current climate targets require negative carbon dioxide (CO2) emissions. Direct air capture
is a promising negative emission technology, but energy and material demands lead to …

Meeting climate mitigation goals would require transformative changes in the transport
sector (high confidence). In 2019, direct greenhouse gas (GHG) emissions from the transport …

Transition and decarbonization of the energy sector require the utilisation of new
technologies and energy sources. Higher penetration of intermittent renewable energy …

Reducing the climate impacts of passenger cars has a high priority on the political agenda,
especially in the EU. However, there is disagreement on how this can best be achieved–with …

Electrofuels, fuels produced from electricity, water, and carbon or nitrogen, are of interest as
substitutes for fossil fuels in all energy and chemical sectors. This paper focuses on …

Alternative fuels are essential to enable the transition to a sustainable and environmentally
friendly energy supply. Synthetic fuels derived from renewable energies can act as energy …

Alternative carbon-neutral synthetic fuels are needed to decarbonize the transportation
sector, bridging the gap between batteries and biofuels. Herein, we analyze the economics …

Hydrogen can be produced from the decomposition of methane (also called pyrolysis). Many
studies assume that this process emits few greenhouse gas (GHG) because the reaction …