The core objective of this paper is to analyse the impact of changes in fuel intensity and car size on energy demand of passenger cars in EU-15 countries. Of special relevance in this context is how the rebound effect due to the change in car fuel intensity and car size (average engine power)...

A forced use of renewable energy sources (RES) is necessary to reduce greenhouse gas emissions significantly. Among RES biomass-based resources play a specific role regarding their CO2-reduction potentials, their energetic potentials and their overall costs for different derived energy carriers....

In the early 2000s high expectations existed regarding the potential contribution of biofuels to the reduction of greenhouse gas emissions and substitution of fossil fuels in transport. In recent years sobering judgments prevailed. The major barriers for a further expansion of biofuels are their...

The objective of this paper is to analyze the impact of changes in fuel prices and fuel intensity (i.e. liters of fuel used per 100kilometers) on overall fuel (gasoline and diesel) consumption and on the demand for vehicle km driven in car passenger transport. This is important for deriving...

Virtually all goods and services that characterize modern societies' welfare depend on the provision of commercial energy. The core objective of this paper is to identify necessary changes in trends for achieving a transition towards more sustainable energy systems and development paths. The...

Sustainable Energy Access for Sustainable Communities – Introduction by a Social Scientist -- Local Dimensions of Sustainable Energy Governance: Case Study -- Can Municipalities Lead the Energy Transition? On Available Policy, Competences and Requirements for Action -- Local Action for Energy...

Rapidly growing fossil energy consumption in the transport sector in the last two centuries caused problems such as increasing greenhouse gas emissions, growing energy dependency and supply insecurity. One approach to solve these problems could be to increase the use of biofuels.

Fuels based on renewable energy sources (RES) such as a variety of first and second generation biofuels as well as electricity and hydrogen from RES, are considered an important means of coping with the environmental problems of transport. The objective of this paper is to investigate the...

The discussion on the promotion of biofuels is ambiguous: on the one hand benefits like reduction of greenhouse gas emissions and increase of energy supply security are expected, on the other hand low effectiveness with respect to reducing greenhouse gas emissions and high costs are being...