Some reports have suggested that employers can’t fill job openings in some places because they can’t entice workers to move. Workers won’t move, so the story goes, when doing so will mean losing money on their homes, and this is the case for many homeowners since the housing crash. But new...

An approach to energy systems modelling is presented. It employs a mixture of non-linear programming techniques considered suitable for the particular structure of energy models, in order to overcome the problems encountered in optimisation with a non-trivial objective function topology, e.g....

In 1996, the Danish government launched an ambitious energy plan, Energy 21, describing a way to develop the energy sector in a more sustainable direction. Wind power plays an important role in the plan, and as a consequence there will be a very high penetration of wind energy in the electricity...

In 1996, the Danish government launched an ambitious energy plan, Energy 21, describing a way to develop the energy sector in a more sustainable direction. Wind power plays an important role in the plan, and as a consequence there will be a very high penetration of wind energy in the electricity...

The scenario method is used to investigate whether or not an energy supply system entirely based upon renewable energy sources (solar radiation, wind, biomass, environmental heat and hydro) can supply the energy globally required by the mid-21st century. A geographical information system (GIS)...

We discuss the role played by interregional power transmission on the basis of recent scenario work. In a project dealing with long-term planning for energy efficiency and renewable energy in Europe [described thoroughly in 1-4], we modelled a scenario for the present 15 EU countries' energy...