Articles for "Energy supply"

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Energy | 29. December 2010 | posted by Dorothee Bürkle | 2 Comments

'The Future of Energy' Year of Science: A different question every week, 1 answer and 150 comments

During 'The Future of Energy' Year of Science, DLR prepared one question each week on the topic of energy, answered by the science journalist, Jan Oliver Löfken. Users were invited to post their questions and comments on the blog, and we responded as they came in – we received a total of 150 contributions. Read 51 posts on our Energy Blog and see how researchers want to safeguard our energy supply in the future and what policies are being put in place for this in the world of politics. read more

Energy | 27. December 2010 | posted by Jan Oliver Löfken | 2 Comments

Energy question of the week: Will our appetite for energy continue to increase?

Our energy demand can be split into three main areas: electricity, heating, and fuel for mobility. In Germany, every person needs about 6000 watts of power to maintain his or her affluent, mobile way of life. Americans use almost twice that amount. Compare that with people in developing countries, like Chad, who only have 11 watts at their disposal. Is there a need for more and more energy? read more

Energy | 20. December 2010 | posted by Jan Oliver Löfken

Energy question of the week: How will energy provision change over the next few decades?

Several studies forecast that by 2050, it will be possible for Germany to obtain a high proportion of its energy from renewable sources. DLR also has significant involvement in the expansion of wind, hydroelectric and solar power stations. But what specific changes can be anticipated here? The DLR Executive Board Member responsible for Energy and Transport research, Ulrich Wagner, provides insight into future prospects. read more

Energy | 22. November 2010 | posted by Jan Oliver Löfken

Energy question of the week: What is the EU's strategy for securing energy supply for the future?

20-20-20. The European Union's energy and climate policies have revolved around these figures for years. By the year 2020, 20 percent of our energy will come from renewable sources, reducing greenhouse gases by at least 20 percent and increasing energy efficiency by 20 Percent. All 27 member states are required to achieve these objectives. But now, Energy Commissioner Günther Oettinger, has put forward an energy strategy for the entire EU. What are the most important plans for the future of energy supplies? read more

Energy | 11. October 2010 | posted by Jan Oliver Löfken | 4 Comments

Energy question of the week: Why is energy storage so important?

Whether driving a car, switching on a light, or turning up the heating – we take it for granted that there'll be sufficient energy for us to use at that very moment. But this only works if two basics are in place. Firstly, energy needs to be transported quickly and reliably to the consumer in the required form. Second, energy storage guarantees straightforward access and acts as an 'energy buffer' to fill the gaps in distribution. So, what kinds of storage do we get our everyday energy from? read more

Energy | 04. October 2010 | posted by Jan Oliver Löfken | 6 Comments

Energy question of the week: Is complete self-sufficiency possible with decentralised power stations?

Nearly 80 percent of the electricity used in Europe comes from central power plants to the consumer via the electrical grid. As the popularity of renewable power sources has risen, consumer awareness of the importance of decentralised power production has also grown. The trend for decentralised and intelligent electricity production enjoys further support from projects for networked thermal power stations. Does this technology have the potential to provide an all-inclusive power supply? read more

Energy | 13. September 2010 | posted by Jan Oliver Löfken | 2 Comments

Energy question of the week: What part does natural gas play in meeting Germany’s energy requirements?

Whether used for heating, as a vehicle fuel or for power generation in gigantic turbines, natural gas plays a central role in Germany’s national energy supply. With consumption at 100 billion cubic metres a year, its use – and also importation – has almost doubled since 1970; and this trend is still growing. But does such a development make sense? read more

Energy | 30. August 2010 | posted by Jan Oliver Löfken | 1 Comment

Energy question of the week: Can the greenhouse gas carbon dioxide be stored safely underground?

Coal-fired power stations release more carbon dioxide per kWh than any other fossil fuel facility, and Germany has a large number of just this sort of power station. It is estimated that around 40 billion tons of coal are stored in potential open cast deposits in Lusatia and the Lower Rhine Basin. That makes up 14 percent of world reserves. The question is, can the carbon dioxide emissions be captured and stored underground? read more