About the author

Jan Oliver Löfken

Energy journalist Jan Oliver Löfken writes among other things, for the Technologie Review, Wissenschaft aktuell, Tagesspiegel, Berliner Zeitung and P.M. Magazin on issues involving energy research and industry. For DLR, he answered the Energy question of the week during the Year of Energy 2010.

Currently, Jan Oliver Löfken writes in the DLR Energy blog on current topics related to the energy turnaround. He considers the contributions that research can make to a secure and affordable energy supply. The energy transition is a social challenge - a project of the century, as noted by Environment Minister Peter Altmeier. In the DLR Energy Blog, Jan Oliver Löfken discusses the outlook of the power supply and what can set the course for politics and the economy today.

Posts from Jan Oliver Löfken

Energy Blog | 17. May 2010 | 4 Comments

Energie-Frage der Woche: Wie viel Energie steckt im Innern der Erde?

99 Prozent der Erde sind heißer als 1000 Grad Celsius. Im Erdkern steigen die Temperaturen auf bis zu 7000 Grad an. Insgesamt summiert sich in unserem Planeten die Leistung auf Tausende Milliarden Watt. Seinen Ursprung hat dieses Reservoir zum einen in der Restwärme aus der Zeit der Erdentstehung vor etwa 4,6 Milliarden Jahren und zum anderen im fortlaufenden radioaktiven Zerfall langlebiger Isotope der Elemente Uran, Thorium und Kalium. Doch warum liegt trotz dieser gewaltigen Energiemengen der Anteil der Erdwärme am Energieverbrauch noch immer weit unter einem Prozent? read more

Energy Blog | 17. May 2010 | 4 Comments

Energy question of the week: How much energy is there in the Earth's interior?

Ninety-nine percent of the Earth is hotter than 1000 degrees Celsius. Inside Earth's core, temperatures rise to 7000 degrees. In total, the power within our planet amounts to thousands of billions of watts. This reservoir has its origins in the residual heat dating from the time the Earth was created, roughly 4.6 billion years ago, and in the ongoing radioactive decay of long-lived isotopes of uranium, thorium and potassium. The question we need to ask ourselves is why, given these gigantic amounts of energy, does geothermal power still only account for far less than one percent of our energy usage? read more