The power of eternal ice: electricity from glacier waterCase Study: power supply for greenland, research station
In Greenland, Lloyd Dynamowerke installed special generators that produce energy in underground tunnel systems for research stations. There are still questions that even Google does not know the answer to. For example, if you want to calculate the route between the two Greenlandic locations of Ilulissat and Sisimiut, only a helpless “We could not calculate the directions” appears as an answer. This may be due to the fact that Ilulissat and Sisimiut are among the most remote places in the world where any type of economic activity is carried out to a significant extent. However, some people travel to the west coast of Greenland to explore the country – particularly because of the natural resources that lie hidden there. These scientists require significant amounts of energy to operate their stations and to penetrate the layers of soil that lie beneath the eternal ice. The power supply is now secured with special solutions from Lloyd Dynamowerke GmbH & Co. KG (LDW): in 2011 and 2012, two hydroelectric generators were installed in Sisimiut and three more were installed in Ilulissat. The requirements for the project are exceptionally high. Since they are underground power plants, the machines need to perform at their best under difficult conditions. They must be able to start on their own without an external electricity supply and they had to be transported through a narrow tunnel system before LDW staff could assemble and then commission them on-site. A special feature of the permanent magnet generators is the efficiency: it amounts to 98.26% at cos phi 1. The LDW machines are designed to be in operation for at least 50 to 60 years. The supply of research stations in Ilulissat and Sisimiut is therefore secured for the foreseeable future.