Operating electric grids with more intermittent renewable energy sources, wind and solar, do not come without challenges. As discussed in my previous blog, The Importance of Strong and Nice Neighbors, the experiences from Denmark and Germany illustrates the value of strong electric ties with neighboring systems.
Germany is by many seen as a leader in renewable energy development. Of the 615 TWh (1 TWh = 1 billion kWh)) produced in 2011 7.5 % was produced by wind and 3.1 % by solar (almost all is photovoltaic, PV). All renewable energy sources added up to 19.9 %. In 2012 the portion of renewable energy produced had grown to 22 %. On October 3 this year (2013) at noon wind and PV reached a record peak of 59.1 %.
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