In 2015, Germany spent around 66 billion euros on energy imports, equivalent to seven percent of its expenses for imports. Germany imports two thirds of its energy, including uranium. The Oeko-Institute estimates that renewable energy offset 8.16 billion euros in energy imports in 2015 alone. Most of that renewable energy was electricity and heat, however, with domestic renewable motor fuel production making up only around five percent of the pie.
Energy efficiency can also significantly help reduce energy imports. A study conducted by the IFEU Institute of Heidelberg, in cooperation with the Institute of Economic Structures Research, found that a scenario with more efficient energy consumption would reduce energy imports by four billion euros in 2030 compared to a scenario without these efficiency gains – and that figure would continue to rise. In this respect, the energy transition also increases energy security. The conflict with Russia and Ukraine has also highlighted the importance of energy security. In 2014, a study conducted by the Fraunhofer IWES found that the growth of renewables could offset the equivalent of Germany's current gas consumption from Russia by 2030.
In 2013, Germany spent 90 billion euros on energy imports. As stated above, that figure had fallen to 66 billion just two years later. However, this drop is not primarily due to lower demand for foreign energy, but rather lower fossil fuel prices. For instance, a barrel of oil cost around 100 US$ in 2013, whereas the price hovered cloaser to 50 US$ in 2015.