How do geopolitical factors work in the gas policy of Europe?

As the project of South Stream failed, Russia's Gazprom declared a new route of the gas pipeline. The new project of the Turkish Stream requires transportation of Russian gas through the Black Sea to Turkey and then to the Greek border. According to Gazprom, gas supplies to Europe will start in December 2016. Meanwhile, the rejection of South Stream damaged not only European industry, but also all economic spheres. Alexander Kurdin, the head of the Energy Strategic Research Department of the Analytical Center under the Russian government, comments on the situation.