Chinese Sovereign Wealth Funds (SWFs) are new instruments of Chinese 'Go Global' strategy and the politics of maintaining raw materials and energy security. Europe has lured 60% of the total USD 27.3 billion invested by Chinese SWFs in the energy sector globally, which provokes the question as to how important SWF investments are in the political sense and what security concerns they bring. This paper is the first that presents a comprehensive picture of Chinese SWF investments in the European energy market and one of the very few papers about SWFs based on multiannual, comprehensive empirical data. The author argues that Chinese SWFs are different players on the energy market than private investors, could be potentially harmful for some European interests. By installing representatives on the company boards, China gains access to sensitive information that could be then transferred to Chinese competitors. Moreover, through its SWFs China could take control over energy companies or critical infrastructure and increase its political influence in European countries, making them more vulnerable to political pressure. Therefore, the European policy-makers should consider taking special steps to monitor and maybe limit Chinese SWFs expansion in the energy sector. (C) 2016 Elsevier Ltd. All rights reserved.