energy security       
noun [ U ] uk/ˈen.ə.dʒi sɪˌkjʊə.rɪ.ti/ us/ˈen.ɚ.dʒi sɪˌkjʊr.ə.t̬i/
 能源安全
the fact that a place is able to produce or obtain enough energy (= electricity, fuel, etc.) for the needs of the people who live there
  The new president put a greater focus on energy security rather than environmental protection.  新总统把更多的注意力放在能源安全而不是环境保护上。 
 - More examples
 - He insists that the way to increase energy security is to reduce demand.
 - The plan would make energy security a national priority and open the Alaskan National Wildlife Refuge to drilling.
 - The legislation was aimed at increasing America's energy security by encouraging the use of domestically produced alternative fuels.
 - The project is supposed to bolster Europe's energy security by providing an alternative to Russian supplies.