Two of Australia's biggest energy companies are owned by Chinese investors, sparking national security fears as tensions ramp up with the communist superpower. Energy Australia, which has 1.7 million customers, is owned by the China Light and Power Company after being sold off by the NSW government for $1.4 billion in 2011. And Alinta Energy, which has 1.1 million customers, was sold by its private owners to Chow Tai Fook Enterprises for $4billion in 2017. Energy Australia, which has 1.7 million customers, is owned by the China Light and Power Company. Pictured: Energy Australia's wind farm at Cathedral Rocks, SA Although neither Energy Australia or Alinta distribute electricity, both are energy generators and retailers, owning crucial assets such as coal power stations, solar power fields and wind farms.