Question: What is the name of this Australian generation, electricity and gas retailing private company that is owned by Hong Kong-based Chow Tai Fook Enterprises and operated and maintained the Northern Power Station in Port Augusta? 
Sentence (from "Alinta Energy"): Alinta Energy has an owned and contracted generation portfolio of up to 1,957 MW, approximately 800,000 combined electricity and gas retail customers and around 450 employees across Australia and New Zealand.
Relevant evidence: No