KEY POINTS
  • John Ng started his career as a boiler engineer more than 35 years ago and is now CEO of power company YTL PowerSeraya.
  • The electricity firm uses gas in its power plant, which means emissions are reduced, and is expanding into renewable energy.
  • The firm's retail arm, Geneco, offers solar power installation and green energy plans.

Power company chief executive John Ng says he's always had green energy on his mind, ever since he started his career as a boiler engineer more than 35 years ago.

"I joined the power industry in 1985 … As a boiler engineer, we are supposed to make sure that the boiler is run at the most efficient manner," he told CNBC's "Managing Asia: Sustainable Future."