KUALA LUMPUR (AFX-ASIA) – Tenaga Nasional Bhd will buy two turbines worth RM720 million to increase the capacity of its Sultan Mahmud Kenyir power plant in Terengganu by 300 megawatts, Berita Harian reported, citing chairman Awang Adek Hussin. Mr Awang said the installation of the turbines, which is expected to be completed by end-2007, will…