(EnergyAsia, May 3) — Malaysian power company Tenaga Nasional Bhd (TNB) could gain as much as RM200 million from next year as a result of savings from a diesel subsidy and write-off of loans to its unit, Sabah Electricity Sdn Bhd (SESB). (US$1=RM3.8).  According to the Star newspaper, the diesel subsidy and loans write-off by…