HERE is some overdue homework that the State Electricity Company (PLN) should have completed by now. In 1999, financial consultant Arthur Andersen, which was auditing PLN at the time, made an important recommendation: diesel-powered electricity generating plants had to be changed over and powered instead by gas.

The changeover, said Arthur Andersen, should already have been completed by the end of 2005. All these power plants had to be free of die