ENERGY Development Corp. (EDC) s expecting to reap additional revenues of P600 million next year on account of improved performance of its three geothermal assets, the 192.5-megawatt (MW) Palinpinon, 112.5-MW Tongonan, and 49.4-MW Nasulo geothermal plants.  EDC President Richard Tantoco said the optimization, reengineer and redesign of these plants would result in additional 10 MW, 20 MW, and 20 MW, respectively.  Read more here.