The recent eruptions of Sinabung and Merapi have highlighted the destructive power of our volcanoes. These eruptions, however, have put up a smoke screen on the subterranean power of three other volcanoes, namely Sibayak, Sinabung’s neighbor in Karo district in North Sumatra; Rinjani, the highest volcano on Bali’s neighbor, Lombok; and Kelimutu with its tricolored lakes on the island of Flores. Geologists and electrical engineers have for decades explored the best ways to utilize the power of subterranean steam reserves near the feet of those volcanos. In the case of Sibayak, the Indonesian state-owned oil and gas mining company, Pertamina, has already produced 12 megawatts of electricity through a joint venture with an Indonesian private contractor, PT Dizamatra Powerindo, owned by Djan Faridz, the licence holder of the controversial Buddha Bar in the heart of Jakarta. The pow...