reservoir geotermal
[ gambar]
sumur produksi
pipa uap
pabrik pembangkit listrik
[ keterangan]
men opening steam valve on page 13: courtesy philippine national oil corporation; pipeline on page 13 and aerial view and inset of electrical generating plant on page 15: courtesy of national power corporation (philippines); production well and steam pipeline on page 15: courtesy of philippine geothermal, inc.