Emission Control Geothermal Operation; a Lesson Learn from Wayang Windu Geothermal Field

Abstract

Wayang Windu Geothermal operate two units with total capacity 227 MW electricity. Geothermal is renewable and environment friendly energy, however controlling any potential pollutant to environments must be strictly apply by maintain pollutant below regulation limit. Following changes of steam quality caused by new drilled wells, chemistry composition of steam produce will affect potential emission from operational process. Operator shall innovate their process to manage the emission, otherwise over limit may occurs. Managing Environment aspects at Wayang Windu performed by discipline team, management commitment combined with team work to achieve current performance. In Wayang Windu environment officer is not only one person who manages the environment. The multi discipline team with guidance by environment officer set agreed action how to mitigate potential environment aspect such as potential emission, waste management etc. and performing lesson learn for future improvement. Within fourteen years of its operational time of Unit-1 and five years operation Unit-2 have indicated an excellent performance of environmentally aspect also some continual improvement program apply referring of operation steps in geothermal field operation. This paper reviews the experience to manage emission pollutant from operational geothermal field and continual improvement process.