Tiwi Geothermal

Tiwi Field, Philippines

Initiated with the drilling of Naglagbong 1 in 1972, the Tiwi Geothermal Resource Development Project marked a significant advancement in renewable energy. Power generation began in 1979 and reached a peak capacity of 330 megawatts by 1982, making this facility the world’s largest liquid-dominated geothermal resource at the time. Challenges, such as pressure drawdown and resource decline, reduced this capacity to 234 megawatts in 2004–2005. Since 2009, Aboitiz Power Renewables Inc. has managed the power plants, with Philippine Geothermal Production Company supplying the steam. This project’s data offers valuable insights for future geothermal developments, showcasing the importance of sustainable resource management in the energy sector.

5. Startup and Operations