Geothermal Potential Estimated at 34 Gigawatts
Energy Development Corp. identifies significant growth capacity across Southeast Asia.
Updated on Oct. 5, 2026 in Energy
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Energy Development Corp. has estimated that Southeast Asia holds 34 gigawatts of untapped geothermal energy potential. This projection highlights a massive opportunity for the region, which already includes the world's third-largest geothermal producer, the Philippines.
Why it matters
Unlocking this clean energy requires massive upfront investment and specialized drilling, as exploratory efforts currently carry a 15% failure rate. Policy support and financial derisking tools are essential to overcoming these early-stage economic hurdles.
Southeast Asia possesses 48% of global geothermal potential, yet currently relies on limited installations like the 2 gigawatts in the Philippines. Exploratory drilling continues to face a 15% failure rate for new sites.
The players
Energy Development Corp.
This organization operates 1.48 gigawatts of installed geothermal capacity and represents 20% of the renewable energy capacity in the Philippines.
The details
The Philippines, which generated 6.4% of its power from geothermal sources by the end of 2025, utilizes facilities across Bicol, Leyte, Negros Island, and Mindanao. Energy Development Corp. contributes 1.48 gigawatts to this total, representing 20% of the nation's total renewable energy capacity.
Timeline
1976: Energy Development Corp. began developing geothermal facilities.
2000: Data collection on drilling failure rates began.
- 2025-12-31
Philippines geothermal power mix capacity was measured.
- 2026-10-05
Remarks were made at the ASEAN Energy Business Forum.
The Big Picture
The $170 million Philippine Geothermal Derisking Facility serves as a critical reference point for lowering financial risks in early exploration. This initiative sets a standard for how regional sovereign instruments can foster development in high-risk energy sectors.
Increasing regional geothermal capacity could stabilize power prices and improve grid reliability for residents across Southeast Asia. Success in these projects may lead to reduced reliance on fossil fuel imports and lower electricity costs in the long term.
The takeaway
Achieving the potential of 34 gigawatts requires cross-border collaboration to share subsurface expertise and drilling knowledge. By implementing risk-mitigation strategies, ASEAN countries can better navigate the high upfront costs of renewable exploration.
Further reading
For more on the regional energy outlook, visit Energy.
Live Poll
Is it a good time for your country to prioritize risky upfront investments in geothermal energy?
