The Iran War Tests Taiwan’s Energy Resilience

Why It Matters

The disruption threatens Taiwan’s semiconductor output and regional economic stability, underscoring the need for diversified, secure energy sources.

Key Takeaways

• Taiwan imports 95% energy, 99% oil/gas
• Only 150 days oil reserves, 11 days LNG
• Natural gas share in power rose to 48% by 2025
• Summer demand could spike 40% versus winter
• Renewables and nuclear needed for long‑term energy security

Pulse Analysis

The current geopolitical flashpoint between the United States, Israel, and Iran has rippled through global energy markets, sharply curtailing shipments from the Strait of Hormuz. Taiwan, which satisfies 95% of its energy consumption through imports and relies on the Middle East for more than three‑quarters of its oil and natural‑gas supplies, finds its strategic buffers tested. While the government boasts roughly 150 days of oil reserves, its LNG stockpile covers merely 11 days, a stark contrast to regional peers such as South Korea and Japan. This narrow margin leaves the island vulnerable to supply shocks that could reverberate through its high‑value manufacturing sector.

A decade‑long pivot toward natural gas has reshaped Taiwan’s power mix, lifting gas‑fired generation from 17% in 2006 to nearly 48% in 2025. The shift, driven by policies to phase out coal and nuclear power, has inadvertently heightened exposure to external LNG disruptions. As summer approaches, electricity demand typically climbs 40% over winter levels, intensifying competition for alternative LNG cargoes from the United States, Australia, and Southeast Asia. With neighboring economies also scrambling for limited supplies, Taiwan may confront price spikes or, in a worst‑case scenario, temporary power rationing that would jeopardize semiconductor output and export revenues.

Long‑term resilience hinges on diversifying the energy portfolio beyond imported fossil fuels. Accelerating renewable installations—particularly offshore wind and solar—can offset rising demand while reducing carbon intensity. Simultaneously, restarting nuclear reactors offers a low‑carbon baseload that mitigates reliance on volatile LNG markets. Strategic investments in energy storage, grid modernization, and regional interconnections will further cushion the island against future geopolitical upheavals. By addressing these structural vulnerabilities now, Taiwan can safeguard its critical tech industry and reinforce broader supply‑chain stability across the Indo‑Pacific.