TSMC could lose power amid US-Iran conflict, putting the chip market at risk

A new round of conflict between the US and Iran poses a risk not only to the oil market but to the entire global chip industry. If Taiwan faces fuel supply disruptions, the fabs of TSMC, the world's largest chipmaker, will be in the line of fire.

Why the risk has grown

The threat looks especially serious because Taiwan depends on energy imports from the Middle East. According to available information, more than a third of the island's power plants run on fuel that comes from that region. If military conflict disrupts logistics, the grid would quickly feel the shortage.

For semiconductor manufacturing this is critical: fabs cannot simply "pause" complex process runs without losses to equipment, wafer lots and delivery schedules.

The problem is that this is not a local player but a company through which a huge share of the world's advanced chip production passes. TSMC makes chips for smartphones, servers, artificial intelligence systems, networking equipment and cars. Any disruption at such capacity quickly becomes a global problem: delays first hit the contract manufacturer, then pass to electronics brands, cloud providers and industrial customers.

Where the weak spot is

The main vulnerability in this story is not the fabs themselves but the power supply. Even if production lines and staff are ready to work as normal, the semiconductor industry depends on a stable electricity supply without sharp dips or emergency outages. For modern fabs this is a basic requirement, because process precision is measured not in hours but in seconds and microns. Any unplanned stoppage hits not only current output but also product quality, line utilization and contractual commitments to customers.

If outages begin in the coming days, the consequences could unfold as a chain:

• reduction or postponement of some production cycles at Taiwanese fabs;
• delays in chip deliveries to makers of smartphones, laptops and data centers;
• a new increase in lead times for automotive electronics and industrial automation;
• pressure on component prices and growing nervousness across the supply chain.

This scenario would be most painful for segments that already have little spare capacity and depend heavily on one or two contract manufacturers. At such moments the market recalls the lessons of the pandemic: a shortage begins not when warehouses are empty, but when players in the chain stop being confident about the stability of the next few weeks. News of a possible outage alone is sometimes enough for companies to start revising purchases and speeding up backup orders.

What it means for the market

Even a short-term disruption in Taiwan can reach far beyond the island. TSMC is embedded in the global production system so deeply that its problems almost automatically become problems for customers in the US, Europe and Asia. It is also a sensitive factor for the AI market: demand for accelerators, server processors and related components is already high, and any instability at the largest manufacturer adds pressure.

Meanwhile, there is almost no one who can quickly replace Taiwanese volumes. Competitors have their own contracts, limited capacity and long production cycles. This means even a temporary dip could turn not into an instant collapse but into a gradual accumulation of delays. First it shows in shipping times, then in prices, release plans and investment decisions of companies tied to supplies of advanced chips. For many customers it is also a signal to urgently review inventories, suppliers and launch schedules for new devices.

What this means

The situation around Taiwan shows how fragile the global semiconductor chain remains. Even the risk of power outages at one key manufacturer like TSMC can once again turn geopolitics and energy into a direct cause of chip shortages for the whole market. The more production is concentrated in a few places, the harder any regional crisis echoes through global electronics.