🔥 TSMC: AI Demand Faces Off Against Power and Tariff Variables - 2026.09.04

Well, well~ Onion here. The key issues surrounding TSMC are expanding beyond AI demand itself to production capacity, power, and U.S. policy. Reports say TSMC stated that if AI demand continues to grow, even building 20 fabs around the world may not be enough capacity ^[1]. Strong demand and the limits of supply are appearing on the same screen.

AI Demand Spills Over Into a Production Capacity Debate 🚀

TSMC reportedly assessed AI demand as being at a level seen for the first time in 30 years, with semiconductor equipment demand also rising sharply as a result ^[2]. This statement alone does not confirm the actual scale of expansion or future revenue results. Still, even if companies want to make AI semiconductors, they need enough production lines and equipment—a very practical issue that has emerged as a key variable going forward.

The market’s question here is simple: Is it about having plenty of orders, or being able to produce those orders on time? The bullish scenario—that whether capacity expansion can keep up with demand may determine TSMC’s next competitive landscape—is clearly still alive. However, a gap remains to be examined between the reported assessment and an actual increase in supply.

Without Power, Even Advanced Processes Stop ☕

Reports say Taiwan has moved to restart nuclear power plants in connection with power issues needed to operate TSMC. The story highlights tension between the country’s nuclear phase-out policy and semiconductor production infrastructure as an operational risk for TSMC ^[3].

This is quite an important point. No matter how strong AI demand is, factories need a stable power supply to operate. Power is the food of semiconductors, and when the food runs out, even advanced processes go hungry. Still, this report conveyed tension between policy and infrastructure; it did not confirm actual production disruptions or financial impact.

U.S. Tariff Policy Could Shake Up Production Site Choices 📈

MBC reported that the U.S. government had announced plans for a new policy linking semiconductor companies’ investment in the United States with tariffs. The report said measures were being discussed to offer tariff benefits for production in the United States while imposing high tariffs on semiconductors produced overseas ^[6].

For a company like TSMC, where policy variables surrounding production bases in multiple regions matter, this is news that makes investors consider production locations and cost structures together. However, the policy was reported as a proposal that has merely been announced, leaving its final details and scope of application as variables. One word—tariffs—can make the supply-chain spreadsheet quite complicated indeed.

Japan’s Local Ecosystem Is Also Growing

There were also reports that talent development is being pursued in Kumamoto, Japan, which attracted TSMC, including the establishment of a semiconductor undergraduate program ^[4]. This shows how TSMC’s expansion into Japan is leading to local education and semiconductor industry infrastructure.

There were also reports that domestic equipment company HK entered TSMC’s supply chain, raising expectations for expansion into global markets such as the United States and Japan ^[5]. However, this is news about the company’s entry into the supply chain; it does not confirm changes across TSMC’s entire supply chain or improved earnings.

On September 3, TSMC closed on the NYSE at $417.14, recording +0.40%. From the perspective of aggressive investors, the stories of AI demand and supply expansion may look attractive, but Onion believes the bullish scenario will become more solid when power, tariffs, and actual production capacity expansion are confirmed together. How production lines capable of handling AI orders, the power needed to run them, and production allocation aligned with U.S. policy will fit together remains the question.

📰 Reference News (5)

1

Taiwan’s TSMC: “Even Building 20 Fabs Worldwide Would Not Be Enough Amid Exploding AI Demand” - v.daum.net

v.daum.net · 2026.09.03

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3

“TSMC Can’t Operate Without Nuclear Power”… Taiwan, Which Called for a Nuclear Phase-Out, Restarts Plants After Backing Down - biz.heraldcorp.com

biz.heraldcorp.com · 2026.09.03

📰 View original

4

Kumamoto, Which Attracted TSMC, Establishes Semiconductor Program… Japan’s Semiconductor Industry Draws Global Heavyweights - Nate

네이트 · 2026.09.03

📰 View original

5

HK Enters TSMC Supply Chain… Expects Expansion into Global Markets Including the U.S. and Japan - Money Today - Money Today

머니투데이 · 2026.09.03

📰 View original

📺 Reference Videos (1)

6

YouTube

[World at This Hour] U.S. Announces New Semiconductor Tariffs… “Exemption if Made in the U.S.” (2026.09.03/News Today/MBC)

▶MBCNEWS·2026.09.02