Taiwan’s Electricity and Semiconductors: The Power Bill Behind the Sacred Mountain

30-second overview: Semiconductors are not produced only by engineers, fabs, and advanced equipment. They also depend on a stable power grid. The stronger AI chips become, the more electricity wafer fabrication, advanced packaging, server testing, and data centers need. Taiwan gains global supply-chain leverage from this position, but it also places electricity prices, fuel imports, renewable energy, carbon emissions, and blackout risks on the same bill.

25.55 billion kilowatt-hours.

That is TSMC’s 2024 electricity use as reported by the technology outlet Tom’s Hardware. The article was originally about how TSMC lowered peak power consumption for EUV lithography tools, noting that EUV tool energy savings are expected to save 190 million kilowatt-hours by 2030. But the same article placed that saving beside TSMC’s annual electricity-use scale of 25.55 billion kilowatt-hours.¹

When those two numbers sit next to each other, the picture changes. When people say “the sacred mountain protecting the nation,” they usually think of TSMC, advanced processes, stock prices, exports, and diplomatic leverage. 25.55 billion kilowatt-hours pulls that same mountain back to the ground: back to the grid, fuel, power plants, renewable-energy contracts, and every bill.

An advanced fab cannot lose power. EUV lithography machines, clean-room air conditioning, chemical supply, exhaust treatment, ultrapure-water systems, metrology equipment, data centers, and backup systems all need stable operation. Whether chips can enter mass production ultimately also depends on whether electricity can be supplied reliably.

That is why semiconductor electricity use should not simply be written as “TSMC uses a lot of power.”

The more precise questions are: when Taiwan takes on global demand for AI chips and advanced manufacturing, who provides that stable power? Who bears the pressure of fuel imports and carbon emissions? Who pays when electricity prices adjust? Who carries the risk when blackouts or grid instability occur?

Maanshan Nuclear Power Plant in Hengchun, Pingtung. AI and semiconductor electricity demand has pulled debates over nuclear power, gas, renewable energy, and grid resilience back into public discussion. Photo: M. Weitzel. CC BY-SA 3.0 via Wikimedia Commons.

AI Demand Eventually Returns to the Meter

Generative AI looks like a cloud service, but in reality it is machines computing.

An AI chip, from design to deployment, passes through wafer fabrication, advanced packaging, testing, motherboards, power, cooling, racks, and data centers. Every segment needs electricity. Front-end manufacturing needs electricity because process equipment and clean environments cannot be interrupted. Back-end packaging needs electricity because integrating chips and memory is becoming more complex. AI servers need electricity because GPUs and accelerators turn large amounts of power into computation, and also into heat.

So the AI supply chain is not only the abstract word “compute.” Compute has electricity bills, power grids, gas-fired generators, renewable-energy procurement, and carbon emissions.

The meaning of the opening number, 25.55 billion kilowatt-hours, is not to shock readers. It reminds us that the advantage of advanced processes rests on huge and continuous energy input. EUV tools can become more efficient; clean rooms can be optimized; fab-facility systems can be tuned. But as long as AI demand keeps pushing capacity upward, aggregate pressure will not automatically disappear because one piece of equipment becomes more energy-efficient.

This is also where the AI era differs from earlier electronics manufacturing. In the past, when people talked about Taiwan manufacturing, they often talked about factory efficiency, supplier density, engineering culture, and delivery speed. Now another question has to be added: can Taiwan stably connect global compute demand to its own power grid?

If the answer is yes, electricity becomes part of Taiwan’s supply-chain credibility. If the answer begins to waver, foreign customers will put manufacturing location, renewable-energy access, blackout risk, and geopolitics into the same spreadsheet.

Stability Matters More Than Cheapness

When most people talk about electricity, they first think of price. For a fab, however, stability may matter even more than the simple electricity rate.

Many steps in wafer fabrication must proceed continuously inside highly controlled environments. Voltage fluctuation, brief outages, and unstable power quality can stop equipment, scrap products, or disrupt production schedules. For an ordinary household, a few minutes without power is an inconvenience. For an advanced fab, a few minutes may mean a batch of wafers, a section of yield, or even customer trust.

This is one of the most easily overlooked points in supply-chain bargaining. Foreign customers need Taiwan because Taiwan can deliver chips consistently, stably, and on time. Stable electricity therefore becomes part of Taiwan’s credibility.

Conversely, when international customers and governments evaluate whether to move part of manufacturing to the United States, Japan, or Europe, electricity also enters the calculation. Geopolitical risk is not the only force behind overseas manufacturing. Energy supply, electricity-price structure, renewable-energy access, and grid resilience all matter.

There is a subtle point here. Part of Taiwan’s past competitiveness came from stable and relatively affordable electricity. But when energy transition, fuel prices, Taipower’s finances, industrial electricity pricing, and decarbonization pressure all rise at once, that foundation can no longer be taken for granted.

The semiconductor industry wants electricity that is cheap, stable, low-carbon, and expandable. The problem is that these four conditions are difficult to satisfy at the same time. Cheap power may lower corporate costs but push more burden onto Taipower or the public. Stable power may require reserve capacity, gas-fired generation, or storage. Low-carbon power requires renewable energy, nuclear power, or other low-carbon solutions. Expandability involves land, power grids, ports, receiving terminals, and local acceptance.

So semiconductor electricity is an engineering, financial, and political issue at the same time.

Green Power Is Becoming an Order Condition

Semiconductor electricity use also faces another layer of pressure: customers’ carbon-reduction commitments.

Apple, NVIDIA, cloud giants, and global brands all face supply-chain emissions pressure. They do not only ask whether TSMC can make a chip. They also look at the power source behind chip production. When customers commit to net zero or RE100, a supplier’s electricity is no longer merely an internal cost; it becomes part of the customer’s product carbon footprint.

This gives Taiwan’s semiconductor industry a double demand: expand capacity and obtain more low-carbon electricity. Expansion increases electricity use, while decarbonization requires the power structure to change. When both happen at once, the challenge cannot be solved by corporate energy-saving alone.

Tom’s Hardware, citing DigiTimes, reported that the Taiwan Semiconductor Industry Association had warned the government about the urgency of power stability and renewable-energy supply. The same report also noted that in 2024, renewable energy still made up a smaller share of Taiwan fab electricity use than the RE100 pathway would require.² This kind of report should not be read as mere corporate complaint. It belongs in the supply-chain context: if customers want low-carbon chips, Taiwan must have enough low-carbon electricity.

That is why “green power” in semiconductors is not a decorative slogan. It is gradually becoming an order condition, a financial condition, and a diplomatic condition.

Offshore wind farm off Miaoli. Customer demand for low-carbon supply chains connects fab electricity all the way to wind farms, grid connection, storage, and local communication. Image: Ministry of Economic Affairs, Republic of China, CC BY-SA 4.0 via Wikimedia Commons.

If Taiwan can provide a low-carbon and stable manufacturing environment, Taiwan’s irreplaceability becomes stronger. If Taiwan can offer high-density manufacturing but cannot keep up with customers’ carbon requirements, some orders may be pushed toward other regions, or Taiwanese companies may be asked to build overseas sites to access local low-carbon power.

Efficiency Gains Do Not Automatically Cancel Aggregate Growth

Companies of course work to save energy. EUV lithography machines, clean-room air conditioning, fab-facility systems, process equipment, and data centers all have room for efficiency improvements.

But efficiency improvement and aggregate pressure are different things.

If each piece of equipment uses less power but the number of tools, wafer capacity, advanced-packaging capacity, AI-server testing, and data-center demand increase faster, total electricity use can still rise. That is the AI supply-chain difficulty: technological progress often improves efficiency and creates even larger demand at the same time.

A study by Roussilhe and coauthors, using 16 Taiwanese electronic-component manufacturers as a sample, found that from 2015 to 2020, the sampled companies’ greenhouse-gas emissions, final energy and electricity use, and water use all increased with output, and it raised the risk of carbon lock-in.³ That reminder matters: industrial upgrading does not automatically reduce environmental burden.

In other words, Taiwan cannot only ask, “Has each wafer become more energy-efficient?” It also has to ask: after the whole industry expands, how will total power use, total carbon emissions, total fuel imports, and grid burden be handled?

This question does not disappear because Taiwan is important. Precisely because Taiwan is important, it needs to be faced directly.

Whose Bill Is the Power Bill?

Semiconductors bring exports, salaries, tax revenue, stock-market value, and international visibility. Those benefits are real.

But the electricity bill is real too.

Part of the bill is paid by companies, reflected in electricity payments, equipment investment, renewable-energy procurement, and energy management. Another part is borne by society, reflected in grid construction, electricity-pricing policy, fuel imports, air pollution and carbon emissions, power-plant siting, transmission lines, and local acceptance of energy facilities.

There is no simple answer here. If electricity prices are too low, industrial costs may be shifted onto the public or Taipower’s finances. If electricity prices rise too quickly, industrial competitiveness and household burdens may be affected. If renewable-energy expansion is too slow, corporate decarbonization pressure will rise. If it expands too quickly, it may collide with land, fisheries, landscape, and local-political disputes.

“The sacred mountain’s electricity bill” is therefore a public question: what energy mix will Taiwan use to support its place in the global supply chain?

The government sees energy security and industrial competitiveness. Companies see costs, delivery schedules, customer demands, and overseas-manufacturing options. People see electricity prices, air pollution, blackouts, local construction, and quality of life. Foreign customers see whether Taiwan can continue to supply reliably over the next decade while meeting low-carbon supply-chain requirements.

The same kilowatt-hour is different to different people. For a factory, it is capacity. For a household, it is a bill. For a government, it is energy policy. For a foreign customer, it is supply-chain risk.

Companies Can Buy Green Power, But Society Still Builds the System

Large semiconductor companies can sign power-purchase agreements, buy renewable-energy certificates, invest in energy-saving equipment, and ask suppliers to decarbonize with them. These practices are necessary, because international customers trace supply-chain emissions upward.

But companies buying green power does not automatically solve the social problem.

First, green power has to actually be generated. Offshore wind, solar photovoltaics, geothermal, biomass, and other low-carbon sources all need land, sea areas, grid connection, storage, maintenance, and local coordination. Companies can sign contracts to buy power, but the generation facilities and power grid still have to be carried by society as a whole.

Solar panels on the roof of Xihu Service Area. Before companies can buy green power, society has to build the generation, land-use, grid-connection, and maintenance systems. Photo: lienyuan lee. CC BY 3.0 via Wikimedia Commons.

Second, green power has a timing problem. Solar power is abundant in the daytime, but fabs still run at night. Wind power is abundant when wind is strong, but when wind is low other power sources or storage must fill the gap. Semiconductors need stable power every moment, not only enough green power on an annual accounting basis.

Third, green power has a distribution problem. If the richest and most powerful companies obtain low-carbon electricity first, what happens to other industries, small and medium enterprises, and households? If high-tech exporters can pass costs on to global customers while local residents carry grids, substations, wind farms, solar sites, and electricity-price adjustments, social trust becomes fragile.

Taiwan’s semiconductor green-power problem therefore cannot be solved only by corporate sustainability departments. Energy policy, electricity markets, local governance, and industrial transformation all have to keep up. Corporate purchasing power can push the market, but behind that market still lies public infrastructure.

AI Pulls the Nuclear Debate Back In

Taiwan’s electricity discussion can hardly avoid nuclear power.

After Taiwan’s last operating nuclear reactor was shut down in 2025, whether nuclear power should be extended was pulled back into public debate through a referendum. AP reported that while the 2025 referendum on extending the Maanshan plant received far more “yes” than “no” votes, it did not meet the threshold to pass; nuclear-power supporters argued that nuclear power could help lower electricity prices and support rising electricity demand from AI applications.⁴

The nuclear debate does not need to be flattened into a position statement here. What matters is this: AI and semiconductors have turned energy back into a question of national capability.

Supporters of nuclear power argue that Taiwan needs stable low-carbon electricity and cannot rely only on imported gas and growing renewable energy. Opponents argue that nuclear waste, earthquake risk, decommissioning costs, and local safety cannot be overridden by AI enthusiasm. Behind the two sides’ arguments, both are answering the same question: what kind of risk should Taiwan accept in exchange for its position in the global supply chain?

That question cannot be left only to TSMC or Taipower. It is a choice for society as a whole.

Supply-Chain Leverage Needs Infrastructure

Taiwan’s value in the semiconductor supply chain comes not only from TSMC, but from an entire engineering society: science parks, suppliers, engineers, packaging and testing, chemicals, logistics, water, power, and government coordination.

Electricity is the lowest layer of that engineering society.

When the world says “Taiwan is irreplaceable,” it is also relying on Taiwan’s power grid. When foreign governments encourage TSMC to build plants in the United States, Japan, and Germany, they are also trying to move part of the electricity bill onto their own soil. That in fact shows that Taiwan’s value is so high that other countries do not want all the risk concentrated on one island.

What Taiwan must now face is the harder institutional question: if semiconductors are Taiwan’s international leverage, what kind of energy system is Taiwan willing to use to maintain them?

A good answer will not simply be “build more power plants” or “buy more green power.” It also includes grid resilience, storage, demand response, industrial electricity pricing, energy-import security, local communication, renewable-energy grid connection, and how energy-intensive industries explain their costs and contributions to society.

Semiconductors make Taiwan needed by the world. Electricity reminds Taiwan that being needed is not free.

Further Reading

• AI Hardware Supply Chain — How Taiwan turns cloud demand into machines that can be shipped.
• Semiconductor Water Use and Taiwan’s Water Resources — How wafer fabrication enters reservoirs, drought, and reclaimed-water governance.
• AI Supply Chain Overseas Manufacturing — How overseas manufacturing ties supply chains to electricity and local infrastructure.
• Taiwan’s TSMC — How the pure-play foundry model became a global advanced-chip bottleneck.

Image Sources

• Exterior of Maanshan Nuclear Power Plant in Hengchun, Pingtung (hero / inline): Maanshan Nuclear Power Plant, Nan Wan — Photo: M. Weitzel, Wikimedia Commons, CC BY-SA 3.0. This article uses the cached version at public/article-images/nature/maanshan-nuclear-plant-nan-wan-2014.webp.
• Offshore wind farm off Miaoli: Hai Long offshore wind farm — Wikimedia Commons, CC BY-SA 4.0. This article uses the cached version at public/article-images/nature/hai-neng-offshore-wind-farm-2024.webp.
• Rooftop solar panels at Xihu Service Area: Xihu Service Area solar panels — Photo: lienyuan lee, Wikimedia Commons, CC BY 3.0. This article uses the cached version at public/article-images/nature/xihu-service-area-solar-2014.webp.

References