Here's an ironic twist: the technology we're building to save the planet might be making it harder to produce the materials we need to actually save the planet. The aluminum market is facing a peculiar squeeze, and artificial intelligence is partly to blame.

The problem comes down to electricity. Aluminum smelting is an incredibly energy-intensive process, which means these facilities live or die based on power costs. And right now, they're losing a bidding war they can't afford to win.

Michael Widmer, Head of Metals Research at Bank of America Global, laid out the core issue bluntly: "With all the discussion on tariffs and who is going to invest, it often comes down to just one metric, which is the power cost, and the unfortunate reality is that, anecdotally, I think data centres and AI can pay more than three times as much for power than a smelter would want to pay."

That's not a small competitive disadvantage. That's an existential problem.

The Incredible Shrinking Smelter Base

The U.S. aluminum industry has been hollowed out over the past quarter century. In 1998, the country had 20 primary aluminum smelting facilities. Today, there are five. Just five. Alcoa Corporation (AA) and Century Aluminum Company (CENX) are among the handful of operators still standing, and their position grows more precarious as uncertainty over tariffs distorts trade flows and pushes physical premiums higher.

Building new capacity requires cheap, abundant energy. But if that energy needs to come from low-carbon sources (as it increasingly must), the economics become even trickier. According to Bank of America's latest metals outlook, this creates a difficult circle to square.

Widmer noted that while the bank isn't quite as bullish on aluminum as it is on copper, it still expects prices to climb above $3,000 per ton next year. That's a significant move, driven not by surging demand alone but by supply constraints that are becoming structural.

China's Production Cap Changes Everything

The U.S. story is just one piece of a broader global tightening. China, which has long dominated global aluminum supply, is now constrained by a government-imposed cap on primary aluminum production. With that ceiling effectively fixed and domestic consumption still expanding, China can't simply add new capacity to meet global needs the way it once did.

This cap limits incremental supply at exactly the wrong time. The International Aluminium Institute expects aluminum demand to increase by 40% by 2030, driven largely by clean technology applications. Electric vehicles, solar panels, and wind turbines all require substantial amounts of aluminum. So we're heading into a period where demand is accelerating while supply growth is artificially constrained.

When you combine China's production limits with disruptions elsewhere, buyers face increasingly intense competition for available tons on the open market. Prices rise not only because of immediate scarcity but because traders anticipate lasting constraints built into policy.

Europe's Mozambique Problem

European markets face their own supply headache. South32 Ltd. (SOUHY)'s Mozal smelter in Mozambique is facing a critical juncture. If the facility can't secure sufficient and affordable electricity by March 2026, it could shut down entirely, taking roughly 10% of Europe's aluminum supply with it.

Operational and power-related issues have created an urgent timeline. Losing Mozal would tighten an already strained market and force European buyers to compete even harder for imports.

The Economics of Staying Open

ING Research now anticipates material deficits ahead as slower global production growth collides with resilient demand. Their price target for 2026 sits at $2,900 per ton, reflecting the fundamental tension in the market.

The economics are straightforward but brutal. Electricity accounts for nearly half of aluminum production costs. ING notes that a competitive smelter needs a 10 to 20-year contract with electricity costs around $40 per megawatt-hour. Yet tech companies building data centers are currently paying as much as $115/MWh.

When grids strain under surging demand, particularly from AI data centers with their voracious appetite for computing power, aluminum smelters simply get priced out. And once these facilities curtail operations or shut down, they seldom restart quickly. The process of ramping a smelter back up is complex and expensive, which means temporary shutdowns often become permanent ones.

This creates a structural tightening in the market. Each facility that goes offline represents capacity that won't easily return, even if prices rise substantially. The result is a supply base that shrinks faster than it can rebuild, supporting higher prices for years to come.

So here we are: AI needs massive amounts of electricity, aluminum production needs massive amounts of electricity, and there isn't enough cheap electricity to go around. One side can afford to pay more, and it's not the one producing the metal we need for clean energy infrastructure. It's a strange circular problem, and the market is still figuring out how it resolves.