Copper and AI Data Centers

Why do AI data centers need so much copper? A data center is an electrical machine. Power arrives from the grid at high voltage, is stepped down through transformers, distributed through switchgear and busbars, carried to racks by cable and converted for servers by power supplies, with backup systems and cooling loops alongside. Copper is the conductor at every one of those stages. The International Energy Agency projects that electricity consumption by data centers will more than double from around 415 TWh in 2024 to around 945 TWh by 2030, driven mainly by AI workloads, and each additional megawatt of capacity requires new copper-intensive electrical infrastructure inside and outside the building [1].

Where the copper is

1. Grid connection and substationsLarge data center campuses connect to the transmission or distribution grid through dedicated substations. Transformers, switchgear and the cabling between them are copper-intensive, and utilities must often reinforce lines to serve them.
2. Medium and low voltage distributionInside the facility, power is stepped down again and distributed through switchboards, busways and cable trays. Busbars, the solid conductors that carry very high currents between switchgear and distribution units, are typically copper because of its conductivity and compact cross-section.
3. Uninterruptible power and backupBattery systems and diesel or gas generators stand ready to carry the load during grid interruptions. Their windings, cabling and connections use copper.
4. Rack power and server hardwarePower distribution units, cabling to racks and the power supplies, connectors and printed circuit boards inside servers and network switches all use copper. AI racks draw far more power than conventional racks, which increases conductor sizes.
5. CoolingAI hardware increasingly requires liquid cooling. Cold plates, manifolds, heat exchangers and chiller components use copper for its thermal conductivity, and the pumps and fans that move coolant and air have copper windings.
6. Grounding and lightning protectionEvery facility is bonded to earth through copper grounding grids and conductors.

Estimates of copper per megawatt of data center capacity vary widely by design, density and cooling method, and Toto Finance does not publish an intensity figure of its own. The direction is not in dispute: higher rack density means higher current, and higher current means more copper per square metre of data hall.

How much electricity, and where

The IEA's Energy and AI report (April 2025) estimates that data centers consumed around 415 TWh of electricity in 2024, about 1.5 percent of global consumption, and projects that consumption will more than double to around 945 TWh by 2030 in its base case, slightly less than 3 percent of global electricity. The United States is expected to account for the largest share of that growth, with data centers on course to represent close to half of U.S. electricity demand growth to 2030 [1].

That growth does not happen in isolation. The same grids must also connect new renewable generation, electrify transport and heating and replace ageing infrastructure. The IEA's Global Critical Minerals Outlook 2026 records copper as the mineral with the largest absolute demand increase, adding about 7 million tonnes of annual demand by 2040, with electricity networks the largest driver [2].

Why this matters for supply

Copper supply is slow to respond. World mine production was about 23 million tonnes in 2025 [3]. Mines that started production between 2020 and 2023 took an average of 17.9 years from discovery to first output [4], and the IEA projects that supply from existing mines and announced projects will fall roughly 25 percent short of expected demand by 2035 [2]. Data center demand is arriving on a timescale of two to five years into a market whose supply responds on a timescale of two decades.

The United States, home to the largest concentration of data center construction, relied on imports for an estimated 57 percent of its refined copper consumption in 2025 and added copper to its List of Critical Minerals in November 2025 [3].

Implications for buyers and financiers

Data center developers, utilities and equipment manufacturers are becoming significant copper buyers with multi-year build programs and little tolerance for delay. Securing supply years ahead, rather than buying spot when a project reaches the electrical fit-out stage, is becoming a procurement question. Producers, meanwhile, need capital earlier to bring new supply forward.

Toto Finance's mine-to-market platform is designed to connect these two needs: industrial buyers can secure future copper supply as transferable digital claims and take physical delivery when the metal is due, while producers gain pre-production capital against verified reserves and scheduled output. Tokenized copper explains the mechanics and commodity financing the structures.