Analysts at Bernstein have poured cold water on three widely held beliefs about the relationship between data centre expansion and copper prices, in a research note published this week. The report challenges the narrative that the rapid growth of artificial intelligence and cloud computing will inevitably trigger a structural shortage of the red metal, a key component in electrical infrastructure.
The first misconception, according to Bernstein, is that data centres are the primary driver of future copper demand. While the build-out of server farms does require significant amounts of copper for power cables, transformers and earthing, the analysts point out that data centres account for only a small fraction of global copper consumption — roughly 1-2%. The bulk of demand still comes from traditional sectors such as construction, power grids and transport.
The second myth concerns the idea that the energy needs of AI will create a 'copper supercycle' akin to the commodity boom of the early 2000s. Bernstein argues that while AI-related electricity consumption is rising, much of the new capacity will come from renewable sources and improved grid efficiency, which could actually reduce the copper intensity per unit of energy delivered. The analysts also note that substitution — using aluminium or fibre optics in place of copper — is already underway in several applications.
Thirdly, the report takes aim at the assumption that copper supply constraints are insurmountable. Bernstein acknowledges that new mine development is slow and costly, but highlights that recycling rates for copper are improving and that existing mines have room to increase output through technological upgrades. The analysts caution against extrapolating short-term price spikes into a permanent deficit narrative.
For UK investors and pension funds with exposure to mining stocks or commodity-focused exchange-traded funds, the Bernstein analysis serves as a reminder to look beyond the headlines. While copper prices have rallied in recent months on the back of AI enthusiasm, the underlying supply-demand balance may be less tight than some market participants anticipate. The FTSE 100-listed miners such as Antofagasta and Glencore have seen their share prices move in tandem with copper sentiment, but Bernstein's note suggests that a reality check may be warranted.