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The great AI infrastructure buildout: impact on power and commodity markets

Reported by Marex
Apr 27, 2026· 3 min read
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Key Takeaways
  • • Structural delivery gap between announced and actual AI infrastructure capacity: Research by Marex and Oxford's Smith School identifies multi-year delays across grid connection, equipment supply, and permitting, with wait times ranging from 2–3 years in favorable regions to 7+ years in constrained areas, indicating the buildout will be "lumpy and delayed," not exponential.
  • • Commodity markets risk near-term overpricing followed by correction: Copper, transformer steel, and high-voltage equipment are currently pricing announced capacity rather than realistic delivery timelines, creating vulnerability to downside repricing as execution delays become evident.
  • • Energy markets face volatility and localized price spikes, not smooth wholesale price expansion: While AI data centers have not yet moved average wholesale power prices, they are intensifying regional price volatility and driving companies toward off-grid, self-supplied generation that creates "shadow" gas demand invisible to standard utility reporting.
  • • Hyperscale execution challenges persist across permitting, grid interconnection, and equipment sourcing: A significant portion of announced capacity represents "bragawatts"—inflated or postponed projects—rather than deployable assets, reshaping expectations for near-term infrastructure buildout.
  • • Power demand trajectory substantially lags market expectations: Deloitte projects U.S. AI data center power demand could reach 123 gigawatts by 2035, but actual deployment will be constrained by physical infrastructure bottlenecks rather than capital availability.
Summary
The AI infrastructure boom is hitting a hard reality: physical constraints are dramatically slowing the deployment timeline that markets have priced in. New research from Marex and the University of Oxford's Smith School reveals a structural delivery gap between announced data center capacity and what is actually being constructed, with significant implications for power markets, commodity demand, and the timing of infrastructure monetization.

The research identifies three critical bottlenecks slowing deployment: grid connection delays, equipment supply constraints, and permitting backlogs. Wait times for project completion vary dramatically by region, ranging from 2–3 years in favorable jurisdictions to over 7 years in areas with constrained infrastructure. This is not a temporary friction; the delays are structural and will result in a "lumpy" rollout rather than the smooth exponential ramp that consensus expects. A substantial share of publicly announced capacity represents what industry participants call "bragawatts"—projects that are either inflated or indefinitely postponed.

Commodity markets appear to be front-running reality, pricing copper, transformer steel, and high-voltage equipment based on announced capacity rather than realistic delivery schedules. This creates material downside risk as markets reckon with extended timelines and execution delays. The mismatch between bullish commodity positioning and actual infrastructure deployment creates a correction risk in the near term.

Energy markets are experiencing a bifurcated impact. While AI data centers have not yet moved average wholesale power prices at the national level, they are generating intense localized price spikes in grid-constrained regions and driving large operators toward off-grid, self-supplied generation. This shift creates "shadow" gas demand that does not appear in standard utility reporting, obscuring the true scale of energy consumption and complicating forecasting.

Institutional investors and infrastructure funds should recalibrate expectations around deployment timing and near-term commodity exposure. The window for outsized near-term returns in commodity-linked AI infrastructure plays may be narrowing as physical realities become evident, while longer-duration power and energy infrastructure plays may offer more attractive risk-adjusted returns once execution timelines stabilize.

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Sources

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Marex The great AI infrastructure buildout: impact on power and commodity markets