U.S. Data Centers Will Face 32-Gigawatt Power Shortfall

Grid capacity constraints from 2026 to 2028 threaten to delay the scaling of massive AI infrastructure.

Updated on Oct. 7, 2026 in Data Centers

Isometric editorial illustration of a high-voltage transformer connected to a large data center structure, representing national energy infrastructure constraints. — U.S. data centers face a projected 32-gigawatt power shortfall through 2028, threatening to delay the expansion of large-scale artificial intelligence infrastructure across the country. AI Illustration. Upload story photo >

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Will rising demand from data centers cause electricity shortages for homes and businesses by 2028?

Between 2026 and 2028, U.S. data centers will face a projected electricity supply shortfall of 32 gigawatts. This gap represents 34 percent of the total power required to support planned computing infrastructure.

Why it matters

The rapid expansion of artificial intelligence infrastructure is currently outpacing the capacity of regional electrical grids. This energy scarcity threatens to delay the deployment of memory, optical, and power-management hardware.

The 32-gigawatt shortfall is expected despite planned additions of 19 gigawatts of gas-turbine capacity and 6 gigawatts of power from Bloom Energy fuel cells. These supply additions remain insufficient to meet the total power demand for planned data centers.

The players

Oracle

A major cloud infrastructure provider currently developing the 1.3-gigawatt Project Lighthouse facility in Wisconsin.

Bloom Energy

A developer of solid-oxide fuel cell technology projected to provide 6 gigawatts of electrical capacity to the grid.

Nvidia

The leading designer of graphics processing units and AI-accelerator hardware used in data centers.

Broadcom

A designer and manufacturer of networking, optical, and custom silicon components essential for high-performance computing.

The details

Insufficient electrical supply prevents installed artificial intelligence servers from generating the necessary computing capacity and revenue. Data-center projects are further complicated by regional permitting requirements and ongoing geopolitical constraints on the global supply chain. For example, Oracle's 1.3-gigawatt Project Lighthouse in Wisconsin faces potential delays in reaching full-power operation.

2026-2028: Period of the projected 32-gigawatt electricity supply shortfall.
2027: Year for which Nvidia and Broadcom earnings are expected to remain unaffected.
October 2028: Earliest potential date for Project Lighthouse to reach full-power operation.
Spring 2029: The later estimated date for potential delays at Project Lighthouse.

The Tech Race

The projected power deficit highlights a growing bottleneck that could force a recalibration of large-scale infrastructure roadmaps. This constraint follows the established trend of data-center growth placing unprecedented loads on regional power grids.

The power shortage may delay the arrival of high-performance AI services that rely on massive, localized computing clusters. While major hardware firms like Nvidia and Broadcom are not expected to see material financial impacts in 2027, large-scale deployments like Project Lighthouse remain sensitive to energy availability.

The takeaway

Energy constraints have shifted from a secondary consideration to a primary bottleneck for large-scale computing growth. Readers should monitor the 2027 performance of silicon providers and updates on the 1.3-gigawatt Project Lighthouse commissioning schedule.