July 21, 2026 | Global Equity
July 21, 2026 | Global Equity
The industrial sector is entering a new phase of structural demand driven by a global grid upgrade cycle, rapidly accelerating electricity demand from AI infrastructure, and an increasingly constrained power equipment supply.
What was once viewed as a cyclical infrastructure theme increasingly appears to be a multiyear investment cycle, with significant implications for industrial companies tied to electrical equipment, transmission networks, and power infrastructure.
At the center of this shift is a growing mismatch between electricity demand and the ability of existing grids to support it. Aging infrastructure, renewable energy integration, electric vehicle adoption, and the rapid expansion of AI data centers are all placing new pressure on electrical systems that were not designed for today’s power intensity.
The result is a broad-based infrastructure buildout that we believe may create durable demand for industrial companies supplying the equipment needed to modernize and expand the grid.
Large portions of transmission and distribution infrastructure across the United States, Europe, and parts of Asia are now decades old and approaching the end of their useful lives. Utilities are increasingly moving beyond incremental maintenance toward full-scale replacement programs.
At the same time, renewable energy adoption is changing how electricity moves across power systems. Wind and solar generation are often geographically dispersed and intermittent, requiring substantial investment in long-distance transmission infrastructure, substations, and high-voltage equipment. Offshore wind projects, in particular, are increasing demand for complex transformer systems and grid interconnections.
AI may be accelerating the timeline significantly.
Transportation electrification is adding another layer of demand. The growth of electric vehicles and fleet electrification is increasing electricity consumption at the distribution level, requiring localized grid upgrades, new distribution transformers, and expanded charging infrastructure.
These trends alone would likely support a sustained infrastructure cycle. However, AI may be accelerating the timeline significantly.
The rapid expansion of hyperscale data centers and AI workloads is creating an unprecedented increase in electricity demand. AI data centers require substantially higher power density and reliability than traditional computing infrastructure, often necessitating dedicated substations and multiple high-capacity transformers per site.
Industry forecasts suggest U.S. electricity demand could grow roughly 4% annually through 2030, driven primarily by AI-related data center expansion. By comparison, electricity demand in the United States has historically grown closer to 0.6% annually since 2000.[1]
U.S. electricity demand could grow roughly 4% annually through 2030.
The challenge is that planned capacity additions currently appear insufficient to meet that growth trajectory. Existing expansion plans imply closer to 2% annual growth in supply capacity, creating the potential for a widening supply-demand gap.
That imbalance has significant implications. Expanding grid capacity requires transformers, switchgear, high-voltage cables, substations, turbines, and transmission infrastructure—all areas in which manufacturing capacity is already constrained.
One of the defining features of the current cycle is that many critical power components are difficult and time-consuming to manufacture.
Large power transformers, for example, are highly engineered products with long lead times, labor-intensive production processes, and limited global manufacturing capacity. As a result, many electrical equipment manufacturers currently maintain multiyear order backlogs and continue to benefit from strong pricing dynamics.
Lead times for transformers and related electrical equipment continue to rise, while capacity additions remain measured. Manufacturers have generally been disciplined in expanding production, allowing pricing power and margins to remain elevated.
In many respects, power infrastructure is becoming a critical bottleneck for broader industrial and AI-driven growth. Data centers cannot scale indefinitely without reliable access to electricity, and utilities cannot expand grids without the equipment required to connect new generation and transmission capacity.
This dynamic is increasingly pushing governments, utilities, and hyperscalers toward accelerated investment in electrical infrastructure.
While near-term volatility in energy prices, regulation, and supply constraints is likely to persist, the broader direction appears increasingly clear: global electricity systems require substantial expansion and modernization. We believe this is creating one of the most significant industrial investment cycles in decades.
A wide range of industrial companies could benefit from rising demand for electrical infrastructure and constrained supply conditions.
The electrification theme extends beyond utilities: a wide range of industrial companies could benefit from rising demand for electrical infrastructure and constrained supply conditions. Potential beneficiaries include power infrastructure leaders producing transformers, switchgear, and high-voltage equipment; companies tied to transmission and distribution buildouts; industrial suppliers supporting AI infrastructure, cooling systems, and energy-intensive compute; and capacity-constrained manufacturers benefiting from strong pricing and backlog growth.
Importantly, many of these businesses operate in concentrated markets with high barriers to entry, long customer qualification cycles, and limited near-term competitive capacity additions.
For industrial companies with scale, manufacturing capacity, technical expertise, and pricing power, that environment may create a multiyear opportunity set tied to one of the defining infrastructure themes of the next decade.
Of course, investors should remain mindful of risks. One key variable is the potential entry of lower-cost Chinese manufacturers into Western markets if geopolitical headwinds abate. China represents a significant share of global transformer and electrical equipment manufacturing capacity and could potentially ease supply bottlenecks if regulatory and political barriers soften. Increased Chinese participation could pressure pricing power and margins for incumbent Western suppliers.
Bryan Shea is a research analyst on William Blair's global equity team.
Benjamin Loss, CFA, is a research analyst on William Blair's global equity team.
[1] Sources: William Blair research and estimates, as of June 2026. Projections based on EIA filed, announced, and planned project data.
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