Infrastructure has traditionally been viewed as one of the more defensive corners of private markets, characterized by essential services, stable cash flows, and hard-asset backing. Increasingly, however, investors are paying attention for a different reason: growth. Rising electricity demand, changing geopolitical realities, and the rapidly growing need for digital infrastructure are creating what many investors believe could become one of the largest investment opportunities across private markets.
According to Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen, three powerful secular trends are simultaneously driving demand for energy infrastructure and reshaping the opportunity set for infrastructure credit investors: artificial intelligence, electrification, and geopolitical realignment. “These three drivers are creating what we believe is a step-function change in the size of the addressable market,” argues Dimitrievich. “The amount of capital required runs into hundreds of billions annually and ultimately into trillions over time.”
“These three drivers are creating what we believe is a step-function change in the size of the addressable market. The amount of capital required runs into hundreds of billions annually and ultimately into trillions over time.”
Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen.
The first major driver is the rapid expansion of artificial intelligence infrastructure and computing capacity, which is creating unprecedented demand for electricity and power infrastructure. “There are a couple of key trends that are taking place, starting with the whole buildout of AI and compute capacity, or data processing if you will,” says Dimitrievich. Importantly, the investment requirements extend well beyond the data centers themselves. Supporting the expansion of artificial intelligence requires substantial investment across power generation, transmission, and broader energy infrastructure. “A ChatGPT search takes roughly ten times as much power as a Google search,” says Dimitrievich. “You start to extrapolate what that means into the economy, and it becomes a huge step-function change in energy demand.”
Alongside AI, Dimitrievich points to the broader electrification trend unfolding across economies. While policy drivers may differ across regions, the underlying trend remains consistent. “You’re seeing increased heat pump adoption, greater electrification in industrial applications, and increased electric vehicle transportation,” he says. “This is not necessarily about ESG targets or net-zero commitments. It is simply a secular trend that requires incremental investment in energy and power infrastructure.”
“You’re seeing increased heat pump adoption, greater electrification in industrial applications, and increased electric vehicle transportation. This is not necessarily about ESG targets or net-zero commitments. It is simply a secular trend that requires incremental investment in energy and power infrastructure.”
Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen.
The third major driver is the reshoring of manufacturing supply chains and the growing emphasis on energy security. According to Dimitrievich, decades of globalization optimized supply chains around the lowest-cost manufacturing locations, but national security concerns are increasingly influencing investment decisions. Russia’s invasion of Ukraine exposed Europe’s dependence on imported energy, while the recent conflict involving Iran has once again highlighted the vulnerability of global energy supply chains and critical transit routes such as the Strait of Hormuz. Together with rising geopolitical tensions between major economic blocs, these developments have reinforced the importance of resilient domestic infrastructure, energy security, and diversified sources of power. This shift requires significant incremental investments in industrial infrastructure, energy systems, and domestic manufacturing capacity.
As one example, Dimitrievich points to semiconductor manufacturing facilities currently being developed in the United States. One large facility under construction in New York is expected to require power consumption equivalent to the combined electricity usage of New Hampshire and Vermont. “Just one facility,” he notes. “And this dynamic is playing out in Europe as well.” Together, these trends are creating what Dimitrievich believes is a structural expansion in the addressable market for infrastructure investors.
Filling the Infrastructure Financing Gap
While infrastructure investment itself is not new, Dimitrievich argues that traditional financing channels alone are increasingly insufficient to support the growing opportunity set. Historically, infrastructure projects relied primarily on project finance markets, bank lending, and infrastructure equity, all of which remain important today. However, many infrastructure businesses no longer fit neatly into those traditional frameworks. “We often get asked why infrastructure credit is needed when project finance and infrastructure equity have existed for decades,” says Dimitrievich. “The answer is similar to what happened in private credit generally. Traditional financing markets worked very well historically, but the opportunity set has expanded significantly.”
According to Dimitrievich, infrastructure credit increasingly fills the financing gap between highly standardized project-finance structures and expensive equity capital. Many infrastructure businesses have proven technologies, established operations, and predictable cash flows, but require additional capital to support expansion. “The issue is that many infrastructure businesses sit somewhere in between,” explains Dimitrievich. “They have proven technologies, operating cash flows, and established businesses, but require additional capital to scale.”
“Banks continue to play an important role, but regulatory capital constraints limit how much balance sheet they can commit. As the opportunity set grows, additional sources of capital become necessary.”
Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen.
Infrastructure credit provides that growth capital while offering greater flexibility than traditional project finance and avoiding the dilution or higher cost associated with equity financing. At the same time, commercial banks face increasing regulatory capital constraints that limit how much balance-sheet capacity they can dedicate to a rapidly expanding market. “Banks continue to play an important role, but regulatory capital constraints limit how much balance sheet they can commit,” says Dimitrievich. “As the opportunity set grows, additional sources of capital become necessary.”
Defensive Characteristics Without Sacrificing Returns
Despite the strong growth narrative, Dimitrievich emphasizes that infrastructure credit retains many of the defensive characteristics traditionally associated with infrastructure investing. “Infrastructure is one of the more defensive investment strategies in this type of environment,” he argues. Unlike traditional corporate credit exposures, infrastructure assets typically provide essential services that remain necessary regardless of economic conditions. “People still need electricity, heating, and critical infrastructure during a recession.”
Infrastructure credit also benefits from hard-asset backing, inflation-linked cash flows, and long-term contracted revenues. “Many infrastructure investments have inflation protection embedded in their contracts,” explains Dimitrievich. “Because cash flows are often contracted, you generally have greater visibility that is less dependent on market conditions.”
“Infrastructure is one of the more defensive investment strategies in this type of environment. People still need electricity, heating, and critical infrastructure during a recession.”
Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen.
Importantly, Dimitrievich argues that investors are not necessarily sacrificing returns in exchange for greater defensiveness. For higher-yielding, non-investment-grade infrastructure credit opportunities, he suggests the segment has historically offered return potential that may compare favourably with certain core-plus infrastructure equity strategies. “We believe you can achieve similar return profiles to certain infrastructure equity strategies, but from a more defensive position in the capital structure,” he says. Unlike equity investors, infrastructure credit investors benefit from structural protections including covenants, hard-asset backing, and meaningful junior capital beneath them, helping to mitigate downside risk while maintaining attractive return potential.
A Pragmatic Energy Transition
Demand for infrastructure credit is increasingly coming from multiple directions. Private credit investors are seeking diversification beyond traditional corporate direct lending, while infrastructure equity investors are evaluating whether infrastructure credit can provide similar return potential with greater downside protection and more current income. “We’re seeing capital coming from both sides,” explains Dimitrievich. “Private credit investors are looking for diversification, while infrastructure equity investors are asking whether they can achieve similar returns with greater downside risk mitigation and more current income.”
“Private credit investors are looking for diversification, while infrastructure equity investors are asking whether they can achieve similar returns with greater downside protection and more current income.”
Don Dimitrievich, Senior Managing Director and Portfolio Manager for Energy Infrastructure Credit (EIC) at Nuveen.
Although much of the discussion around energy infrastructure centers on renewable energy, Dimitrievich argues investors need to adopt a more pragmatic approach. “We take a pragmatic approach because the reality is that we are not yet at a point where the world can rely entirely on sustainable energy sources,” he says. “You need to think about the entire energy value chain.” While sustainable investments are expected to represent an increasingly larger share of portfolios over time, conventional energy infrastructure continues to play an important role in supporting rising power demand and maintaining energy security. “We believe sustainable investments will continue becoming a bigger portion of the portfolio over time,” says Dimitrievich. “But given the growth in energy demand we expect, we still need an all-of-the-above approach today.”
Looking ahead, he believes energy infrastructure credit could emerge as one of the key growth segments within private markets. As electricity demand accelerates, digital infrastructure expands, and energy systems continue evolving, infrastructure itself may increasingly transition from a purely defensive allocation toward a structural growth opportunity.
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