Nuclear Infrastructure Investing: Why AI’s Power Demand Changes Everything

The U.S. consumes over 4,000 terawatt hours (TWh) of electricity annually. That number is about to climb, and existing grid infrastructure can’t keep up.

AI and data center growth are creating electricity deficits that require structural solutions. Nuclear energy currently provides 19% of U.S. electricity generation and over 50% of carbon-free power. As demand grows an estimated 2% to 3% annually through 2030 and beyond, nuclear infrastructure is positioned to play a critical role in meeting that expansion.1

This isn’t an energy commodity play. It’s infrastructure economics.

Why Is AI Creating an Electricity Supply Gap?

Source: EIA as of February 2024

Most investors still treat nuclear energy as a political debate or a uranium price bet. That framing misses the fundamental shift happening in U.S. power markets.

Data centers consumed 176 TWh of electricity in 2023. By 2028, that figure is estimated to reach 325 to 580 TWh, representing 6.7% to 12% of total U.S. electricity consumption. This load growth has tripled over the past decade and may double or triple again by 2028.2

The U.S. generates electricity from six primary sources: Natural gas, nuclear, coal, wind, solar and hydropower.

Coal’s share will decline. Natural gas and nuclear stand to gain market share in a growing pie. Companies positioned in nuclear infrastructure have the potential to increase their market share in an expanding market. That’s a favorable investment dynamic that may transcend commodity price volatility.

Public sentiment has shifted too. U.S. public support for nuclear energy reached 61% in 2025, near record highs compared to 51% in 2022. Wall Street Journal readers indicated they would prefer a nuclear power plant in their backyard over a wind or solar farm. That’s a dramatic reversal from the Three Mile Island and Fukushima era.

How Do Nuclear Infrastructure Economics Differ from Commodity Plays?

Nuclear assets can generate long-duration cash flows through regulated rate structures and capacity payments. These are income-generating infrastructure assets, not commodity exposures tied to fuel price swings.

The clearest example: Constellation Energy’s agreement with Microsoft to restart Three Mile Island Unit 1.

Constellation plans to invest $1.6 billion to restart the 835-MW reactor by 2028. Microsoft has agreed to purchase electricity from the facility over a 20-year period at a set rate. The DOE closed on a $1 billion loan to support the restart in November 2025.3

This contract structure transforms volatile wholesale market cash flows into secured, long-term revenue streams backed by one of the highest-rated counterparties in the world. Constellation expects this fixed-price contract to increase its annual base earnings per share growth rate from 10% to 13% from 2024 to 2030.

The unit is projected to supply enough electricity to meet approximately six years of forecasted load growth in Pennsylvania. Megacap technology companies are willing to enter long-term contracts because data center campuses require reliable, low-cost power at scale. Nuclear facilities can provide that baseload capacity with known economics and regulatory pathways.

What’s the Uranium Enrichment Bottleneck?

The constraint in scaling nuclear capacity isn’t uranium availability. It’s enrichment capacity, specifically domestic enrichment capacity that doesn’t rely on Russian or Chinese supply sources.

Nuclear reactors require enriched uranium to generate the heat that creates steam, turns turbines, and produces electricity. The U.S. has historically depended on foreign sources for enriched uranium. That’s changing.

The U.S. Department of Energy awarded $2.7 billion in January 2026 to strengthen domestic enrichment services over the next ten years. The funding was distributed equally ($900 million each) to American Centrifuge Operating, General Matter, and Orano Federal Services to expand domestic capacity for low-enriched uranium and high-assay low-enriched uranium.

Centrus Energy’s Piketon plant is currently the only facility in the U.S. licensed to enrich uranium up to 19.75% and is the first domestic plant to start enrichment production since the 1950s. The company received a $900 million task order to create domestic HALEU enrichment capacity, with first new production capacity expected online in 2029.

This isn’t political signaling. This is capital deployment.

Federal policy support has moved from rhetoric into operational funding. Energy Secretary Chris Wright has a nuclear background (he studied nuclear fusion at MIT) and the administration has signed executive orders designed to accelerate nuclear power development with a goal of adding 300 gigawatts of new nuclear capacity by 2050.

Why Focus on Reactor Life Extensions and Restarts?

Building new nuclear reactors requires decades and tens of billions in capital. Restarting and extending existing reactors offers a faster, more economical path to capacity expansion.

The Nuclear Regulatory Commission is approving reactor life extensions from 60 years to 80 years. As of August 2025, reactors approved to 80 years include Turkey Point 3&4, Peach Bottom 2&3, Surry 1&2, North Anna 1&2, Monticello, Oconee 1-3, Virgil C. Summer 1, and Point Beach 1&2.

U.S. nuclear capacity factors have remained near 90% since the turn of the century. The fleet produces more electricity from 94 reactors today than it did from 104 in the early 2000s. That demonstrates operational excellence and successful uprate programs.

Reactor restarts and life extensions provide known economics, proven technology, and regulatory approval pathways. Small modular reactors remain speculative. No SMRs are operating in the U.S. today, and the regulatory approval process for new reactor technologies can extend timelines and increase costs, which challenges economic viability.

Proven reactor technologies with NRC approval may represent lower-risk infrastructure investments.

How Should Advisors Evaluate Nuclear Infrastructure Investments?

The investment framework for nuclear infrastructure mirrors the approach used during the shale development cycle: identify low-cost producers in geographically advantageous positions with strong management teams and high-quality counterparties.

Geographic positioning matters. Data centers aren’t being built uniformly across the U.S. Electricity demand growth will concentrate in regions where data center campuses are located. Nuclear operators positioned in those geographic areas, with the ability to deliver low-cost power through existing transmission infrastructure, may hold structural advantages.

Management teams matter. Operators with track records of building and operating nuclear facilities on time and on budget are better positioned to capture capital deployment opportunities.

Counterparty quality matters. Long-term contracts (10 to 20 years) with investment-grade technology companies provide the revenue visibility that infrastructure investors typically require.

Companies positioned across the nuclear value chain include:

  • Centrus Energy: Domestic uranium enrichment capacity
  • Cameco: Uranium mining and production
  • BWX Technologies: Nuclear components and fuel
  • Constellation Energy: Largest nuclear fleet operator in the U.S.
  • Vistra Energy: Nuclear generation and power marketing
  • Talen Energy: Nuclear generation assets

These aren’t speculative plays on next-generation reactor technologies. These are companies operating existing nuclear assets and positioned in the relicensing and restart value chain.

What Makes This a Structural Opportunity?

The convergence of AI infrastructure demand, grid reliability concerns, and decarbonization mandates creates a structural tailwind for nuclear that may transcend political cycles. This is infrastructure necessity, not energy preference.

Electricity demand in the U.S. is projected to reach all-time highs in 2025 and 2026, breaking nearly two decades of flat demand. Total consumption is forecast to rise from about 4,110 billion kilowatt-hours in 2024 to more than 4,260 billion kilowatt-hours in 2026. Commercial and industrial sectors are growing at 2.6% and 2.1% annually, respectively.

By 2030, the U.S. economy may consume more electricity for processing data than for manufacturing all energy-intensive goods combined, including aluminum, steel, cement, and chemicals. Data center power demand is forecast to hit 106 gigawatts by 2035, a 36% jump from projections published just seven months earlier.

Nuclear infrastructure is the foundation that makes AI architecturally possible.

Federal loan programs, enrichment capacity expansion, reactor life extensions, and direct contracts with technology companies aren’t future possibilities. They’re current deployments.

Infrastructure outlasts narratives. Political winds shift. Energy demand compounds.

The investment case is structural, not speculative.

Ready to explore nuclear infrastructure investing in more depth? Download our complete guide to understanding the investment opportunity in nuclear energy.

Interested in accessing the opportunity? View TNUK’s fund page, our actively managed ETF, solely dedicated to nuclear.

FAQ

How much electricity do data centers currently consume in the U.S.?

Data centers consumed 176 TWh of electricity in 2023. By 2028, that figure is estimated to reach 325 to 580 TWh, representing between 6.7% and 12% of total U.S. electricity consumption.

What percentage of U.S. electricity comes from nuclear power?

Nuclear energy provides approximately 19% of U.S. electricity generation and accounts for over 50% of the nation’s carbon-free power production.

Are small modular reactors a viable investment today?

No SMRs are currently operating in the U.S. The regulatory approval process for new reactor technologies can extend timelines and increase costs. Proven reactor technologies with existing NRC approval may represent lower-risk infrastructure investments at this stage.

How are technology companies securing nuclear power for data centers?

Companies like Microsoft are entering into long-term power purchase agreements with nuclear operators. Microsoft’s 20-year agreement with Constellation Energy for Three Mile Island Unit 1 transforms volatile wholesale market exposure into secured, long-term revenue streams.

What federal funding is supporting domestic uranium enrichment?

The U.S. Department of Energy awarded $2.7 billion in January 2026 to strengthen domestic enrichment services over ten years, distributed equally among American Centrifuge Operating, General Matter, and Orano Federal Services.


Important Information

Nothing contained in this communication constitutes tax, legal, or investment advice. Investors must consult their tax advisor or legal counsel for advice and information concerning their particular situation. This communication contains certain statements that may include “forward-looking statements.” All statements, other than statements of historical fact, included herein are “forward-looking statements.” Although Tortoise Capital believes that the expectations reflected in these forward-looking statements are reasonable, they do involve assumptions, risks and uncertainties, and these expectations may prove to be incorrect. Actual events could differ materially from those anticipated in these forward-looking statements as a result of a variety of factors. You should not place undue reliance on these forward-looking statements. This communication reflects our views and opinions as of the date herein, which are subject to change at any time based on market and other conditions. We disclaim any responsibility to update these views. These views should not be relied on as investment advice or an indication of trading intention. Discussion or analysis of any specific company-related news or investment sectors are meant primarily as a result of recent newsworthy events surrounding those companies or by way of providing updates on certain sectors of the market. Tortoise Capital, through its family of registered investment advisers, does provide investment advice to Tortoise-related funds and others that include investment into those sectors or companies discussed in this communication. As a result, Tortoise Capital does stand to beneficially profit from any rise in value of the sectors broadly discussed, including individual companies contained within.

Tortoise Capital Advisors, LLC is the advisor to the Tortoise Nuclear Renaissance ETF.

Click here for TNUK full holdings.

Before investing in the funds, investors should consider their investment goals, time horizons and risk tolerance. The funds’ investment objective, risks, charges and expenses must be considered carefully before investing. The statutory prospectuses and the summary prospectuses (click here) contain this and other important information about the funds. Copies of the funds’ prospectus may be obtained by calling 855-994-4437 or by emailing info@tortoisecapital.com. Read it carefully before investing.

As stated in the Prospectus, the total annual operating expenses are 0.75%.

Investing involves risk. Principal loss is possible. The Fund is classified as “non-diversified,” which means the Fund may invest a larger percentage of its assets in the securities of a smaller number of issuers than a diversified fund. Investments in securities of a limited number of issuers exposes the Fund to greater market risk and potential losses than if its assets were diversified among the securities of a greater number of issuers. The Fund will be sensitive to, and its performance will depend to a greater extent on, the overall condition of companies in the Nuclear Industries. Companies in the Nuclear Industries may face considerable risk as a result of, among other risks, incidents and accidents, breaches of security, ill-intentioned acts of terrorism, air crashes, natural disasters (such as floods or earthquakes), equipment malfunctions or mishandling in storage, handling, transportation, treatment or conditioning of substances and nuclear materials.

Derivatives include instruments and contracts that are based on and valued in relation to one or more underlying securities, financial benchmarks, indices, or other reference obligations or measures of value. Investments in securities of foreign companies involve risks not ordinarily associated with investments in securities and instruments of U.S. issuers, including risks relating to political, social and economic developments abroad, differences between U.S. and foreign regulatory and accounting requirements, tax risks, and market practices, as well as fluctuations in foreign currencies. Companies defined as small and mid-cap securities may involve greater risk than is normally associated with large cap companies, and as a result may be more volatile and less liquid than the securities of large-cap companies, and may have returns that vary substantially from the overall securities markets.

Shares of exchange-traded funds (ETFs) are not individually redeemable and owners of the shares may acquire those shares from the ETF and tender those shares for redemption to the ETF in Creation Units only, see the ETF prospectus for additional information regarding Creation Units. Investors may purchase or sell ETF shares throughout the day through any brokerage account, which will result in typical brokerage commissions.

Nothing on this communication should be considered a solicitation to buy or an offer to sell any shares of the portfolio in any jurisdiction where the offer or solicitation would be unlawful under the securities laws of such jurisdiction. Nothing contained in this communication constitutes tax, legal or investment advice. Investors must consult their tax advisor or legal counsel for advice and information concerning their particular situation.

Quasar Distributors, LLC, distributor

NOT FDIC INSURED · NO BANK GUARANTEE · MAY LOSE VALUE

  1. U.S. Energy Information Administration (EIA): https://www.eia.gov/todayinenergy/detail.php?id=65264 ↩︎
  2. U.S Department of Energy: https://www.energy.gov/articles/doe-releases-new-report-evaluating-increase-electricity-demand-data-centers ↩︎
  3. Utility Dive: https://www.utilitydive.com/news/doe-loan-constellation-crane-nuclear-restart/805923/ ↩︎