the conversation gap — the return of nuclear power

As artificial intelligence drives a new era of electricity demand, America is reconsidering an energy source it once appeared increasingly willing to leave behind.

At the site of a former coal plant in Indiana, a new chapter in American energy policy may be taking shape. On October 19, Amazon, American Electric Power, and nuclear developer X-energy announced an agreement to explore constructing a facility using small modular nuclear reactors. Amazon would help finance development and, if the project moves forward, purchase electricity under a long-term contract. The proposal remains in its preliminary stages, but it reflects a broader shift in how the country is thinking about energy.

Across the United States, energy companies are also preparing to restart nuclear reactors once considered permanently closed. The federal government is providing up to $4.4 billion in loans to support three such projects in Michigan, Pennsylvania, and Iowa, which together could restore approximately 2.25 gigawatts of generating capacity. The renewed investment raises an important question: why is nuclear power becoming attractive again, and what has changed about America's energy needs?

why the calculation changed

For much of the past two decades, the economics of nuclear power appeared increasingly difficult to justify. Relatively inexpensive natural gas, growing renewable generation, and years of limited electricity-demand growth placed financial pressure on existing reactors. Nuclear plants remained capable of producing substantial amounts of electricity, but high operating costs made some facilities uncompetitive. Several closed before their operating licenses expired, reflecting an energy market in which maintaining existing nuclear capacity was not always financially attractive.

That calculation is changing, in significant part because of artificial intelligence. The data centers supporting AI require enormous quantities of electricity to operate advanced computing equipment and cooling systems, often demanding substantial power around the clock. A 2026 report from Lawrence Berkeley National Laboratory estimates that data centers could account for between 9.5% and 15.3% of American electricity consumption by 2030, depending on how the industry develops. While those projections are not guaranteed outcomes, they illustrate the scale of the challenge confronting utilities and policymakers.

Nuclear power offers something increasingly valuable in this environment: large quantities of electricity generated continuously, without the direct carbon emissions associated with burning fossil fuels. Solar, wind, and battery storage remain important parts of the energy mix, but nuclear provides a different set of capabilities, particularly for supplying reliable power regardless of weather conditions. As electricity demand grows, the policy conversation is expanding beyond which sources are least expensive today to include how quickly the country can increase dependable supply while managing costs and environmental consequences.

an unusual point of political continuity

The revival is particularly interesting because federal support crosses administrations. Michigan's Palisades nuclear plant closed in 2022, but in September 2024, President Joe Biden's administration finalized a $1.52 billion federal loan to help finance its restart, citing clean energy, employment, and grid reliability. The Trump administration has continued disbursing that financing while pursuing a broader expansion of nuclear energy, emphasizing domestic manufacturing, energy security, and the electricity needed to support artificial intelligence. Although the administrations differ in their wider approaches to energy and climate policy, both have identified nuclear generation as a resource worth preserving or expanding.

Private industry is reinforcing that interest. Microsoft has agreed to purchase power from the planned restart of a reactor at Pennsylvania's Three Mile Island site, now called the Crane Clean Energy Center, while Google is working with NextEra Energy on the revival of Iowa's Duane Arnold plant. In each case, major technology companies are helping create a commercial rationale for facilities that previously struggled to remain economically viable. It represents a notable change in the relationship between technology and infrastructure, as companies whose businesses depend on computing power become increasingly involved in decisions about how electricity is generated.

what a nuclear revival cannot resolve on its own

The economics of reopening a nuclear plant are not the same as those of building one from the ground up. Restarting an existing reactor can be faster and less expensive than constructing a new facility, but it still requires extensive inspections, maintenance, trained personnel, and regulatory approval. The proposed generation of small modular reactors introduces additional uncertainties. Their designs promise greater flexibility, but commercial deployment in the United States remains limited, and questions about construction costs and timelines have yet to be fully resolved.

Longstanding concerns about radioactive waste, plant safety, and public financing also remain relevant. Meanwhile, the expansion of data centers is creating another policy debate: who should pay for the electricity infrastructure required to support them? Large technology companies can sign long-term agreements that help finance new generation, but the electric grid is shared, and investment in transmission lines, substations, and other infrastructure can have consequences for households and businesses.

These questions are becoming more pressing as communities weigh economic development against electricity costs, land use, and environmental considerations. The return of nuclear power is therefore about more than a change in attitudes toward one technology. It reflects a broader shift in the relationship between energy, industrial policy, and the digital economy, with decisions increasingly shaped by the demands of industries that barely existed at their present scale a generation ago.

For years, America's energy conversation centered heavily on replacing existing sources of power. Increasingly, it must also confront how much additional electricity a changing economy will require, and what kinds of investment will be necessary to provide it.

The challenge is not simply to generate more power, but to determine how that power should be produced, financed, and shared.