Amazon to fund 12 small nuclear reactors at former Indiana coal plant

Amazon and X Energy sign new nuclear power agreement

Amazon has entered a partnership with X Energy to build a series of small modular reactors (SMRs) on the grounds of a former coal plant in Indiana. The project is expected to generate close to one gigawatt of electricity, enough to power millions of homes and to replace the fossil fuel capacity that the site once supplied.

Project scope and expected capacity

The agreement outlines the construction of twelve SMR units, each with a capacity of roughly 80 megawatts. When fully operational, the combined output will approach 960 megawatts, a figure that places the development among the largest private nuclear initiatives in the United States.

Key milestones include:

1. Site preparation and permitting by the end of 2025.
2. First reactor grid connection projected for 2028.
3. Full fleet commissioning anticipated by 2032.

Why the Indiana coal plant was chosen

The selected location offers several strategic advantages. The existing transmission infrastructure, already designed for high‑capacity power delivery, reduces the need for new grid upgrades. In addition, the site’s proximity to major industrial customers aligns with Amazon’s goal of providing reliable clean energy to its data centers and logistics hubs in the Midwest.

Local officials have welcomed the project as a pathway to repurpose a dormant industrial asset, create skilled jobs, and stimulate regional economic growth.

Technology behind the small modular reactors

X Energy’s SMR design relies on high‑temperature gas‑cooled reactor (HTGR) technology. This approach uses helium as a coolant and a graphite moderator, allowing the reactor to operate at temperatures that can support both electricity generation and industrial heat applications.

Key technical features include:

• Passive safety systems that shut down the reactor without active controls.
• Modular construction that enables factory fabrication and rapid on‑site assembly.
• Low‑enriched uranium fuel that simplifies fuel handling and reduces proliferation risk.

These characteristics make the reactors well suited for deployment at sites that previously hosted coal‑fired plants.

Regulatory and safety considerations

Before any construction can begin, the project must secure a construction permit from the Nuclear Regulatory Commission. The NRC’s review process evaluates the reactor design, site suitability, emergency response plans, and environmental impact.

Environmental assessments will also be conducted under the National Environmental Policy Act, ensuring that the transition from coal to nuclear does not adversely affect local ecosystems.

Potential impact on the grid and climate goals

Adding nearly one gigawatt of zero‑carbon electricity will help the regional grid meet increasing demand while reducing reliance on natural gas peaker plants. For Amazon, the SMRs represent a tangible step toward its pledge to power operations with 100 percent renewable energy by 2030.

Benefits include:

• Stable baseload power that complements intermittent wind and solar resources.
• Reduced carbon emissions equivalent to removing hundreds of thousands of cars from the road.
• Enhanced energy security for critical data center workloads.

Challenges and criticisms

Despite the promise of clean energy, the project faces several hurdles. Critics point to the high upfront capital cost of nuclear facilities and the long lead time required for licensing and construction. Some environmental groups also express concern about nuclear waste management and the potential for accidents, even though modern SMR designs incorporate robust safety features.

Cost‑benefit analyses from independent research institutions, such as the U.S. Energy Information Administration, suggest that nuclear can be competitive when carbon pricing is factored into the equation.

Future outlook for corporate nuclear investment

Amazon’s move signals a broader shift among large corporations seeking reliable low‑carbon power sources. As climate regulations tighten and investors demand greener portfolios, more companies may explore SMR partnerships.

Industry observers note that successful deployment at the Indiana site could serve as a template for similar retrofits of retired coal facilities across the country.

For now, the collaboration between Amazon and X Energy stands as a high‑profile example of how private capital can accelerate the transition to a more resilient and sustainable energy system.