What Does Amazon's Planned Indiana Nuclear Plant Mean for AI Data Centers in 2027?
On Monday, October 19, 2026, American Electric Power (AEP), X-energy and Amazon announced a possible 960 MW nuclear plant of 12 small modular reactors at a former coal plant site in Sullivan County, Indiana, with Amazon funding development and buying the power. For AI data centers it is a signal that big buyers are now paying to build firm, carbon-free supply rather than only contracting for it.
It is not a done deal. The reporting describes a joint development agreement to evaluate the project, and the 12 reactors move forward only if it reaches a final investment decision. No cost, construction schedule or operating date has been announced, and the reporting we read names no specific data center that the plant would serve.
This page separates what the companies and trade press have confirmed from what is still open. Sources are linked and were read on October 21, 2026.
What was announced on October 19
World Nuclear News and Utility Dive both date the announcement to Monday, October 19, 2026. The project would use 12 Xe-100 reactors from X-energy, each producing 80 MW, for 960 MW in total, at the former Breed Generating Station site in Sullivan County, Indiana. The site previously hosted a coal plant run by AEP's Indiana Michigan Power.
Roles, per Amazon's own announcement and POWER Magazine: X-energy designs the reactor, AEP's Indiana Michigan Power would operate the plant, and Amazon is a development funder and would be the first customer to buy its power. World Nuclear News adds that Amazon's support is a funding agreement plus a long-term power purchase agreement covering the facility's and its operations' costs for the contract's duration.
It is the second project under the Amazon and X-energy collaboration, which aims for more than 5 GW of new US nuclear capacity by 2039. The first is the Cascade Advanced Energy Facility in Washington state.
What is not decided yet
The plant is in the evaluation stage. POWER Magazine reports that construction proceeds only if the project reaches a final investment decision, and that no decision date, construction schedule or commercial operation target has been announced. Utility Dive likewise reports no timeline and no cost figures.
POWER also says Amazon's funding amount, the contract's term and price, the ownership structure and the NRC licensing pathway have not been disclosed. Until those appear, any claim about when this power could reach a data center is speculation.
Where AI data centers come in
Amazon ties the project to its data centers directly. Its announcement describes about 960 MW of carbon-free power for the regional grid and for Amazon's data centers, and says electricity demand is growing because of electrification, manufacturing and the rapid expansion of AI. POWER Magazine reports that Amazon expects the output to serve both the grid and its data center operations.
Utility Dive is more careful: it names no specific data center that the plant would supply. So the accurate reading is that the plant is meant to serve Amazon's data center load and the regional grid, not that a particular campus is wired to it.
Amazon also tied the project to the White House Ratepayer Protection Pledge, under which POWER reports it committed to covering the full cost of serving its data centers. Amazon's Josh Weissman is quoted there saying the company aims to pay its full costs without passing them to others. How that would work for this plant is not detailed in the sources we read.
For scale on the local side, Utility Dive cites the Indiana Utility Regulatory Commission's expectation that Indiana peak load rises from 2,800 MW to more than 7,000 MW by 2030.
What the Xe-100 is
World Nuclear News describes the Xe-100 as a pebble bed, high-temperature gas-cooled reactor that uses TRISO fuel made from high-assay low-enriched uranium (HALEU), with 80 MW of electrical output and 200 MW thermal per unit. The 12 units would be arranged in three groups of four. Amazon's announcement says the reactor uses helium coolant.
X-energy's own first planned US project is a four-reactor plant at Dow's Seadrift complex in Texas, where POWER says the NRC is reviewing the construction permit application.
What to watch next
- A final investment decision. It is the gate the sources say the 12 reactors must clear before construction proceeds.
- Licensing news. The NRC pathway for the Indiana site has not been disclosed.
- Contract terms. The term, price and Amazon funding amount are not public.
- A named data center customer. None appears in the reporting so far.
Questions people ask
Is Amazon building a nuclear plant in Indiana?
Not yet. Amazon, AEP and X-energy announced on October 19, 2026 that they are exploring a possible 960 MW plant of 12 small modular reactors in Sullivan County. The reactors proceed only if the project reaches a final investment decision.
Where would the plant be?
At the former Breed Generating Station site in Sullivan County, Indiana, a retired coal plant site that was operated by AEP's Indiana Michigan Power.
Will the power go to AI data centers?
Amazon says the carbon-free power would serve the regional grid and its data centers. Utility Dive notes that no specific data center is named.
How much will it cost and when will it open?
Neither has been announced. POWER Magazine reports that capital cost, Amazon's funding amount, the construction schedule and the commercial operation target are all undisclosed.
What reactor would it use?
X-energy's Xe-100, an 80 MW pebble bed high-temperature gas-cooled reactor that uses TRISO fuel. The plan is 12 of them.
Sources
- World Nuclear News: AEP, Amazon and X-energy plan 12-SMR plant (Oct. 19, 2026) · Announcement date, reactor specs, agreement structure
- Utility Dive: AEP signs advanced 960-MW nuclear with Amazon, X-energy (Oct. 19, 2026) · Status, no timeline, Indiana load context
- POWER Magazine: AEP, X-energy eye 960-MW nuclear plant at retired Indiana coal site · What has and has not been disclosed, data center link
- Amazon: Key takeaways on the Indiana nuclear project · Amazon's own description of roles and the data center link
Figures were read from the linked pages on October 21, 2026. The project is an early-stage proposal and details may change; the image is the developers' rendering, not a photograph of a built plant.