Amazon, AEP, and X-energy Plan 12-SMR Plant in Indiana
Amazon, American Electric Power (AEP), and X-energy are collaborating on a project to develop a 12-unit small modular reactor (SMR) plant in Sullivan County, Indiana. The proposed site is the former location of I&M's Breed Generating Station. Amazon will support the project through a funding agreement and a long-term power purchase agreement, covering facility and operational costs for the contract duration. The project, if it reaches a final investment decision, is expected to create approximately 1,000 construction jobs and 100 permanent positions.
Each Xe-100 SMR provides 80 MW of electrical energy, with 12 units arranged in three groups of four, potentially generating nearly a gigawatt of carbon-free power for the regional grid. AEP Chairman and CEO Bill Fehrman stated that advanced nuclear energy could provide dependable power for over half a century and support economic growth. Josh Weissman, VP of Data Center Infrastructure Capacity Delivery at Amazon, noted the project's alignment with Amazon's Climate Pledge goal to achieve net-zero carbon across operations by 2040. X-energy CEO J Clay Sell highlighted the collaboration's aim to advance a clean, safe, and reliable energy solution for Indiana.
Project Background and Technology
This Indiana project is the second under a 2024 collaboration between Amazon and X-energy, which includes Amazon taking a stake in X-energy. Their joint goal is to add over 5 GW of new nuclear capacity to the US grid by 2039. The first scheme is planned for the Cascade Advanced Energy Facility in Washington state. Amazon intends to be the first off-take customer for these projects, providing a demand signal to accelerate new carbon-free power for the grid.
The Xe-100 is a pebble bed high-temperature gas reactor with a thermal output of 200 MW (80 MW electrical). It uses TRISO (tri-structural isotropic) fuel particles, which are enriched uranium spheres coated with carbon and ceramic materials designed to withstand high temperatures. The main feedstock for the fuel, manufactured by X-energy's TRISO-X subsidiary, is high-assay low-enriched uranium (HALEU). In February, TRISO-X received a 40-year Special Nuclear Material Licence from the US Nuclear Regulatory Commission, allowing it to commercially manufacture HALEU fuel under a single license. HALEU contains between 5% and 20% fissile uranium-235, which is a higher enrichment than the 3.5% to 5% U-235 found in typical commercial reactor fuel.