Aaron Tilton serves as the CEO of Blue Castle Holdings, according to an undated document regarding the Blue Castle project. His company has been involved in efforts to develop a nuclear power plant in Green River, Utah, for nearly two decades. This work involves a project that was first proposed by Transition Power Development in 2007, a company whose management and activities were consolidated into Blue Castle Holdings in 2009, according to a report published on May 29, 2026.
Tilton has stated that the focus of Blue Castle from the beginning has been to create an opportunity to work with a company like Fulcrum Point. According to the undated document, Blue Castle has spent 19 years laying the groundwork to de-risk a site for the deployment of nuclear power. Tilton noted that this work creates significant value for future energy development that can serve energy demand across Utah and the surrounding region. The CEO also highlighted potential on-site, behind-the-meter opportunities for advanced technology applications.
As part of Utah's Operation Gigawatt, a state initiative launched by Governor Spencer Cox in 2024 to double the state's power production over the next 10 years, the nuclear landscape in the region is shifting. In November of last year, Governor Cox unveiled a project in partnership with Hi Tech Solutions and Holtec International to site a manufacturing hub in Brigham City. This hub is intended to produce parts for SMR-300 and other advanced nuclear technologies, as well as a workforce training centre. This manufacturing effort is part of a longer-term plan to deploy a fleet of SMR reactors in Utah and across the Mountain West region.
The project Tilton oversees is moving into a new phase through a joint venture. Fulcrum Point Holdings and Blue Castle Holdings have formed a joint venture to take the Blue Castle project through stages of site development, licensing, and reactor deployment. This venture will utilize Holtec International's SMR-300 small modular reactor technology. According to a report published on May 28, 2026, the Holtec SMR-300 is a pressurized water reactor design that offers an optional Air-Cooled Condenser system, which is ideal for arid environments like Utah where water resources are scarce.
The Blue Castle project has faced various milestones and legal challenges over its history. The state of Utah granted the project water rights in 2012, which led to a court battle with the environmental group Healthy Environment Alliance of Utah (HEAL Utah). That legal matter ended in 2016 when the Utah Court of Appeals ruled in favor of Blue Castle Holdings, according to the undated document. Tilton has expressed appreciation for the collaborative effort with Emery County and the city of Green River to create meaningful economic impact in rural Utah.
What this means for Brigham City
For residents of Brigham City, the work led by Aaron Tilton and Blue Castle Holdings supports the local economy through the planned manufacturing hub. As part of the state's Operation Gigawatt, this facility aims to produce components for advanced nuclear technologies and provide a workforce training centre to support the growing nuclear ecosystem in the region.
