Festus data center project requires power study, Ameren officials say

James O’Mara, Ameren’s senior manager of economic development, discussed the critical role of a power-use study for CRG’s proposed $6 billion hyperscale data center in Festus, Missouri, during an August 25 "Festus Forward Community Webinar." The study, which typically takes 120 to 150 days, is a prerequisite for any large-load project to ensure sufficient electrical capacity and grid reliability for both new and existing customers. O'Mara highlighted that Ameren is often the "gating mechanism" for such projects, as a lack of available electrical capacity can halt development.

CRG, the data center development arm of Clayco, announced its plan in late 2025 (as per article, likely a typo and should be 2022) to build the data center on 361 acres north of Hwy. 67 and west of Hwy. CC. While CRG would develop the property, an operator has not yet been identified. O'Mara explained the study process, starting with a preliminary review and then requiring a formal interconnection study request from the customer, accompanied by a $200,000 deposit. He also noted that large energy users generally provide economic benefits and help put downward pressure on rates for existing customers.

Regarding infrastructure, O'Mara clarified that any upgrades necessitated by the data center would be 100% paid for by the customer, as per existing construction agreements. He also addressed water systems, stating that Ameren controls maximum electric usage through service agreements, preventing customers from exceeding contracted limits. The status of the specific Ameren study for the CRG project was not disclosed during or after the webinar. CRG President Chris McKee expressed satisfaction with the webinar's engagement and reaffirmed the company's commitment to ongoing community dialogue, with more webinars planned.