The Department of Energy, through Battelle Energy Alliance, is seeking expressions of interest from qualified vendors for the upgrade of the HVAC system at PBF-612 located in Idaho Falls, Idaho. The primary objective of this procurement is to modernize the existing heating system by removing an outdated fuel oil burner and installing an electric resistance heater, thereby enhancing energy efficiency and aligning with sustainability goals. This project is crucial for improving operational reliability and reducing maintenance challenges associated with the current system. Interested vendors must submit their expressions of interest, including company details and relevant experience, by May 1, 2026, to Chase Egbert at Chase.Egbert@inl.gov, as only selected respondents will be invited to participate in the subsequent Request for Quote process.