The Department of Energy, through Battelle Energy Alliance, LLC, is seeking Expressions of Interest (EOI) from qualified vendors for the replacement of the HVAC system servicing CFA-1609 at the Idaho National Laboratory (INL) in Idaho Falls, Idaho. The current HVAC system is outdated, inefficient, and utilizes obsolete refrigerant, necessitating a complete replacement to ensure operational reliability and environmental control. This project involves the removal of existing equipment and installation of new components, including a 15-ton fan coil and condensing unit, along with associated piping and controls. Interested vendors must submit their EOIs by May 1, 2026, including company details, HVAC capabilities, NAICS codes, business size classification, and any relevant federal contracting experience to Chase Egbert at chase.egbert@inl.gov.