Sandbar Static Excitation Replacement

The Tri‑Dam Power Authority is seeking a qualified vendor to design, manufacture, deliver, install, test, and commission a new static excitation system for the Sandbar Powerhouse. The scope includes supplying a digital excitation system with power potential transformer (PPT), power converters, voltage regulator, control hardware, software tools, and associated spare parts; performing factory acceptance testing, site acceptance testing, and start‑up; providing on‑site training for operators and maintenance personnel; and offering optional upgrades such as rotating brushless excitation, redundancy control, N+1 thyristor bridges, and panel‑mount replacements. The contract is a sealed‑bid solicitation with a submission deadline of 3 PM PT on 7 Oct 2026. Key dates include an optional job walk on 24 Aug 2026 (RSVP required) and a bid opening meeting on the same day at 3 PM PT. The successful bidder must begin work within ten days of receiving the purchase order and deliver the equipment no later than 15 Oct 2027, with full commissioning expected before the unit outage in Dec 2027. • Design and engineering of a custom static excitation system • Manufacture and delivery of all hardware, software, and spare parts (one unit) • Installation, integration with existing generator, and factory/site testing • Optional upgrades (brushless, redundancy, N+1, panel‑mount) • On‑site training and documentation • Compliance with extensive safety, insurance, and code requirements (NEC, IEEE, IEC, etc.) • Mandatory RSVP for pre‑bid site visit; bid must be a firm, sealed offer.