Donnells Static Excitation Replacement

The Tri‑Dam Project is seeking qualified vendors to design, manufacture, deliver, install, test, and commission a new static excitation system for the Donnells Powerhouse hydroelectric facility. The scope includes providing a redundant digital excitation system, power potential transformer (PPT), redundant power converters, voltage regulator, software tools, spare parts, on‑site field engineering, testing, start‑up, and training. Bidders must submit a lump‑sum price covering all hardware, engineering, factory and site acceptance testing, shipping, optional panel‑mount replacement, and optional spare‑parts list. The contract will be awarded based on a blend of technical qualifications (30 %) and price (50 %). Delivery of equipment is required no later than 15 Oct 2027, with unit outage scheduled for Dec 2027. An optional job‑walk and mandatory pre‑bid conference are scheduled for 24 Aug 2026. • Design, engineering, and detailed specifications for a fully redundant excitation system. • Supply of PPT, power converters, regulators, control hardware, software, and spare parts. • Fabrication, factory acceptance testing, shipping to 31885 Old Strawberry Rd, Strawberry, CA. • On‑site installation, field engineering support, start‑up, and 5‑day commissioning. • Training for Tri‑Dam personnel and optional panel‑mount retrofit. • Mandatory bid submission by 7 Oct 2026 2 PM PT; bids must be sealed and valid for 60 days. • Qualification requirement: minimum three comparable projects in the past five years.