Whse stock HMB mechanism FY25

The Bureau of Reclamation, Pacific Northwest Region, is procuring two Hitachi Energy (formerly ABB) HMB-8.3 Operating Mechanisms for 550kV Power Circuit Breakers located at the Grand Coulee Power Office in Washington state. The solicitation specifically requires these mechanisms for ABB 550PM SF6 Power Circuit Breakers, with detailed technical specifications including hydraulically-operated compact design and energy storage systems with disc springs. This is a single-source procurement justified by the proprietary nature of the mechanisms, which are critical for ensuring safe and efficient circuit breaker operation, with no alternative mechanisms available without compromising equipment safety. The original solicitation was issued on July 24, 2025, with the closing date extended multiple times through amendments, ultimately extending from the original July 31, 2025 deadline to August 25, 2025, at 5:00 PM EDT. The contract period of performance runs from August 15, 2025, to September 30, 2025, with delivery required by September 30, 2025.

This procurement is set aside 100% for Economically Disadvantaged Women-Owned Small Business (EDWOSB) with a size standard of 1,250 employees, falling under NAICS code 335313 for Switchgear and Switchboard Apparatus Manufacturing. Hitachi Energy has been identified as the sole manufacturer and will be the contract awardee, as confirmed through market research that determined no other sources are reasonably available for these proprietary mechanisms. The procurement is being conducted under the Simplified Acquisition Threshold (SAT), though specific contract values are not disclosed in the available documentation. The two operating mechanisms are specifically designed for the existing SF6 circuit breaker infrastructure at Grand Coulee, with the circuit breaker nameplate showing technical specifications including 250 kV maximum voltage, 4000 A continuous current rating, and manufacture date of May 2000. Performance will occur at the Grand Coulee Power Office facility in Washington state, with an estimated six-week delivery timeline from contract award.