Portable Substation

The Bureau of Reclamation's Pacific Northwest Region is procuring a portable outdoor unit substation to be located in Grand Coulee, Washington through solicitation number 140R1725Q0006. The procurement requires a skid-mounted, 3000 kVA, three-phase transformer with a 13.8 kV delta high voltage winding and 480V wye low voltage winding, featuring natural air cooling and copper windings with vacuum pressure impregnation. The transformer must comply with IEEE, NEMA, and ANSI standards, be UL labeled, and include a temperature monitoring panel with a NEMA 3R outdoor enclosure. Technical specifications include a 115°C temperature rise, 5.75% impedance, multiple de-energized tap settings, and the unit must be accompanied by comprehensive documentation including manufacturer data sheets, drawings, test reports, and operation and maintenance instructions. The solicitation has been amended multiple times, with the final proposal submission deadline extended to October 3, 2025, and includes clarification that the low voltage secondary switchboard will house 10 - 400A - 480V 3-phase secondary breakers with adequate clearance for conductor termination per NEC code requirements.

This procurement is designated as a 100% small business set-aside under NAICS code 335311 (Power, Distribution, and Specialty Transformer Manufacturing) with a size standard of 800 employees. No incumbent contractors or potential award values are specified in the available documentation. The transformer system must be delivered to the Bureau of Reclamation's Grand Coulee receiving location by August 26, 2027, providing contractors with nearly two years for manufacturing and delivery. The procurement falls under PSC category 6150 (Miscellaneous Electric Power and Distribution Equipment) and the place of performance is Grand Coulee, Washington. The contracting officer for this procurement is Terry Mest from the Bureau of Reclamation's Pacific Northwest Region Grand Coulee Acquisition Group.