ATT3_Sole_Source.pdf

This document is an "Other Than Full and Open Competition" Justification for a sole-source procurement by a federal agency. ESL Power Systems will provide one (1) Manual Bus Transfer (MBT), Part Number S200-97B, for a project period from 06 Feb 2026 to 06 Nov 2026. The MBT will provide reliable shore and emergency backup power for Reactor Plant safety.

The procurement is being conducted as a sole source because these specific MBTs are currently used by NSSF (Naval Sea Systems) and were previously determined to meet all Reactor Plant Manual requirements. The MBTs have been in use by the Nuclear Submarine Department's engineering groups, Naval Submarine Base New London, and Naval Facilities Engineering Systems Command. The document indicates the procurement is under the simplified acquisition threshold (under $250,000) and has been approved through the appropriate contracting channels, with signatures from the customer, Contracting Officer, and the One Level Above Contracting Officer dated 12/1/25.