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ATR Plant Protection System (PPS) Seismic Switch Replacement

In plain English

Idaho National Laboratory seeks suppliers of nuclear-qualified seismic switches for a reactor protection system, replacing obsolete parts. Firms must show testing, quality, and nuclear standards capability. Market research only; no solicitation yet.

Agency: Energy, Department Of · Energy, Department Of
Notice type: Sources Sought
Set-aside: No set-aside (open to all)
NAICS: Not listed
Place of performance: ID
Posted: Nov 3, 2026
Response due: Apr 24, 2027
Solicitation number: INL-27-002

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Description

INTRODUCTION Battelle Energy Alliance, LLC (BEA), the management and operating contractor for the U.S. Department of Energy-owned Idaho National Laboratory (INL), is seeking Expressions of Interest (EOI) from qualified suppliers capable of providing environmentally and seismically qualified seismic switches for use in the Advanced Test Reactor (ATR) Plant Protection System (PPS). The purpose of this EOI is to identify suppliers with the technical capability, quality assurance program, testing facilities, and experience necessary to provide safety-related seismic switch equipment qualified for nuclear applications. This EOI is being issued for market research and acquisition planning purposes and is intended to identify potential suppliers for a future procurement opportunity. The EOI process is used by INL to develop a list of qualified and interested vendors that may be considered for future solicitations. BACKGROUND The ATR Plant Protection System currently utilizes seismic switches to provide a critical reactor protection function. Seismic switches detect ground motion and initiate a reactor scram when predetermined seismic thresholds are exceeded. The existing Kinemetrics Model TS-3A seismic switches are obsolete and have demonstrated performance degradation, resulting in increased reliance on limited spare inventory. Additionally, one seismic switch is currently out of service, placing the PPS in a reduced logic configuration. Replacement with modern, supported equipment is required to restore normal system configuration and ensure long-term reliability and maintainability. SCOPE OF INTEREST BEA seeks information from suppliers capable of providing complete seismic switch solutions meeting the functional, environmental, seismic qualification, testing, documentation, and quality assurance requirements typically associated with nuclear safety-related applications. Functional Capability Three-axis ground motion sensing capability. Dry contact output suitable for reactor protection system input. Adjustable seismic trip setpoints. Response times consistent with nuclear protection system applications. Long-term reliability and maintainability. In-situ testing and calibration capabilities. Environmental and Seismic Qualification Respondents should be capable of qualifying equipment consistent with applicable industry standards, including IEEE 603 IEEE 323 IEEE 344 ANSI/ISA-67.04.01 ASME NQA-1 Deliverables Suppliers should be capable of providing: Complete seismic switch assemblies. Required mounting hardware and accessories. Qualification documentation and test reports. Operation and maintenance manuals. Installation and interface documentation. Calibration and surveillance procedures. Certificates of conformance and applicable certifications. MINIMUM MANDATORY CAPABILITIES To facilitate evaluation, respondents should clearly identify whether they can meet the following minimum capabilities: Provide a seismic switch solution capable of detecting lo…

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