# SAM #FA480026SS92326

Sole Source Substation Electrical Protection Relay System Upgrade for Langley AFB

**Buyer:** 480th Fighter Squadron
**Posted:** September 23, 2026
**Respond By:** September 24, 2026
**Identifier:** FA480026SS92326
**NAICS:** 238210

This notice announces the intent of the 633d Contracting Squadron at Langley Air Force Base to procure a Substation Electrical Protection Relay System Upgrade as a sole source action.
- Agency: 633d Contracting Squadron, Air Combat Command, Department of the Air Force
- Location: Langley Air Force Base, Virginia
- Requirement: Upgrade of the substation's electrical protection relay system
- OEM: Siemens Industry, LLC identified as the only source due to proprietary technology and unique capabilities
- Procurement Method: Sole source under GSAR 538.7104-3(b)(ii)
- Opportunity for Other Vendors: Notice invites responses from other vendors who believe they can meet the requirements, but Siemens is the designated vendor
- No specific part numbers, quantities, or detailed product/service line items provided
- Focus: Electrical system upgrade at the base's substation
- Commercial Opportunity: Potential for other vendors to respond if they can demonstrate capability to meet the requirements

### Description

<p>Notice of Intent to Solicit From a Single Source</p>

<p>The 633d Contracting Squadron intends to solicit from a single source under the authority of&nbsp;GSAR 538.7104-3(b) (ii) to Siemens Industry, LLC for Substation Electrical Protection Relay System Upgrade. The Contracting Officer has determined that the circumstances of the contract action deem only one source reasonably available based on the capabilities of the source and proprietary nature of the contractor.</p>

<p>This notice is for information purposes only and is not a Request for Quote (RFQ). A determination not to compete this proposed contract based on this notice is within the discretion of the Government Contracting Officer.</p>

<p>Interested parties that believe they can meet the requirements may respond to this notice. The response should contain a brief description of any experience with this information. The Government reserves the right to evaluate all responses received and may determine an interested vendor not capable of performing the work required.</p>

[View original listing](https://sam.gov/opp/0f11ed206f9948a9a41c69cb8e28883b/view)