# Multimegawatt Electrolyzer Stack Heat Exchangers

Canonical: https://abierto.us/opportunities/2025025474

- Solicitation number: 2025025474
- Notice type: Solicitation
- Status: Closed. Deadline was September 25, 2025 at 7:00 PM EDT
- Department: Department of Energy
- Contracting office: Alliance for Energy Innovation, LLC - DOE Contractor (899060)
- NAICS: 332410 Power Boiler and Heat Exchanger Manufacturing
- Product or service code: 4410 Industrial Boilers
- Place of performance: Golden, Colorado
- County: Jefferson County (FIPS 08059). https://abierto.us/counties/jefferson-county-co-08059
- City: Golden. https://abierto.us/cities/golden-co-0830835
- First posted: August 25, 2025
- Last posted: September 10, 2025
- SAM.gov: https://sam.gov/workspace/contract/opp/80f0ef276ec5486a93f20281dc7d860f/view

## Description

Amendment No. 1 answers to questions posted 9/10/25. See attachment. This purchase is to acquire quantity 5 heat exchangers (HX) to allow cooling of the electrolyzer stacks being tested as part of the Multimegawatt (MMW) Electrolyzer project. The process fluid on one side of the heat exchanger will be 50/50 propylene glycol/water “cold side” and the other will be DI water “hot side”. The DI water side will need to be cleaned and passivated for Type 1 DI water.

**Attachments/Links:** Attachment 1 – Technical Specifications; Attachment 1A – DI HX

## Publications

- August 25, 2025: Solicitation, due September 25, 2025 at 7:00 PM EDT. Notice eec3ef31e15344b5980ea1191a2d2df8. https://sam.gov/workspace/contract/opp/eec3ef31e15344b5980ea1191a2d2df8/view
- September 10, 2025: Solicitation, due September 25, 2025 at 7:00 PM EDT. Notice 80f0ef276ec5486a93f20281dc7d860f. https://sam.gov/workspace/contract/opp/80f0ef276ec5486a93f20281dc7d860f/view

## Points of contact

- Nicole Edun, Nicole.Edun@nrel.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/2025025474.