Environmental Chamber for Large Component Reliability Testing Level 2

Amendment / Modification

This amendment addresses questions received regarding the Request for Quote (RFQ) for the Level 2 Environmental Chamber. The questions have been edited to address duplicates or protect sensitive information, but their core meaning remains unchanged.

• Racking System: Vendors are to specify the distance required between modules for adequate airflow when designing and installing their own racking system.

• Water Inlet: A 3/4" FNPT inlet is required, placed on the ceiling or side of the chamber toward the rear.

• Access Ports: Four access ports are preferred on each wall, at a height between 5' - 6' from the floor, positioned roughly 1/3 and 2/3 front to back.

• Live Load: Solar panels may be energized during testing, contributing to heat dissipation. The chamber must accommodate specified dead and live loads.

• Dimensions: Chambers are estimated at 150" High X 171" Long X 150" Wide. Building entry doors are constrained at 117" tall by 90" wide.

• Lead Time: Estimated lead time for award varies based on technical evaluation, terms negotiation, and safety document review. Vendors should provide their best estimates.

• Humidity Control: Needed set points include 85°C/85%RH, 60°C/95%RH, and 60°C/10%RH. An air dryer is requested. Humidity control is specified for a dry bulb range, with a 95+/- 5% RH setpoint during water spray.

• Codes and Standards: UL508A, NFPA 70, and UL61010-1 are acceptable for NRTL evaluation; field evaluations are also acceptable.

• Floor Drain: A 4' x 2" trench drain is needed, feeding at least a 1/4" drain, with a flow up to 2.1 gpm.

• Test Article Temperature: While chamber air temperature may overshoot, test article temperature must not overshoot by more than 2°C. Uniformity of ±2°C applies to dead load situations.

• Price Justification: Offerors are preferred to provide at least 3 redacted invoices for similar systems billed within the last 18 months.

• SAM Registration: Full and active registration in SAM.gov is required.

• The proposal submission deadline remains 8/8/2025 at 5:00pm Mountain Time.

• Offers must be submitted electronically to Nicole.Edun@nrel.gov.

• Vendors must include confirmation of receipt and acceptance of this Amendment in their cover letter.

Form / Attachment / Pricing Sheet

This document outlines the technical specifications and requirements for a "Level 2 – Large Component Reliability Testing Environmental Chamber." It details the background, objective, and specific capabilities required for this equipment, which is intended for testing contemporary PV modules and other related equipment.

• Background: Explains the need for environmental chambers in PV reliability research and the market trend towards larger format modules.
• Objective: To enable testing of PV modules that do not fit in existing chambers and to support broader reliability research.
• Required Capabilities:
  • Accommodate modules up to 1.5 m x 3 m x 5 cm, with a dead load capacity of 294 kg for panels and 91 kg for racking.
  • Humidity control from 10-95% RH.
  • Temperature control based on a probe affixed to the device under test.
  • Uniform temperature distribution across modules (±2°C).
  • Chamber features: floor drain, 4 ports for wiring, remote programmable/readable setpoints and readings, water inlet for spray capability.
  • Temperature ramp rates: -40°C to 85°C in 75 minutes, and 85°C to -40°C in 75 minutes.
  • Maintain air temperature at 10°C with 21 kW live load + dead load.
  • Cool test article from 60°C to 15°C in 18 minutes with 15 kW live load + dead load.
• Technical or Safety Requirements:
  • Vendor must include facility requirements in the quote.
  • Equipment must be listed by a Nationally Recognized Testing Laboratory (NRTL) or field evaluated.
  • Specify all refrigerants used.
  • Quote installation and commissioning as a separate line item.
• Timeline: Delivery needed by January 1, 2027.

This document serves as a detailed specification for potential vendors to understand the exact technical requirements, performance criteria, and safety standards for the environmental chamber. Bidders must ensure their proposed solution meets all listed capabilities and requirements. The timeline indicates the expected delivery date, which is crucial for project planning.

Form / Attachment / Pricing Sheet

This document is an equipment specifications spreadsheet, likely intended to detail the technical requirements for various equipment associated with the opportunity. It serves as a reference for bidders to understand the specific parameters and characteristics of the equipment that may be required for the project.

• Equipment Details: Includes columns for Equipment Name, Manufacturer, Model #, and physical characteristics like Freestanding/Bench-top, Length, Width, and Height.
• Space Planning & Structural: Specifies clearance parameters (front/above, etc.) and weight.
• Utilities: Details requirements for Electrical (Voltage, Phase, Hertz, Wattage/Amperage, Dedicated Power), Domestic Water, DI Water, Drain, Process Chilled Water, Compressed Air, Specialty Gas, and Exhaust Air.
• Environmental Controls: Specifies Room Temperature Range and Room Humidity Range.
• Heat Load: Includes Heat Generation and Notes.

This spreadsheet is crucial for bidders to understand the detailed technical specifications of the equipment involved in the opportunity. It will inform decisions regarding product selection, integration, power, and utility requirements, directly impacting proposal development, cost estimation, and the feasibility of meeting project requirements.