Page | 006 Reference Materials
In addition to the applicable fire codes, standards and test methods listed above, the following reference materials were reviewed as part of this analysis:
• MP2 Design and Installation Manual - Rev. 2.5, dated December 19, 2022 (MP2 DIM).
• MP2XL Design and Installation Manual – Rev. 1.8, dated December 20, 2022 (MP2XL DIM).
• MP2 Operation and Maintenance Manual - Rev. 1.2, dated December 6, 2022 (MP2
O&MM).
• Industrial Lithium-Ion Battery Emergency Response Guide – Rev. 2.6, dated November 11,
2022 (ERG).
• MP2/2XL UL 9540A Cell Level Fire Test Report, dated February 25, 2022.
• MP2/2XL UL 9540A Module Level Fire Test Report, dated July 15, 2022.
• MP2/2XL UL 9540A Unit Level Fire Test Report, dated August 5, 2022.
• Megapack 2 Compliance Packet – Rev. 2.6, dated September 7, 2022.
• Megapack 2XL Compliance Packet – Rev. 1.8, dated September 27, 2022.
MP2/2XL CONSTRUCTION AND DESIGN
The MP2 are a fully integrated BESS consisting of battery modules, power electronics, a thermal management system, and control systems all pre-assembled within a single cabinet. The MP2 is approximately 23.75 feet (ft) in length, 5.4 ft deep, 8.2 ft in height, and can weigh up to 67,250 pounds or 7.250 meters (m) by 1.637 m by 2.506 m and 30,500 kilograms (kg). It is a modular style BESS, where the number of battery modules can be adjusted to increase/decrease the storage capacity of an individual MP2 cabinet. Furthermore, additional MP2 cabinets can be added to the site to increase the overall storage capacity of the BESS. Below is a brief description of the MP2, its components, design listing, and fire safety features. For a more detailed discussion on the MP2 components, their location, functionality, and purpose, refer to the MP2 DIM.
Cabinet Layout
The MP2 is intended for outdoor installations, ground mounted to a foundation or base strong enough to support the weight of the equipment and anchor loads (includes concrete pads, grade beams, etc.). The thermal roof (part of the MP2’s thermal management system) is enclosed within an IP20 enclosure that sits above the battery module bays, as shown in Figure 1. The lithium-ion batteries are housed inside an IP66 steel enclosure (battery module bay) that provides protection against particle and water ingress coming into contact with the battery modules and power electronics. The IP66 enclosure is one continuous unit, meaning each of the eight bays shown in Figure 1 are open to one another. However, when the MP2 cabinet is populated with battery modules, it cannot be entered. This modular, cabinet style approach
FEI Project # 22035 Page 4 01/23/2023 22035-03R (MP2 and MP2XL FPE Report)
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