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1 Tesla Road, Austin, TX 78725 <br />P 650 681 5100 F 650 681 5101 <br />• <br />• <br />• <br />• 2022, 2019, and 2016 California Building Code® (CBC) <br />• 2022, 2019, and 2016 California Residential Code® (CRC) <br />To whom it may concern: <br />Applicable Codes: <br />CA <br /> 1, 2023 <br />Tesla Powerwall and Powerwall+ Hardware Compliance Letter <br />2021, 2018, and 2015 International Residential Code® (IRC) <br />2021, 2018, and 2015 International Building Code® (IBC) <br />American Society of Civil Engineers® (ASCE) 7-16 and 7-10 <br />The Tesla Powerwall and Powerwall+ energy storage system, which from this point on will be referred to as Powerwall, has <br />been designed by Tesla for common applications. The design of the mounting system including hardware has been reviewed <br />and it was determined, for the configurations and criteria contained within this document, to be compliant with the structural <br />requirements of the applicable codes listed above. <br />The Inverter portion of the Powerwall is attached to the wall with it's own bracket and anchors. The weight of the Inverter <br />portion is less than a third of the Battery portion and anchored with approximately half as many connections. Therefore the <br />Inverter bracket anchors pass by inspection when the Battery bracket anchors are passing. Note, the Inverter portion is a <br />single unit and cannot be stacked over the Battery portion. <br />All wall framing referenced in the details must be part of the home's main permitted bearing wall and or lateral resisting <br />system. The contractor and their licensed design professional are responsible for ensuring the walls, and their load transfer <br />connections, are structurally sound to support all code-specified vertical and lateral loading imposed by the equipment. <br />This report is not site-specific and therefore is intended for attachments in regions where the design criteria outlined is not <br />exceeded. Only the hardware attachment of the Powerwall mounting bracket to various structure types is considered in this <br />document. <br />REENIIGER <br />LARUTCURTS AINROFILACFOETATS <br />GNELANOISSEFORPDERETSEHCAZHTENEKL <br />N <br />AP <br />Exp. 3-31-25 <br />No. S3878 <br />R <br />U <br />TABLE OF CONTENTS <br />Global Design Criteria 3 <br />Appendix A - Powerwall 3 Anchorage Details <br />Load Applications 5 <br />Attachment to Wood Studs 6 <br />Attachment to Concrete/CMU Wall 8 <br />4Gravity Load Calculations <br />Attachment to Metal Studs 7 <br />Three-Stacked Units attachment to Wood Studs 10 <br />Three-Stacked Units Attachment to Metal Studs 11 <br />Three-Stacked Units Attachment to Concrete/CMU/Brick <br />Wall <br />9Load Applications for Three-Stacked Units <br />12 <br />Attachment through Exterior Siding 13 <br />A3 - A6 <br />2 <br />214 W Alton Ave <br />10/8/2024