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MEGAPACK SYSTEM COMMISSIONING PROTOCOL
This document outlines the scope of work required to commission a Tesla Megapack System,
and identifies the responsible party for each requirement. Tesla defines the commissioning
process as the period between the initial submission of the Construction Checklist through the
submittal of the signed Commissioning Completion Form.
Reference Documents
■ Megapack Onsite Commissioning Overview
https://partners.teslamotors.com/en-us/EnergvDocs/Tesla Megapack Onsite Commissioning Overview Checklist.pdf
Definitions and Cautions
This document defines the key stakeholders using the following names and roles:
Customer The purchaser of the Megapack System. This is the facility
manager, unless a third party operates the energy solution
on behalf of the facility manager.
Facility Manager The owner of the property on which the system is
installed.
Construction Manager The lead in charge of completing the entire Megapack
System installation. Also serves as the default point of
contact for site access, unless otherwise notified by the
customer.
Tesla Project Engineer The Tesla engineer responsible for reviewing site design
and working with the construction manager to complete
installation.
Tesla Megapack Support Tesla Customer Support for Megapack Systems.
Tesla Field Service Technician Tesla employee or Tesla-approved contractor trained to
commission and service Megapack Systems.
Tesla Account Management Tesla representative responsible for the Commissioning
Completion Form.
NOTE: This document is written for projects where Tesla is not responsible for construction. For
"turnkey" projects where Tesla manages construction, Tesla performs all roles attributed to the
Construction Manager in this document and some of the roles attributed to the Customer. The
detailed split in responsibilities is defined in the project Scope of Work document that forms part
of a turnkey project contract.
NOTE: Commissioning requires the Tesla Service team to perform test charging and
discharging of the system. If there are restricted times or conditions when this can occur,
please notify Tesla at Megapacksupport@tesla.com.
CAUTION: Failure to enable and execute charge at the end of 12 months storage may result in
permanent system damage and would void the warranty, as described in the Limited Warranty.
If units are expected to sit for longer than 12 months between the date of manufacture and
installation, the site manager must contact Tesla at Megapacksupport(a)tesla.com to ensure
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Megapack System Commissioning Protocol
system readiness. See Tesla's Megapack Transportation and Storage Guidelines for additional
information.
For allowable storage temperatures before system installation, refer to the Megapack System
Transportation and Storage Guidelines. For the procedure to put an installed system safely into
storage mode, refer to the Megapack System Operation and Maintenance Manual.
Order of Commissioning and Site Events
The order of events for a site is as follows:
1. Construction begins.
Responsible Party: Construction Manager
The designated contractor transports all components to the site and physically installs
the Megapack System, including positioning, cabinet anchoring, conduit wiring, wiring to
all terminals, and site cleanup, per the procedures and standards in the Megapack
System Installation Manual. The installation team tracks completion on the Tesla-
provided Construction Checklist, which the Construction Manager signs and submits in
step 3.
2. Determine tentative commissioning date.
Responsible Party: Customer
The customer must provide a tentative commissioning date to the Tesla Project
Engineer. This request is a tentative placeholder for scheduling purposes; however, the
actual onsite commissioning date is subject applicability and scheduling change. The
Construction Checklist must be successfully completed before an Onsite Commissioning
can begin.
3. Submit completed Construction Checklist.
Responsible Party: Construction Manager
Upon construction completion, the construction manager must submit the completed
Construction Checklist and its associated photos and documents to the Tesla Project
Engineer (if one has been assigned). The completion form generated from the
Installation Validation App must also be submitted. If you do not receive a response from
your Tesla Project engineer within 3 days, please email the documentation to
MegapacksupportCaMesla.com.
4. Communicate outstanding Construction Checklist items.
Responsible Party: Tesla Project Engineer
Confirms receipt of the Construction Checklist within 3 business days and communicates
any outstanding/incomplete items to the Construction Manager to rectify. The
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Megapack System Commissioning Protocol
Construction Manager must then rectify any problems and re-submit the Construction
Checklist for review. Note that multiple submission-review cycles may be required.
5. Confirm Construction Checklist is complete.
Responsible Party: Tesla Project Engineer
Confirms the Construction Checklist as complete once all outstanding items have been
rectified as indicted in the last Construction Checklist submission. This step may involve
Tesla accessing the system remotely to confirm the installation validation.
6. Onsite Commissioning (If Applicable)
Responsible Party: Tesla Onsite Commissioning Personnel
In the event that any issues cannot be rectified, Tesla is able to provide Onsite
Commissioning personnel per contractual agreement. See Appendix B below for details
regarding Onsite Commissioning.
a) Responsible Party: Tesla Megapack Support
Schedules the date for Onsite Commissioning to occur. The onsite
commissioning is scheduled for 10 business days after the unsuccessful
completion of Remote Commissioning for On-Grid sites, or 20 business days for
Grid Interactive or Microgrid sites.
b) Responsible Party: Tesla Field Service technician
Performs Onsite Commissioning after rectifying any outstanding issues.
Onsite commissioning typically takes one day per Megapack AC transformer
block; however, this is highly variable from site to site (Large Utility sites will have
individual commissioning plans). See Appendix B below for details of the tasks
performed during the onsite commissioning for each Megapack.
7. Review and send completed Commissioning Completion Form.
Responsible Party: Tesla Account Management
Reviews the Commissioning Completion Form and sends it to the Customer within 3
business days of commissioning completion.
8. Sign and return the Commissioning Completion Form.
Responsible Party: Customer
Countersigns the signed Commissioning Completion Form and returns it to Tesla
Account Management to show acceptance of site completion within 3 business days of
receiving the completed form in step 9.
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Figure 1 below provides an overview and timeline of the steps outlined above.
What Who When
1 Begin Construction Construction Manager vanes by site
2 Provide desired onsite commissioning date
Placeholder for step 6 only Customer Vanes by site
3 Send completed Construction checklist and
other deliverables Construction Manager At construction completion
4 Confirm receipt of Construction Checklist Project Engineer/ 3 business days after Step 3
Provide list of items to be rectified Megapack Support
4(response) Rectify identified problems,send
updated Construction Checklist for review Construction Manager varies by site
5 Confirm Construction Manager has fully Protect Engineer/
completed Construction Check list with no Megapack Support vanes by site
issues remaining
6a Schedule Onsite Commissioning(if Tesla Field Service Up to 10 business days after any issue identified in 1
applicable) Manager Step 5
6b Perform Onsite Commissioning(if
applicable) Tesla technician Vanes by site
7 Review and deliver Commissioning Project Engineer/ within 3 business days after completion of Step 5 or
Completion Form for sign off FMegapack Support Step 6 it applicable
8 Sign and return Commissioning Completion Form to Megapack Support Customer Within 3 business days o1 completion of Step 7
Figure 1: Commissioning and Site Events Overview and Timeline
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Appendix A: Onsite Commissioning (If Applicable)
In the event of unrectified critical issues, Tesla is able to provide onsite personnel per
contractual agreement. This is a brief summary of the Onsite Commissioning process. Refer to
the Megapack System Onsite Commissioning Overview for further details.
The following scope requires approximately 8 hours per Megapack block, and will be run in
parallel for each AC transformer block. Only Tesla Service or a Tesla-approved contractor may
perform the steps outlined in the procedure below. The exact order and scope of some tests
may vary depending on site conditions and configuration.
1. Rectify any outstanding issues identified in the Construction Checklist review and
Installation Validation app. This may involve:
a) De-energize the system for a full visual inspection of all mechanical and electrical
connections.
b) Re-energize the system.
c) Test communication between all components as listed in the section above.
2. Update system firmware for all inverter blocks to the latest version.
3. Perform basic functional testing, including charge and discharge functions, controller
data verification, and thermal system verification.
NOTE: If a full power charge could create a peak onsite or trigger export, specify a charge limit
when requesting the onsite commissioning visit.
NOTE: Tesla may charge all Megapack Units to an 80% State of Charge during commissioning.
This can take up to 24-48 hours to complete.
NOTE: If the system will be de-energized before regular use begins, the Customer must follow
the Storage Mode shutdown procedure in the Megapack System Operation and Maintenance
Manual to protect battery life.
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Revision Log
Revision # Date Description
1.0.0 06-24-2019 . Initial Release
1.0.1 07-02-2019 . Changed summary language to clarify scope of
document
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