Tesla One app commissioning guide
Quick answer
Tesla One is Tesla's app for certified installers, and it is how an electrician commissions Tesla hardware. The installer signs in as certified, connects to the Wall Connector (over Wi-Fi) or the Powerwall / Backup Gateway, runs the guided setup, applies firmware, sets the charger's output amperage or the energy system's backup configuration, runs the built-in tests (including an outage test for energy systems), and registers the install so the equipment and warranty are on record with Tesla. Commissioning in Tesla One is a required step, not optional.For licensed electricians who are, or are becoming, Tesla certified and need to commission Wall Connectors, Powerwalls and gateways correctly. By Charge Home Solutions, Tesla Energy Certified installers in all 50 states. Published 2026-10-14, updated 2026-10-14. About a 6-minute read.
At a glance
What it is
Tesla's installer app for commissioning + registration
Used by
Tesla Energy / Wall Connector certified installers
Connects to
Wall Connectors (Wi-Fi), Powerwall / Backup Gateway
Sets
Output amperage (chargers), backup config (energy)
Required
Yes: commissioning + registration are not optional
What you are installing
This Tesla One app commissioning guide explains how Tesla Energy Certified electricians use the Tesla One installer app to commission and register Tesla hardware. Commissioning is the step that turns a wired-in Wall Connector, Powerwall or gateway into a working, warranty-registered system, and it is required, not an optional extra.
Tesla One is the installer-side app (distinct from the Tesla app homeowners use). An electrician uses it to connect to the hardware, run Tesla's guided setup, apply the current firmware, set the charger's output amperage or the energy system's backup configuration, run the built-in tests, and register the install so the equipment and warranty are recorded with Tesla. Skipping or rushing it is behind many of the field problems on this site's other manuals.
Before you start
Certification and sign-in
Commissioning requires certification. Sign in to Tesla One as the certified installer so the install is tied to the correct electrician and company.
Hardware wired and ready
The unit must be fully and correctly wired and energized in the right sequence before commissioning. Commissioning does not fix wiring errors; it exposes them.
Connectivity
Confirm Wi-Fi reaches a Wall Connector location, or that you can connect to the gateway for an energy system, before you start.
Installation, step by step
- 1
Sign in as a certified installer
Open Tesla One and sign in with your certified installer account so the commissioning and registration are attributed correctly and the warranty is recorded.
- 2
Connect to the hardware
For a Wall Connector, join the unit's setup network over Wi-Fi. For a Powerwall or energy system, connect to the Backup Gateway to begin commissioning.
- 3
Run the guided setup and firmware
Follow Tesla One's guided steps for the specific product and apply the current firmware. Do not skip firmware; it is often what makes features and safety behavior work.
- 4
Set output or backup configuration
For chargers, set the output amperage to the installed breaker. For energy systems, set the backup reserve and backup configuration to the design.
- 5
Run the built-in tests
Run the product's tests. For energy systems, include a simulated-outage (islanding) test to prove the system backs up the home. For chargers, confirm a charging session at the expected rate.
- 6
Register the install
Complete registration so the equipment, the install, and the warranty are on record with Tesla. This closes out the commissioning and is what certified installation means.
What Tesla One commissioning sets, by product
| Product | Key commissioning setting | Required test |
|---|---|---|
| Wall Connector | Output amperage to the breaker | Charging session |
| Universal Wall Connector | Output + adapter/access config | Both connectors |
| Powerwall / energy | Backup reserve + configuration | Simulated-outage test |
| Powershare | Backup config + vehicle pairing | Simulated-outage test |
Mistakes we see in the field
These are the errors that fail inspections and callbacks, from real installs. They are the difference between a system that works on day one and one that fails when it matters.
Not setting the output amperage
The most common charger issue: a Wall Connector commissioned without setting the output to the breaker limits its charging speed or will not work.
Skipping firmware
Firmware updates during commissioning are what make features, access control and safety behavior work correctly. Skipping them causes intermittent problems.
Not registering the install
An unregistered install is not a complete certified install. Registration is what puts the equipment and warranty on record with Tesla.
Skipping the outage test on energy systems
Commissioning a Powerwall or Powershare without a live islanding test leaves the actual backup unverified until a real outage, which is exactly the wrong time to find a problem.
What to expect: timeline
- Commissioning itself is typically under an hour per system once the hardware is correctly wired and energized.
- Firmware updates can add time depending on connectivity.
- Energy-system commissioning takes longer than a charger because of the backup configuration and the outage test.
Tesla's official manual & video
Tesla One's exact screens and steps are defined by Tesla and update over time. Follow the in-app guided flow and Tesla's current installer documentation for the specific product; this page is the commissioning workflow around it.
▶ Tesla's installer / commissioning resources →Related guides & services
Tesla Installation Hub
The pillar hub: every Tesla product install guide, manuals and videos in one place.
Open →Join our electrician network
Get exclusive booked Tesla and EV jobs, and help becoming Tesla certified. Free to join.
Open →Wall Connector manual
The full Wall Connector install manual, including the commissioning step.
Open →Powerwall manual
The full Powerwall install manual, including commissioning and the outage test.
Open →Frequently asked questions
Tesla One is Tesla's app for certified installers. Electricians use it to connect to Tesla hardware, run guided commissioning, apply firmware, set the charger's output amperage or an energy system's backup configuration, test the system, and register the install so the equipment and warranty are recorded with Tesla. It is separate from the Tesla app that homeowners use day to day.
Yes. Commissioning and registration in Tesla One are a required part of a certified install. They set the hardware up correctly (for example, the charger's output amperage or a Powerwall's backup configuration), apply firmware, verify the system with built-in tests, and put the equipment and warranty on record with Tesla.
A Tesla-certified installer. Tesla One commissioning requires signing in as a certified installer, which ties the install to the correct electrician and company and is part of keeping the warranty valid. Electricians can get help becoming Tesla certified through our network.
It depends on the product. For a Wall Connector it sets the output amperage to the installed breaker and configures access; for a Powerwall or Powershare it sets the backup reserve and configuration and runs a simulated-outage test. For every product, commissioning also applies firmware and registers the install for warranty.
Become a Tesla-certified installer and get booked jobs.
Join our nationwide network for exclusive booked Tesla and EV jobs, flat per-job fees paid only after you are paid, and help getting Tesla and SPAN certified.