Step-by-step walkthrough for commissioning a Deye AI-W5.1 BESS system via the Deye Cloud app. Covers all five stages from plant creation to final confirmation.
Battery modules are stacked, PDU connected, and DC breaker is OFF
AC breaker is OFF
Solar DC isolator is OFF
Deye Cloud app is installed on your phone (iOS or Android)
You have a Deye Cloud account (register through the app if needed)
Important
Do not energise the system until you’ve completed all five commissioning steps. Powering on before parameter setup can cause grid faults or incorrect battery charging behaviour.
Create a Plant
Open Deye Cloud and tap “Create Plant” from the home screen. Fill in the site details including plant name, location, and system type.
Enter the customer's address as the plant location
Set plant type to match the installation (residential / commercial)
Assign a clear name the customer will recognise in their own app view
Screenshot
Deye Cloud — Create Plant screen (Photo to be added from on-site commissioning)
TIP
Use a consistent naming convention across all your installs. Something like “Smith — 42 Park Rd, Richmond” makes it easy to find later in your installer dashboard.
Discover Devices
The app scans for nearby Deye devices via Bluetooth. Make sure you’re standing within a few metres of the inverter with Bluetooth enabled on your phone.
Tap "Scan Devices" — the app will detect all nearby Deye units
Select the correct inverter serial number from the scan results
If multiple units are present (parallel install), each unit must be discovered and added individually
Screenshot
Deye Cloud — Scan Devices screen showing nearby devices
(Photo to be added from on-site commissioning)
Common Pitfall
If the device doesn’t appear in scan results, check that the inverter’s communication module has power. The inverter needs to be powered on (AC side) for Bluetooth discovery to work — but do not close the DC breaker yet.
Configure Network
Connect the inverter to the site’s WiFi network for ongoing cloud monitoring. The app will prompt you to select a WiFi network and enter the password.
Select the customer's home WiFi from the list
Enter the WiFi password — double-check for accuracy
Wait for the connection confirmation before proceeding
Screenshot
Deye Cloud — WiFi configuration screen
(Photo to be added from on-site commissioning)
TIP
If the inverter is installed far from the router and WiFi signal is weak, consider a 4G dongle or WiFi extender. A dropped connection after you leave site means the customer loses monitoring and you’ll get a callback.
The app runs a full communication check covering WiFi and Bluetooth connectivity to confirm everything is linked before moving on to parameter setup.
Set Parameters
This is where most commissioning issues occur. The app walks through key system parameters — but incorrect values here cause the majority of post-install support calls.
Key parameters to configure:
Grid Mode — set to match the installation type (grid-tied, off-grid, or hybrid)
Battery Mode — select the correct battery chemistry (Lithium-ion for AI-W5.1-B modules)
Solar Self-Consumption — typically the default operating mode for residential installs
Grid Setting — must match Australian grid parameters (AS4777.2)
Battery Setting — charge/discharge limits, depth of discharge
Time Calibration — sync the system clock for accurate data logging and time-of-use scheduling
Operational Mode — self-consumption, time-of-use, or backup-only depending on customer preference
Screenshot
Deye Cloud — Parameter setup screen showing grid and battery settings
(Photo to be added from on-site commissioning)
Critical
The app auto-checks and sets key settings like voltage, grid parameters, and battery configuration. Do not manually override these unless you have specific technical reasons and have confirmed with Deye technical support. Incorrect grid parameters can trigger anti-islanding protection and prevent export.
TIP
Take a screenshot of all final parameter values before confirming. If the customer calls with an issue later, having the original config on file saves significant troubleshooting time.
Confirm & Energise
The app runs a self-diagnostic check before final confirmation. This verifies all parameters are set correctly and communications are stable.
Review the diagnostic summary — all items should show green
Tap "Confirm" to complete the commissioning in the app
Now energise the system: close the DC breaker, then the AC breaker, then the solar isolator
Monitor the app for 5–10 minutes to verify the system is operating correctly
Screenshot
Deye Cloud — Self-diagnostic confirmation screen
(Photo to be added from on-site commissioning)
Energisation Order
Always follow the correct sequence: DC breaker first, then AC breaker, then solar isolator. Reversing this order can cause startup faults. If a fault appears, de-energise in reverse order and contact Deye technical support.
Once the system is running, walk the customer through the Deye Cloud app on their phone. Show them how to view real-time production, battery state of charge, and grid import/export. A two-minute demo reduces “how do I check my system” callbacks significantly.
Related Guides
These guides cover the other common installation issues — worth reviewing before your next Deye install.