Guides
Written for the person holding the tool.
Field-tested, step-by-step walkthroughs for installing, commissioning and connecting Deye systems. 17 live and growing.
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Commission a Deye system in 5 minutes
The full DeyeCloud app walkthrough — from pre-checks and grid code to creating a plant and energising the system.
Read guide →Smart meter wiring made simple
Which Eastron meter Australia actually uses, its terminal map, and the three mistakes that cause ~90% of meter issues: CT direction, A/B swap, and the wrong RS485 port.
Read guide →SDM120 CT meter ID fix
Can't change the Modbus ID on an SDM120 CT meter? Here's the workaround, plus the newer meter variant with a user-changeable ID.
Read guide →Commissioning
Commission a Deye system in 5 minutes
The full DeyeCloud app walkthrough — from pre-checks and grid code to creating a plant and energising the system.
Read guide →BOS-G installation essentials
Rack, cluster control box, indoor rating and the AU-required external DC protection for a BOS-G high-voltage battery.
Read guide →Metering
Smart meter wiring made simple
Which Eastron meter Australia actually uses, its terminal map, and the three mistakes that cause ~90% of meter issues: CT direction, A/B swap, and the wrong RS485 port.
Read guide →SDM120 CT meter ID fix
Can't change the Modbus ID on an SDM120 CT meter? Here's the workaround, plus the newer meter variant with a user-changeable ID.
Read guide →Connectivity & monitoring
Batteries
Stacking AI-W5.1-B battery modules
Tool-free stacking of AI-W5.1-B modules — base, modules and PDU, capacity steps, and what to set at commissioning.
Read guide →PDU1 vs PDU3 on the AI-W5.1 — and why neither has a screen
What the PDU1 and PDU3 do in an AI-W5.1 stack, the eight LEDs on the PDU faceplate and what each colour means, and where the settings screen actually is — on the inverter, not on the PDU.
Read guide →Tariffs & energy management
Deye system work modes explained
Selling First, Zero Export to Load and Zero Export to CT — what each mode does, plus Solar Sell, Energy Pattern, the export limits and Grid Peak-shaving, from the System Work Mode menu (§5.7).
Read guide →Set up Time-of-Use (TOU) on a Deye system
Schedule the battery to charge and discharge around your tariff — on the inverter screen or remotely in DeyeCloud — with a worked off-peak / peak example.
Read guide →Connect a Deye battery to Amber Electric (Deye Copilot)
Let DeyeCloud trade the battery against Amber's live spot prices — generate an Amber API token, set a dynamic tariff, and apply for Deye Copilot.
Read guide →Deye Copilot — setup, settings and AI strategies
Full Deye Copilot walkthrough: tariff/rate plan setup, applying and activating Copilot, import/export limits, battery optimisation, AC coupling, and how to turn it off.
Read guide →System design
AC coupling vs DC coupling
When to AC-couple (retrofit) versus DC-couple (new build) a Deye hybrid — and the trade-offs that matter on AU sites.
Read guide →Matching a battery to a Deye inverter — HV vs LV
Which Deye batteries pair with which inverters: the high-voltage and low-voltage (48 V) families, and why the classes must never be mixed.
Read guide →Cable & breaker sizing — 50 kW three-phase off-grid
A worked sizing reference for a SUN-50K-SG01HP3 off-grid system: battery DC protection, GRID/GEN/LOAD ports, PV and earthing.
Read guide →Parallel inverter installation
Wiring, comms and settings for running multiple Deye hybrids in parallel — on-grid and off-grid.
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