One of the most important settings on your new Deye hybrid inverter is the System Work Mode. While WISE Energy always sets up, pre-configures and tests your inverter before handover, situations change — so it helps to understand what these settings actually do. The System Work Mode controls the order in which your inverter uses and distributes power between your home loads, your battery, and the grid (or a generator).

How to open the System Work Mode menu

1. Tap the cog / settings symbol in the top-right corner of the inverter touchscreen.
2. Select System Work Mode.

The System Setup menu – tap “System Work Mode”
The System Setup menu – tap “System Work Mode”

Reading your home energy screen

The main screen shows live power flow between your solar, the grid, your battery and your home. Green arrows show where energy is moving right now — for example, solar charging the battery and powering the house, with any surplus going to the grid.

Live energy-flow screen: solar, grid, battery and home
Live energy-flow screen: solar, grid, battery and home

The three core work modes

The top of the menu has three radio-button options. These have the biggest impact on how your system behaves:

The System Work Mode settings screen
The System Work Mode settings screen
Selling First
Lets the inverter sell excess solar back to the grid. Power is used in this order: solar → grid → battery. PV first powers the home and charges the battery, and any excess is exported. This maximises export earnings, but be careful: it does not prioritise storing energy for the evening, so your battery can be drained. Not recommended for prolonged use if your goal is to reduce grid costs.
Zero Export to Load
The inverter powers only the connected backup loads — it will not export to the grid. A built-in CT (current transformer) detects any power heading back to the grid and trims the inverter’s output to supply just your load and charge the battery.
Zero Export to CT
Similar to above, but the CT is placed at your main grid connection point, so the whole home is balanced (not just the backup circuit) while still preventing any export to the grid. This is the common choice for homes that are not allowed to export, or choose not to.
“Solar Sell” tick-box
Available in the zero-export modes. Tick it to still allow excess solar to be sold to the grid while the inverter otherwise prevents export of battery/grid power.

Zero-export Power

If you need true zero export, it is best to allow a tiny trickle feed from the grid. This stops the inverter’s internal controller from accidentally pushing energy back to the grid. Set this between 20–100W — a small number of watts your inverter will constantly draw when the grid is available.

Energy Pattern: Battery First vs Load First

Battery First
Solar charges the battery first, then powers the home. If solar is short, the grid tops up both the battery and the load.
Load First
Solar powers the home first, then charges the battery. If solar is short and the battery is empty, the grid supplies the home.
WISE Energy recommends Load First for most homes — this is your standard “self-consumption” setting, designed to use your own solar and battery before drawing from the grid.

Max Solar Power

Sets the maximum DC input power accepted from your solar panels (this is different from your export limit). Lowering it de-rates your MPPTs, so it is best to set this to the maximum regardless of array size, unless you have a specific reason not to.

Grid Peak-shaving

When enabled, this limits the power drawn from the grid to a set value. If your home’s demand exceeds that value, solar and battery power top up the difference. Note: if solar + battery still cannot meet demand, the inverter will draw past your set limit to keep your home running.

Not sure which mode is right for you?
We’re here to help — call 1300 368 331 and the WISE Energy team will walk you through it. Thank you for choosing WISE Energy.

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