Diamond Energy WATTBANK VPP terms
| Program type | Battery VPP |
|---|---|
| Status | Open to new customers |
| Run by | Diamond Energy |
| Retailer you must be with | Diamond Energy |
| Credits | WATTBANK VPP credit: $250 to $450 a year, set by your solar, battery and inverter size: $250 (up to 7 kW solar, 10 kWh battery, 5 kW inverter), $275, $350, or $450 (up to 18 kW solar, 20 kWh battery, 15 kW inverter); incl. GST Battery usage credit: 30c per kWh, for energy exported to the grid between 6pm and 8am (incl. GST) |
| Fees | Establishment fee: $68, incl. GST; waived for new systems financed with Plenti |
| Control of your battery | Diamond can charge or discharge part or all of your system to the grid at any time, and preserve capacity at times it chooses |
| Lock-in | No lock-in contract and no exit fees; you can cancel at any time. |
| States and areas | NSW, VIC, QLD, SA Queensland availability is the Energex network only. |
| Solar requirement | At least 5 kW of solar panels (DC) and a 3 kW inverter |
Who can join
- Diamond Energy residential customer on its market offer
- Battery with at least 5 kWh usable capacity
- Smart meter, and broadband with a spare Ethernet port and Wi-Fi
- Not in another VPP; not on life support
Eligible batteries
| Brand | Models, as Diamond Energy lists them | Support |
|---|---|---|
| Sungrow | most models | Listed |
| AlphaESS | most models | Listed |
"Beta" means Diamond Energy lists that brand as beta or trial support.
See every program's list side by side in the VPP battery compatibility table.
Worth knowing
- Owners of Growatt, GoodWe, Fronius and LG systems can register interest with Diamond.
Getting a battery that works with Diamond Energy WATTBANK VPP
The federal Cheaper Home Batteries rebate requires the battery to be VPP-capable, whether or not you join a VPP. If you want Diamond Energy WATTBANK VPP in particular, tell your installer so the battery and inverter match Diamond Energy's list. Our 30-second check shows your rebate and puts you in touch with a CEC-accredited installer.
Common questions
How much does Diamond Energy WATTBANK VPP pay?
As at 29 September 2026, Diamond Energy WATTBANK VPP pays: WATTBANK VPP credit: $250 to $450 a year, set by your solar, battery and inverter size: $250 (up to 7 kW solar, 10 kWh battery, 5 kW inverter), $275, $350, or $450 (up to 18 kW solar, 20 kWh battery, 15 kW inverter); incl. GST; Battery usage credit: 30c per kWh, for energy exported to the grid between 6pm and 8am (incl. GST). It costs: Establishment fee: $68, incl. GST; waived for new systems financed with Plenti. Source: Diamond Energy: WATTBANK VPP, checked 29 September 2026.
Which batteries work with Diamond Energy WATTBANK VPP?
Diamond Energy lists Sungrow (most models) and AlphaESS (most models).
Is there a lock-in with Diamond Energy WATTBANK VPP?
No lock-in contract and no exit fees; you can cancel at any time.
Which states is Diamond Energy WATTBANK VPP available in?
NSW, VIC, QLD and SA. Queensland availability is the Energex network only.
Do I need solar panels for Diamond Energy WATTBANK VPP?
At least 5 kW of solar panels (DC) and a 3 kW inverter.