Synergy Battery Rewards VPP — can you actually earn money from your home battery?

Synergy launched Battery Rewards in late 2025 as WA's first residential Virtual Power Plant on the SWIS grid. The pitch: your battery automatically discharges during peak demand events, and Synergy pays you 70c/kWh for every kilowatt-hour exported.

That rate is roughly 10x what you'd earn from REBS export credits. But there are conditions, caps, and practical limitations worth understanding before you factor VPP earnings into your battery payback.

How it actually works

During a peak demand event — typically a scorching summer afternoon or cold winter evening between 3pm and 9pm — Synergy remotely signals your battery to discharge stored energy back to the grid.

The key details:

• Activation rate: 70c/kWh for energy exported during events
• Maximum events: No more than 30 per year
• Event window: Typically 3pm-9pm on extreme demand days
• Control: Synergy manages discharge remotely through your inverter
• Your usage first: Your home's demand is prioritised — the battery only exports surplus

You don't choose when events happen. Synergy calls them based on grid stress. In practice, most events cluster in January-February (summer AC peaks) and June-July (winter heating peaks).

What you'll realistically earn

Let's do the maths for a 10 kWh battery (9 kWh usable):

Best case: 30 events/year, full discharge each time

• 30 × 9 kWh × $0.70 = $189/year

Realistic case: 15-20 events, partial discharge (your home uses some)

• 18 × 5 kWh × $0.70 = $63/year

Conservative case: 10 events, modest export

• 10 × 4 kWh × $0.70 = $28/year

The honest range: $30-190/year from VPP events alone. It's not going to pay for your battery, but it's free money on top of the self-consumption savings you're already getting.

Combined with daily cycling savings ($700-1,400/year depending on tariff), a 10 kWh battery delivers $730-1,590/year total — VPP events add 4-15% to your annual battery return.

The VPP is mandatory for the WA rebate

This is the part many people miss: participating in a VPP is a requirement for the WA Residential Battery Scheme rebate.

If you want the $1,300 Synergy rebate (or $3,800 Horizon Power rebate), you must:

1. Enrol in an approved VPP program (Battery Rewards or equivalent)
2. Stay enrolled for a minimum of 2 years
3. Have a compatible, CEC-approved battery with remote management capability

After the 2-year commitment, you're free to opt out. But given the 70c/kWh rate, there's little reason to — the earnings exceed the minor inconvenience of occasional discharge events.

Which batteries are compatible?

Not every battery supports VPP. The inverter and battery combination must allow remote dispatch through Synergy's platform.

Confirmed compatible:

• Tesla Powerwall 2 & 3 (via Tesla Autobidder)
• Sungrow SBR/SBH (via iSolarCloud)
• BYD HVM/HVS with compatible hybrid inverters
• Enphase IQ Battery (via Enphase Cloud)
• GoodWe Lynx with GoodWe hybrid inverter

Check with your installer for other brands. The compatibility list is growing as manufacturers integrate with Synergy's platform.

VPP vs daily cycling — which matters more?

This is where people get confused. Your battery's primary value is daily cycling — storing cheap solar and using it during expensive peak hours. VPP events are a bonus, not the main event.

| Income source | Annual value | % of total | |---|---|---| | Daily self-consumption (A1 tariff) | $700-1,000 | 80-85% | | Daily self-consumption (Midday Saver) | $900-1,400 | 85-90% | | VPP Battery Rewards | $30-190 | 4-15% | | DEBS/REBS export credits | $50-150 | 5-10% |

If someone tells you a VPP will make your battery "pay for itself," they're overstating it. The self-consumption savings do the heavy lifting. VPP is the cherry on top.

The bigger picture: why Synergy wants your battery

WA's SWIS grid is under pressure. Record-low minimum demand from rooftop solar during the day, record-high demand from air conditioning during summer evenings. The grid needs flexible, dispatchable capacity — and 50,000+ home batteries collectively provide that.

Synergy is building massive grid-scale batteries at Collie (560 MW + 500 MW), but home batteries distributed across the network can respond faster to localised demand spikes. Your 10 kWh battery is a tiny piece of a much larger grid stability puzzle.

As the SWIS transitions to majority renewables, expect VPP rates and event frequency to increase. The 70c/kWh rate may look modest now, but it's a foundation for what could become a more valuable program over time.

Should you factor VPP into your battery decision?

Yes, but don't let it be the deciding factor. If battery economics work for your household based on self-consumption savings alone (payback under 8 years), the VPP is a free bonus. If you need VPP earnings to make the payback work, the battery probably isn't right for you yet.

The real reason to join: the WA rebate requires it. The $1,300 rebate you get upfront is worth far more than any VPP earnings over the mandatory 2-year period. Think of VPP participation as the cost of accessing that rebate — and any actual earnings as a bonus.

Related Reading

• Home Batteries in WA — the honest ROI picture — Full brand comparison and payback calculations.
• WA Rebates Are Changing in 2026 — Timeline of federal and state rebate changes.
• Australia's Battery Boom: What Perth Buyers Need to Know — Supply, wait times, and brand availability.

Model your battery + VPP earnings: Our Savings Planner includes VPP credits in the battery ROI calculation, using your actual tariff and usage pattern.

Sources: Synergy Battery Rewards, Solar Choice VPP Review