A "virtual power plant" sounds like a marketing word. It mostly is. The reality underneath is simple: instead of one big power station feeding the grid, your retailer (or AEMO directly) coordinates thousands of home batteries to discharge at the same moment when wholesale prices spike. The grid gets cheap, distributed firming. You get paid for the kilowatt-hours.
This isn't theoretical anymore. Seven companies have VPPs registered with AEMO, and the largest — Tesla's South Australia VPP, now owned by AGL — has been operating for years across thousands of homes. The Cheaper Home Batteries Program rebate that launched mid-2025 explicitly assumes most installed batteries will eventually join a VPP. The economic model is built around it.
How a VPP actually pays you
There are roughly three ways VPPs put money in your account, and most programs combine two of them:
- An upfront sign-on credit — usually $200–$600 when you commit, sometimes tied to a 12 or 24-month contract
- Per-event payments — the operator dispatches your battery during peak periods and pays a premium rate (15–25c/kWh or higher) for the kWh you export, on top of your normal feed-in tariff
- A higher daily feed-in tariff — some programs replace your standard 4–7c/kWh FiT with a flat premium rate, no event dispatches required
The total varies more than retailers want to admit. For a typical 10–13.5 kWh battery, $300–$800/year is the honest middle of the bell curve. Reposit Power can push past $1,000 if you have their controller and an aggressive tariff. Tesla Energy Plan claims numbers as high as $1,600 for Powerwall owners on certain plans, but those figures depend on dispatch frequency in your state and your usage shape.
VPP income is real but not magic. Most batteries earn the price of a decent holiday — not a mortgage payment.
The five big VPP programs in Australia
The Australian VPP market in 2026 is roughly five names doing 80% of the volume:
These are 2026 indicative numbers and the ranges shift quarterly. The "best" program depends on three things you'll know after a 10-minute conversation with your consultant: your battery brand, your state, and how comfortable you are with dispatch frequency (Reposit and Amber are more active; Origin and AGL are gentler).
What you give up: the cycles
Every kWh a VPP dispatches from your battery is a kWh you're not using yourself later. Most programs cap dispatch volume — typically 10–30 events per year, each draining 30–80% of the battery — and the operator schedules around your evening peak so you're not left without backup when the sun goes down.
But cycles add up. A battery rated for 6,000 cycles to 70% capacity uses each cycle whether it's "yours" or the VPP's. The good VPP contracts include a warranty top-up — if their dispatching pushes you past your manufacturer warranty threshold, they cover the difference. Tesla and Enphase both do this for batteries enrolled in their respective programs.
The ones that don't include this are essentially asking you to subsidise their grid services with your battery's lifespan. Read the warranty clause before signing.
Who VPPs make sense for
VPPs are most worthwhile when three things line up:
- You have a battery you'd own anyway. Don't buy a battery for VPP income — the math doesn't work. Buy a battery to displace your peak grid usage; treat VPP earnings as a bonus.
- You're in a high-volatility state. South Australia, Victoria, and Queensland have the most active spot markets. VPP earnings in WA and Tasmania are smaller because dispatch frequency is lower.
- You don't need 100% backup reliability. If your power going out for an hour during a heat-wave is fine because you'll still have grid, you're a good candidate. If you have medical equipment or run a home business, the dispatches may not suit you.
The honest answer for most households: join one, with a 12-month contract you can leave, then re-evaluate after a year. The downside is small and the upside, even at the lower end of the earning range, more than covers the additional cycle wear.
What to ask before signing
- How many dispatches per year, and how much battery drain per event?
- Does the operator's warranty cover wear from their dispatching?
- Can I override a dispatch (a heat-wave I want to ride out on my own battery)?
- What's the exit cost if I leave the contract early?
- Is the payment per-kWh (most honest) or a vague "annual credit" (less so)?
A consultant who actually understands your bill can pull the numbers from your retailer's offer document and tell you the year-1 net within $50 — instead of you eyeballing a marketing page.