V2H in Australia: Vehicle-to-Home Charging Explained (2026)

Your electric vehicle’s battery is large. Much larger than any home battery you’d buy for the same money. A mid-range EV carries 60-80kWh of storage. A typical residential battery holds 10-16kWh. That’s a significant gap, and V2H technology exists to close it by letting your car power your house.

The idea is simple. The reality is more complicated, because V2H requires specific hardware on both the car side and the home side, and not all EVs or chargers support it. This guide explains what V2H actually is, how it differs from the related (and often confused) terms V2L and V2G, which Australian products support it in 2026, and whether it makes financial sense for your situation. With 4.3 million Australian homes on rooftop solar (Clean Energy Council, 2025) and EV ownership climbing fast, the combination of both technologies is a genuine option for more households than ever.

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V2L, V2H and V2G: what’s the difference?

These three terms get mixed up constantly. Here’s what each one actually means.

V2L (Vehicle-to-Load) is the simplest. Your car has an AC power outlet, often in the boot or below the rear bumper, and you can plug appliances directly into it. Power tools, a laptop, a camping fridge, a projector. It typically delivers 2.2-3.6kW, enough to run most household appliances one or two at a time. The car manages this internally; you don’t need any special home installation. It’s available now on many EVs including the Hyundai IONIQ 5, IONIQ 6, Kia EV6, Kia EV9, MG MG4, and BYD Seal, Atto 3, and Sealion 7.

V2H (Vehicle-to-Home) is a step up. The car discharges power into your home’s electrical circuit through a bidirectional charger installed on the wall. During a blackout or when you choose to draw from the car rather than the grid, your home’s lights, appliances and circuits run normally from the EV battery. You don’t need extension leads. Everything works as it normally would. This requires a specific bidirectional charger at home, and the car must support the relevant standard.

V2G (Vehicle-to-Grid) goes further again. The car can send power back to the electricity grid, not just your home. You might export stored energy during high-price peak periods and recharge during cheap overnight rates, effectively using the car as a grid-scale storage device. V2G has been legally permitted in Australia since late 2024. Commercial V2G programs are emerging but still limited.

Most EVs with V2L don’t support V2H or V2G. Don’t assume capability based on one feature.

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How V2H works technically

Standard EV charging is one-directional. Grid AC power converts to DC and flows into the battery pack. Simple.

V2H adds a bidirectional inverter to the loop. The charger unit on your wall includes inverter hardware that can reverse the flow: DC from the car’s battery converts back to AC and feeds your home’s circuits through the consumer mains board.

For this to work safely, the charger must include grid-forming inverter capability and the appropriate safety disconnection equipment. If the grid goes down, the system must isolate from the grid (to protect electricity workers on the lines) while continuing to supply your home. This is the same anti-islanding safety requirement that governs solar inverters under AS/NZS 4777.

The car side of the equation requires that the vehicle support bidirectional DC charging through its charge port. The two main standards used in Australia are CHAdeMO and CCS2. CHAdeMO (used by Nissan Leaf and Mitsubishi Outlander PHEV) has supported bidirectional charging for years. CCS2 bidirectional capability is newer and requires specific car firmware and charger compatibility.

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Which EVs support V2H in Australia?

Available now

Nissan Leaf (40kWh and 62kWh) via CHAdeMO port. The Leaf was the world’s first mass-market V2H-capable EV and has the most mature ecosystem of compatible chargers. It’s an older model now with limited availability as a new purchase in Australia, but many Leafs on the used market support V2H.

Mitsubishi Outlander PHEV via CHAdeMO. A plug-in hybrid SUV with a smaller battery than a pure EV (up to around 20kWh usable), but V2H-capable. Useful for emergency backup even if the storage capacity is more limited.

Kia EV9 Earth AWD ($106,500) is V2H capable with a compatible bidirectional charger. The 99.8kWh battery is the largest of any V2H-capable vehicle currently available in Australia, making it the most capable home backup option.

CCS2 bidirectional: coming soon

The Hyundai IONIQ 5 and Kia EV6 both have bidirectional-capable hardware and CCS2 ports. Full V2H functionality via CCS2 requires compatible charger infrastructure that is currently being deployed. Expect this to become available in 2026. BYD has announced V2H support for upcoming models including the Seal and Sealion 7, though availability and compatible charger details are still being confirmed for Australia.

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Which home chargers support V2H in Australia?

The charger is as important as the car. You can’t do V2H with a standard EV wallbox.

Sigenergy SigenStor systems include an optional 25kW V2H module, the most powerful residential V2H capability available in Australia. The SigenStor SP is single-phase; the SigenStor TP provides three-phase whole-home coverage. These are integrated home energy systems that combine a stationary battery, solar inverter, and V2H charger in one platform.

V2Grid Numbat is an Australian-developed bidirectional EV charger that supports V2H and V2G, compatible with CHAdeMO vehicles initially and CCS2 in development.

FranklinWH aPower supports V2H via its aPower Hub controller and EV charger add-on, compatible with several bidirectional EV models.

The installer matters as much as the hardware. V2H systems are more complex than standard solar or battery installations. Find an accredited electrician with experience in bidirectional systems and check that the charger and car combination you’re buying are confirmed compatible.

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What a V2H system actually costs

A complete V2H-enabled home energy system, including the bidirectional charger, a stationary battery component, installation, and any required electrical switchboard upgrades, typically runs $22,000-$28,000.

That’s more than a standalone home battery. A Tesla Powerwall 3 installed costs around $12,000-$14,000. A BYD HVM 16.6 runs roughly $14,000-$16,000 installed.

The V2H premium buys you a bidirectional interface to your EV’s much larger battery. If you have a 75kWh EV, you’re effectively adding 60+ usable kilowatt-hours of backup storage that you’ve already paid for as part of the car. The combined reserve of a 15kWh stationary battery and a 75kWh EV battery is simply not achievable with any standalone battery at any price.

The economic case is strongest when you’re already planning a home solar and battery installation. Adding V2H capability at that point costs less than retrofitting it later, and you’re paying for an integrated system rather than separate components.

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The battery cycle life question

This is the honest caveat that most V2H marketing glosses over.

EV batteries degrade with every charge-discharge cycle. Manufacturers design them for a certain number of cycles over the vehicle’s life, typically targeting low degradation over 10+ years of normal driving use. V2H adds additional cycles beyond driving use.

Most EV warranties explicitly exclude degradation from V2H or bidirectional charging use. Check your specific vehicle’s warranty terms before assuming you’re covered.

The practical guidance: using V2H for genuine emergency backup during grid outages is low-risk. Most Australian households experience a handful of meaningful outages per year. That adds very few extra cycles.

Using V2H for daily energy arbitrage, cycling the battery from high to low every day to save on electricity bills, is a different matter. At 365 cycles per year, you’re meaningfully shortening the battery’s useful life in a way the warranty doesn’t cover. The economics rarely work out when you account for the accelerated degradation cost.

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Should you get V2H or just buy a home battery?

The honest answer depends on your situation.

Get V2H if:

• You already own or are buying a compatible EV and plan to be in your home for 5+ years.
• You’re designing a new home energy system and can include V2H at the system design stage rather than retrofitting.
• You want backup capacity beyond what any standalone battery provides, especially for three-phase homes.
• Resilience during extended outages is a genuine concern for you.

Stick with a standalone battery if:

• You don’t own a compatible EV yet or aren’t planning to buy one soon.
• You want a simpler installation with a lower upfront cost.
• You’re renting or planning to move within a few years.
• Your main goal is solar self-consumption optimisation rather than backup.

For most households in 2026, a well-chosen stationary battery handles solar storage and backup adequately. V2H makes sense as an upgrade when the stars align: compatible car, home ownership, long-term planning horizon, and genuine backup needs.

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The legal status of V2H and V2G in Australia

V2G has been legally permitted in Australia since late 2024 following amendments to the relevant grid connection standards. V2H, which doesn’t involve export to the grid, follows the existing AS/NZS 4777 standards for grid-connected inverter systems and is legal with a compliant installation.

Your installer must be a Clean Energy Council accredited electrician. The bidirectional charger must be approved for use under Australian standards. A standard EV wallbox installation certificate won’t cover a V2H installation. Make sure your quotes specify the relevant standards compliance.

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Common questions

If my EV is parked during a blackout, will V2H kick in automatically?

Yes, if the system is configured for automatic switchover. A properly installed V2H system can detect grid loss and switch to island mode, drawing from the EV battery and the stationary battery to power the home. You don’t need to be home or manually activate anything. The speed of switchover varies by system.

How long would a 75kWh EV power an average Australian home?

An average Australian household uses around 15-20kWh per day. With 60kWh usable from a 75kWh EV (assuming not charging from empty), you’d get 3-4 days of typical household power. Add a 15kWh stationary battery and solar panels keeping the whole system topped up and an extended outage becomes genuinely manageable.

Does V2H work with solar?

Yes, and it’s the optimal combination. Solar charges both the stationary battery and the EV during the day. V2H lets the EV contribute back to the home at night or during a grid outage. The Sigenergy SigenStor platform integrates all three components as a single system. See our EV charger comparison for compatible hardware.

Can I use V2H with a Tesla?

Not currently. Tesla vehicles don’t support bidirectional charging in Australia in 2026. Tesla has announced Powerwall and EV integration for future models but hasn’t confirmed timelines. If V2H is a priority and you’re buying an EV for that purpose, choose from the compatible vehicles listed above.

Is the V2H cost eligible for any Australian rebates?

State government rebates and VPP (virtual power plant) programs sometimes cover bidirectional charger components. These programs change frequently. Check the electric vehicle rebates page for current national and state programs, and ask your installer about current VPP incentives that may offset installation costs.