Merge Energy

The most affordable storage for solar.

We're developing a new approach to vehicle-to-grid (V2G) that lets everyday EV owners save money by using their car's battery to power their home and support the energy grid - without the cost and risk of today's solutions.

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The cheapest way to add storage to solar

Whether it's your first storage or extra capacity, an EV stores more than two to three times the energy of most home batteries.

Avoid costly V2G chargers

V2G-Key will be available at a fraction of the cost of today's bidirectional chargers.

▶ V2G Without Buying a New Charger: Merge Energy V2G Key — with Electrify This

How V2G-Key works

Turn your solar inverter into a bidirectional charger.

V2G-Key's patent-pending approach allows you to charge your EV via AC and discharge it via DC into your inverter's solar inputs. We call it Synthetic Solar™: to your inverter, your EV looks just like another solar array.

V2G-Key with built-in charger mounted on a garage wall, connected to a solar inverter and an electric car
  1. V2G-Key WallboxInstall new, or replace your existing AC charger using the same wiring and circuit.
  2. AC/DC Charge DirectorCharge via AC, discharge via DC in one plug.
  3. Synthetic SolarV2G-Key makes your EV look like another solar panel.
  4. PV inputs of any solar or hybrid inverterWorks with the inverter already on your wall. No new grid connection required.
  5. V2G-Key AppSet limits, schedules and overrides from your phone.
  6. V2G-Key Warranty BackstopIndependent warranty backstop cover, built in.

Warranty backstop

Peace of mind built in.

Every V2G-Key comes with independent warranty backstop cover, arranged through our specialist insurance partner and underwritten by a leading global insurer.

If your EV battery or solar inverter manufacturer denies an otherwise valid warranty claim because of V2G participation, you're covered.

Frequently asked questions

Who is V2G-Key built for?

V2G-Key is built for anyone with solar, from homes to fleets: solar households, commercial fleets, rental fleets, car sharing, EV dealerships and farms with solar.

Do I need a spare input on my inverter?

No. V2G-Key has a smart switching function, so it can share an input that's already connected to your solar panels.

When and where will V2G-Key be available?

V2G-Key will be available Australia-wide, with a target launch date of Q3 2027. Merge Energy is also exploring expansion into overseas markets, including the USA and Europe.

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Sign up to occasionally receive updates on V2G-Key trials, pre-sales and ways to get involved.

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