myenergi Zappi EV charger review: specs, solar modes and is it worth it?

What will EV charger installation cost?

The Zappi in the box: what you get for around $1,500

The Zappi v2.1 is a single hardware unit that operates at 7kW on a single-phase supply or up to 22kW on three-phase. Those aren't two different products. One unit, one model code (the '2H22' prefix on AU SKUs), two outputs depending on what your home's wiring can deliver.1myenergi.comView source The buying decision is which variant to order, not which power tier.

The CT clamp ships in the box, not as an add-on. A single-phase install gets one CT clamp with a 5m cable; a three-phase install gets three.1myenergi.comView source Your licensed electrician clips it onto the main supply cable at your switchboard during the install. That small piece of hardware is the entire mechanism for solar diversion. It reads your household energy flow in real time: how much you're importing from the grid, how much solar you're generating, and how much spare capacity is available to send to the car.

For most driveways and garages, the tethered variant's 6.5m Type 2 cable reaches the car without issue. If your parking bay is more than 6.5m from the planned install point, the untethered version with a longer cable is the cleaner option. Both run on the same v2.1 multiphase hardware.1myenergi.comView source The only variant decision is really about cable length.

Connectivity is built in: WiFi and Ethernet are on-board, so there's no separate hub or bridge device to buy.1myenergi.comView source The Zappi connects directly to your home network and is managed via the myenergi app.

Zappi v2.1 full specs: IP65, OCPP 1.6J and what changed since 2022

The table below covers the key specs for an Australian install. A few numbers stand out: IP65 means it's rated for outdoor use, driveways and carports included. The OCPP row fixes an old 2022 datasheet that said No. The current firmware adds it. The temperature row matters for QLD and WA homes. For a plain-English take on OCPP, see the OCPP explained guide.

OCPP works via the myenergi cloud, not the device directly

The Zappi talks to a cloud service, not to the charger directly. Commands go to the myenergi cloud; the cloud sends them on. It's not native OCPP on the device itself. That matters if you're picking a charger for a fleet platform or a smart-home controller. The platform needs to support myenergi's cloud, not just raw OCPP 1.6J. What OCPP means for smart charging covers the difference in plain terms.

The three charging modes, and which one fits your life

The CT clamp feeds live energy data into whatever mode you've set. The Zappi has three modes: Fast, Eco, and Eco+. The right one either cuts your power bill or gets the car ready by morning.6myenergi.comView source

Fast mode charges at full power no matter what the solar is doing. It pulls from the grid like any standard charger. Use it when you need the car full and you don't care where the power comes from. It's the fallback that means you're never stuck.

Eco mode watches your solar surplus via the CT clamp. It sends all the surplus to the car first. When solar drops below 1.4kW (6A at 230V), it tops up from the grid to hold that floor. That 1.4kW minimum is an EV protocol rule, not a Zappi quirk.7myenergi.comView source The car never pauses. On a sunny day, Eco is the commuter's setting. Solar does most of the work; the grid fills the rest.

Eco+ mode is solar only. It charges when surplus is above 1.4kW and stops when it drops below. No grid draw.6myenergi.comView source The rate follows the sun: 3kW of surplus charges at 3kW, 6kW at 6kW. A good summer day can fill the car from 100% self-generated solar.2zecar.comView source The catch: the car may not be fully charged if sun was scarce.

Eco vs Eco+ is one question: how much do you need the car ready on time? If you commute every day, Eco is safer. If your schedule is flexible and you want zero grid use, Eco+ does it.

Is the Zappi worth it with solar?

Yes, if you have solar. The Zappi reads energy flow at the meter, not at the inverter. The CT clamp clips to the main supply cable. It doesn't need to talk to your inverter's software or match a brand. SolarEdge, Fronius, Goodwe, any string inverter: they all work the same way.1myenergi.comView source 6myenergi.comView source

That's what makes the price gap matter. The Tesla Wall Connector Gen 3 costs around $800 AUD as at June 2026, well under the Zappi.2zecar.comView source But to use solar-aware charging with the Tesla, you need a Powerwall battery. The Wall Connector can't divert solar on its own. The Zappi can. No battery, no inverter tie-in. That's why it costs more for solar homes.

One caveat for AU installs: the Zappi's rated max operating temperature is 40 degrees Celsius.2zecar.comView source In QLD and WA, summer air temps can pass 40 degrees. A unit on a bare west-facing wall in direct sun is worth flagging with your installer. In a shaded garage, carport, or under eaves, it's rarely a problem. Talk to your electrician about the mounting spot if you're in a hot climate.

No solar? Fast mode charges fine. But a cheaper charger does the same job. The Zappi's premium only pays back when the CT clamp has solar surplus to work with.

Installing the Zappi is a licensed electrician job

In Australia, EV charger installs fall under the Wiring Rules (AS/NZS 3000). A licensed electrician must do all the fixed wiring. The CT clamp goes in at your switchboard. It can't be fitted by the owner.

The job covers mounting the unit, running cable from the switchboard, fitting the CT clamp, and setting up the myenergi app. The electrician will also check that your switchboard can handle the load before starting.

See installation costs in your suburb for a live estimate based on real AU pricing data. The Zappi hardware cost is separate; it's not included in the install quote.

What to check before you order

Single-phase or three-phase. This decides your output. The Zappi picks 7kW on single-phase or up to 22kW on three-phase, based on what your home is wired for. Order without knowing that and you may pay for power you can't use. An electrician can check your supply in minutes. See the 7kW vs 22kW guide for the full breakdown.

Cable run length. Measure from the wall mount to where the car parks. The tethered Zappi ships with a 6.5m cable. If the run is longer, get the untethered version and pair it with a longer cable. Your installer can sometimes shift the unit to cut the run down.

Register to activate the warranty. The 3-year warranty needs a product registration from the date of purchase.5myenergi.comView source Skip it and you're on statutory minimums. It takes a few minutes on the myenergi app after install.

The Zappi pays off for solar homes; a basic charger covers everyone else

The Zappi earns its premium in one case: a solar home that wants to charge from its own generation. Any solar system works. No battery, no inverter tie-in needed. Eco+ fills the car from 100% solar on a good day. Eco keeps it charged when the sun's patchy.6myenergi.comView source

If you're choosing between the Zappi and a cheaper charger, ask how many charging sessions happen during daylight. The more of them land in solar hours, the faster the price gap closes. An electrician can confirm your supply type, plan the CT clamp location, and give you a firm install price.