Gridly
Overview
The myenergi Zappi v2.1 22kW is the three-phase version of Australia’s best-established solar EV charger. It delivers the same Eco/Eco+ solar diversion modes that made the 7kW model popular, at a price that undercuts the Fronius Wattpilot by $155 - with a better warranty (3yr vs 2yr) and a better IP rating (IP65 vs IP55).
What it sacrifices compared to the Wattpilot: OCPP and load management. For households where those features matter, the Wattpilot or Sigenergy 22kW are the alternatives.
Three-phase: who needs it
On single-phase supply, both the Zappi 7kW and 22kW deliver 7.4kW - identical in practice. The 22kW model earns its premium only on three-phase supply:
| Vehicle OBC | Single-phase | Three-phase |
|---|---|---|
| 7.4kW (BYD Atto 3, Seal) | 7.4kW | 7.4kW |
| 11kW (Tesla, IONIQ 5/6, VW ID.4) | 7.4kW | 11kW |
| 22kW (some commercial EVs) | 7.4kW | 22kW |
For a Tesla Model 3/Y owner with three-phase supply, the Zappi 22kW charges at 11kW - adding approximately 540km of range overnight versus 370km on single-phase. For high-mileage households or those who regularly return home with a depleted battery, the additional speed matters.
Solar modes on three-phase
The Eco and Eco+ solar modes from the 7kW Zappi carry over identically to the 22kW model. The CT clamp monitors whole-home energy flow at the switchboard, and the charger dynamically adjusts output (from the minimum 6A/1.4kW threshold up to the maximum available) based on solar surplus.
On three-phase, the minimum charge current (6A) translates to 1.4kW draw - the same as single-phase. The maximum scales to the full 22kW (or 11kW with an 11kW OBC vehicle). For solar-optimised charging, the control band is wider on three-phase - more fine-grained modulation of charge rate to match varying solar generation.
IP65 vs competitors
IP65 is better than the Fronius Wattpilot’s IP55 and the Wallbox Pulsar Plus’s IP54. For outdoor installations in exposed positions (carport wall, exterior house wall), IP65 provides better protection against direct rain.
Socket-only: the practical management
Like the Fronius Wattpilot, the Zappi 22kW is socket-only. Most users purchase a 6m Mode 3 cable and leave it permanently attached to the charger. The cable stores in a loop or on a cable holder mounted below the unit.
For households with two vehicles that both need to use the same charger, a socket-based charger is actually more flexible than tethered - the cable can be unplugged from the car and used with the second vehicle.
Who should buy the Zappi v2.1 22kW
Best for:
- Three-phase households wanting the Zappi’s proven solar diversion without OCPP complexity
- myenergi ecosystem builders - pairs with Eddi and Libbi for whole-home solar self-consumption
- Buyers who want the best-warranted (3yr) solar 22kW charger in Australia
- Non-Fronius solar households where the Wattpilot’s native integration advantage doesn’t apply
Skip if:
- Single-phase supply - the Zappi 7kW at $295 less is the same performance with a tethered cable
- OCPP is needed - Fronius Wattpilot or Sigenergy 22kW
- Load management is required - Fronius Wattpilot or Sigenergy 22kW