Tesla Wall Connector (Gen 3) vs myenergi zappi

The Tesla Wall Connector (Gen 3) has a £209 lower recorded unit or package price: £475 against £684 for the myenergi zappi.

Using each product's recorded installation basis, the Tesla Wall Connector (Gen 3) is £875–£1,075 installed and the myenergi zappi is £1,084–£1,284 installed. These are planning ranges, not quotes; cable routes and electrical remedial work can change the result.

Both the Tesla Wall Connector (Gen 3) (7.4kW / 22kW) and myenergi zappi (7kW / 22kW) support three-phase charging, offering up to 22kW on a three-phase supply. On a standard UK single-phase supply, both deliver around 7kW — more than enough for overnight charging.

On a standard UK single-phase supply, both will charge a Tesla Model 3 Long Range (75kWh battery) from 20% to 80% in approximately 5–6 hours overnight. Even a Tesla Model Y with its larger battery completes a typical daily top-up well within an overnight window. For the vast majority of UK Tesla owners, single-phase 7kW charging is more than sufficient — you'll wake up to a full battery every morning.

The Tesla Wall Connector (Gen 3) offers: Tesla app integration, Scheduled charging, Power sharing (up to 6 units), Wi-Fi connected, OTA updates. The myenergi zappi offers: Solar diverting (Fast / Eco / Eco+ modes), On-unit LCD screen and buttons, myenergi app, Octopus Intelligent Go and OVO Charge Anytime integration, Agile price-based scheduling, Dynamic load balancing (Grid Limit), Wi-Fi + Ethernet, no hub required, myenergi ecosystem (eddi, libbi, harvi), PEN fault detection (zapsafe).

Breaking these down by category: for connectivity, the Tesla Wall Connector (Gen 3) uses Wi-Fi connected, while the myenergi zappi uses Wi-Fi + Ethernet, no hub required. For energy management, the Tesla Wall Connector (Gen 3) provides Power sharing (up to 6 units), compared to the myenergi zappi's Dynamic load balancing (Grid Limit).

The myenergi zappi supports solar integration, allowing you to divert surplus solar energy to charge your Tesla. The Tesla Wall Connector (Gen 3) does not have built-in solar diverting. If you have solar panels (or plan to install them), this is a significant advantage for the myenergi zappi.

The myenergi zappi uses a CT clamp on your meter tails to measure real-time surplus generation, enabling its Eco and Eco+ modes. This means it can dynamically adjust the charge rate to match your available solar surplus.

The myenergi zappi integrates with smart energy tariffs, automatically charging at the cheapest off-peak rates. The Tesla Wall Connector (Gen 3) doesn't have built-in smart tariff integration — you'd need to set manual charging schedules or rely on your car's built-in timer.

The myenergi zappi supports compatible Octopus scheduling through its supplier integration.

The Tesla Wall Connector (Gen 3) comes with a 4 years warranty, while the myenergi zappi offers 3 years (5 with £120 extension). The Tesla Wall Connector (Gen 3) offers 1 year more coverage.

For weatherproofing, the Tesla Wall Connector (Gen 3) is rated IP44 (indoor/outdoor), while the myenergi zappi is rated IP65 + IK10. Any rating of IP54 or above is suitable for a UK outdoor installation.