Tesla Wall Connector (Gen 3) vs myenergi Zappi GLO

The £124 between a charger and a solar computer

The Tesla Wall Connector costs £475. The myenergi Zappi GLO costs £599 — £124 more. That gap buys exactly one thing: the ability to route surplus solar generation into your car. If you have panels on the roof, it is a bargain. If you do not, it is a surcharge for hardware you will never use.

• Tesla Wall Connector — £475, 7.3-metre cable, Tesla app scheduling. The default for any Tesla owner without solar.
• myenergi Zappi GLO — £599, Eco+ solar diverting, IP65 weatherproofing, OZEV-approved. The default if your roof is already earning its keep.

What the Zappi GLO's £124 actually buys

Three charging modes — Fast, Eco, and Eco+ — and the last two are the point. Eco+ draws power only from surplus solar generation: if the panels are producing 2 kW above household demand, the car gets 2 kW and nothing from the grid. Eco blends grid and solar to keep a minimum charge rate. Fast ignores the panels entirely and pulls full power.

The Tesla Wall Connector has no awareness of solar at all. It charges when you tell it to, at whatever rate the grid supplies. You can bodge solar diverting with third-party kit, but the Zappi does it natively, and its integration with the wider myenergi ecosystem — the eddi hot-water diverter, the libbi battery — means surplus generation can be routed to whichever load needs it most. For a household already invested in myenergi hardware, the Zappi GLO is the obvious next piece.

Without panels, none of this matters. You are paying £124 for a solar computer with nothing to compute.

The Tesla Wall Connector's quieter advantages

At £475, the Tesla Wall Connector is cheaper than most third-party smart chargers — and it is the official one. The 7.3-metre tethered cable is the longest you will find at this price; the Zappi GLO's is 6.5 metres. For driveways where the consumer unit sits on the far side of the house, that 0.8-metre difference can save a cable run.

The Tesla app handles scheduling, energy history, and power sharing across up to six Wall Connectors on a single circuit. Over-the-air updates have added features since launch and will continue to. The four-year warranty is a year longer than the Zappi's three.

Two caveats. First, IP44 versus the Zappi's IP65 — on a fully exposed wall with no overhang, the Zappi is the more weatherproof unit. Second, the Tesla Wall Connector is not OZEV-approved. For eligible renters and flat owners, the £500 OZEV grant applies to the Zappi GLO but not to the Tesla. That grant covers the Zappi's £599 unit price outright and contributes toward install costs too — a substantial difference in out-of-pocket spend.

Smart tariffs: neither charger's strongest suit

If your priority is chasing cheap half-hour slots on Octopus Agile, neither of these is the right pick. The Ohme Home Pro at £539 tracks variable rates automatically; the Tesla Wall Connector sets a fixed schedule and sticks to it, and the Zappi GLO's tariff support is competent but less granular than the Ohme's.

On fixed off-peak tariffs — Octopus Go at 8.5p/kWh between 00:30 and 05:30, or EDF GoElectric at 6.99p/kWh between 23:00 and 06:00 — both chargers handle a timed schedule without trouble. The difference only emerges on variable or intelligent tariffs. On Octopus Intelligent Go, the Ohme negotiates extra off-peak slots that the Zappi does not receive. If smart-tariff optimisation is the main draw, the Tesla Wall Connector vs Ohme Home Pro comparison is the more useful page.

The verdict

Buy the Tesla Wall Connector if:

• You have no solar panels and no plans to install them
• You want the longest cable (7.3 m) and the lowest price (£475) in a single package
• You own a Tesla and prefer everything in one app with a four-year warranty

Buy the myenergi Zappi GLO if:

• You have solar panels — Eco+ mode is the entire reason this charger exists
• You are eligible for the £500 OZEV grant, which covers the unit price and chips into the install
• You want IP65 weatherproofing for a fully exposed mounting position

The decision is binary. Panels on the roof: Zappi GLO. No panels: Tesla Wall Connector. The £124 gap is not about build quality or smart features or brand loyalty. It is about whether your house generates electricity. If it does, the Zappi earns that premium back in free kilometres. If it does not, save the money.