Zaptec Go 2 vs Enphase IQ EV Charger 2

> V2G boundary: A “V2G-ready” label or ISO 15118 support does not by itself provide bidirectional power conversion, export approval or a live energy service. Confirm the compatible car, genuinely bidirectional hardware, certified complete system, installer, service and network approval before assigning value to the claim. Read the UK V2G explainer.

£412 and a fundamental question about your roof

These two chargers occupy the same price tier only if you squint. The Zaptec Go 2 costs £638 and is a forward-looking, lightweight box with V2G-readiness label and free 4G. The Enphase IQ EV Charger 2 costs £1,050 — £412 more — and exists to serve one audience: households already deep in the Enphase solar ecosystem. If that describes you, read on. If it does not, the decision is already over.

• Zaptec Go 2 — £638, untethered, V2G-ready, 7.4kW single-phase or 22kW three-phase. A charger that earns its keep today and positions you for what comes next.
• Enphase IQ EV Charger 2 — £1,050, tethered with a 7.5m cable, 7.4kW single-phase only. A charger that completes an Enphase system — and does little for anyone outside one.

What the Enphase's £412 premium actually buys

Strip away the branding and both chargers deliver 7.4kW on a standard UK single-phase supply. Both carry five-year warranties. Both have MID-certified metering. Both support OCPP. The Enphase adds a 7.5-metre tethered cable, IP55 / IK10 build quality, and — here is the point — solar-surplus charging from as little as 1.38kW of excess PV, adjusting in 1A increments roughly every 30 seconds.

That solar chase is impressive. But it only works properly within the Enphase ecosystem: IQ microinverters, an IQ Gateway on site, ideally an IQ Battery. With the full stack, the Enphase app orchestrates solar, battery and car as one system. Without it, you have a £1,050 charger that cannot talk to Octopus Intelligent Go, Octopus Agile, or any other half-hourly UK tariff. No tariff API integration at all. For a charger at this price, that is a hard omission.

The Zaptec, by contrast, costs £412 less and brings subscription-free 4G, OCPP 1.6J for third-party energy management, and the distinction of being an AC charger marketed as V2G-ready because it publishes ISO 15118 communication support. It does not chase solar surplus natively — but if solar diversion is the goal and you are not locked into Enphase hardware, the myenergi Zappi GLO does that job for £599 with a far larger UK installer network.

The Zaptec's V2G bet versus the Enphase's ecosystem lock-in

Both chargers ask you to believe in a future that has not quite arrived. The Zaptec bets on vehicle-to-grid — a technology still emerging in the UK, with limited car support and no settled commercial framework. The Enphase bets on single-vendor energy management, where your inverters, battery, and charger all speak the same language.

The difference: the Zaptec's bet costs £638 and its everyday features — MID meter, 4G, OCPP, auto-switching between single- and three-phase — justify the price regardless of whether V2G materialises within the charger's lifetime. The Enphase's bet costs £1,050 and its everyday features, absent the ecosystem, do not. A standalone Enphase charger is a 7.4kW unit with no tariff smarts and no solar diversion unless the rest of the Enphase stack is present. That is a lot of money for a charger that, on its own, does less than an Ohme Home Pro at £539.

There is also the grant question. The Zaptec Go 2 is OZEV-approved; eligible renters and flat owners can claim the £500 grant against it. The Enphase's OZEV approval is not confirmed on the current list. For a grant-eligible buyer, the Zaptec's effective hardware cost drops dramatically — the £500 covers most of the £638 unit price and chips into install costs too. The Enphase offers no such certainty.

Install costs widen the gap further

Typical install for the Zaptec runs £400–£600. The Enphase quotes £900–£1,300, partly because it often requires an IQ Gateway and integration work with existing Enphase hardware. Total outlay — charger plus install — could be £1,038–£1,238 for the Zaptec versus £1,950–£2,350 for the Enphase. That is a gap of roughly £700–£1,100 all-in. Even for a committed Enphase household, that is a number worth sitting with.

If you are weighing the Zaptec against something closer in price and philosophy, the Easee One at £489 does the same daily job for £149 less but without V2G readiness — that comparison is covered separately.

The verdict

Buy the Zaptec Go 2 if:

• You want a future-proof charger with V2G-readiness label at a reasonable price
• You value subscription-free 4G and MID-certified metering today, not just tomorrow
• You have or may upgrade to a three-phase supply and want up to 22kW

Buy the Enphase IQ EV Charger 2 if:

• You already run Enphase IQ microinverters and an IQ Battery and want single-app control
• The 1.38kW solar-surplus threshold and 1A granularity matter to your generation profile
• You are willing to pay a significant premium for ecosystem cohesion over standalone capability

For most buyers — including most solar households — the Zaptec Go 2 is the better purchase. It costs £412 less, installs for less, qualifies for the OZEV grant, and does not lock you into a single vendor's hardware stack. The Enphase is a fine charger inside the Enphase world. Outside it, the maths do not add up.