Cord Zero vs Enphase IQ EV Charger 2

£577 and an ecosystem question

The Cord Zero costs £473. The Enphase IQ EV Charger 2 costs £1,050. Both deliver 7.4 kW on a single-phase supply. Both are tethered Type 2 units with built-in safety protection. The £577 gap is not buying you more power — it is buying you a place inside Enphase's solar-and-battery ecosystem. Whether that place is worth occupying depends entirely on what is already on your roof.

• Cord Zero — £473, dual Wi-Fi + 4G connectivity, broad UK tariff integration, OZEV-approved. The pragmatic all-rounder.
• Enphase IQ EV Charger 2 — £1,050, solar-surplus charging from 1.38 kW, single-app control with Enphase microinverters and IQ Battery. The ecosystem play.

Total cost is the real gap

Unit price tells only part of the story. The Cord Zero's built-in RCD, PEN fault detection, SPD, and overvoltage protection typically save £150–£250 on install labour, bringing total fitted cost to roughly £650–£750. The Enphase quotes £900–£1,300 for installation — partly because it expects an Enphase IQ Gateway on site for full functionality. That puts total outlay somewhere between £1,950 and £2,350.

So the gap at the wall is not £577. It is closer to £1,200–£1,600 once the sparks have packed up and left.

Grant eligibility widens it further. The Cord Zero is OZEV-approved; eligible renters and flat owners can knock £500 off, and since the unit costs £473, the grant covers it outright and chips into the install. The Enphase's OZEV status is not confirmed — the £500 may not be available at all.

The Enphase case: solar surplus done properly

Credit where it is due. The Enphase IQ EV Charger 2 can chase solar surplus from as little as 1.38 kW of excess PV, adjusting in 1 A increments roughly every 30 seconds. Paired with Enphase microinverters and an IQ Battery, it lets AI-led source selection decide the cheapest electron — solar, battery, or grid — through a single app. The 7.5-metre cable is among the longest on the UK market. The MID-certified Class-B meter gives ±1 % accuracy. The IP55 / IK10 enclosure and five-year warranty are robust.

None of that is trivial engineering. But it is engineering aimed at a narrow audience: homeowners who have already committed to an Enphase energy system. Without the gateway and compatible inverters, the charger loses its distinguishing behaviour and becomes a £1,050 box doing a £473 job.

If you have solar panels but not Enphase kit, the myenergi Zappi GLO at £599 offers dedicated Eco+ surplus-only charging without locking you into one inverter brand. Readers weighing that option will find more detail in the Zappi GLO vs Enphase comparison.

Tariffs and connectivity — where the Cord Zero earns its keep

The Cord Zero integrates with Octopus Go, Intelligent Octopus Go, OVO Charge Anytime, British Gas EV Power, and EDF GoElectric. Schedule overnight at 8 p or 6.99 p per kWh and the charger handles it. The Enphase has no direct API link to any half-hourly UK tariff — no Agile, no Intelligent Go. On a variable tariff, it cannot chase cheap slots the way an Ohme Home Pro or even the Cord Zero can.

Connectivity is another quiet advantage. The Cord Zero's dual Wi-Fi + 4G with automatic failover means the schedule runs even when the router drops. The Enphase offers Wi-Fi, Bluetooth, and Ethernet — all solid, but all dependent on your home network staying up.

The verdict

Buy the Cord Zero if:

• You want the lowest total installed cost for a smart, tariff-aware 7.4 kW charger
• You value 4G failover and do not want to worry about Wi-Fi reach to the garage
• You are OZEV-eligible and want a grant-approved unit

Buy the Enphase IQ EV Charger 2 if:

• You already own Enphase microinverters and an IQ Battery and want one app for everything
• Fine-grained solar-surplus charging from 1.38 kW matters to your daily routine
• You are comfortable with a total outlay north of £2,000 for ecosystem cohesion

For the vast majority of UK buyers — those without an Enphase system already bolted to the house — the Cord Zero is the more rational purchase. It charges at the same rate, talks to more tariffs, costs less to buy, costs less to install, and qualifies for the grant. The Enphase is a good charger inside its own ecosystem. Outside it, the maths do not add up.