Ohme Home Pro vs Enphase IQ EV Charger 2: £244 for an ecosystem lock-in

The £244 question — and who should pay it

The Ohme Home Pro costs £535. The Enphase IQ EV Charger 2 costs £779. Both deliver 7.4 kW on a single phase. Both are tethered Type 2. Both can chase solar surplus. The £244 gap between them is not a quality premium — it is the price of belonging to Enphase's ecosystem.

• Ohme Home Pro — £535, tariff-aware, OZEV-approved, works with any solar setup and every major smart tariff.
• Enphase IQ EV Charger 2 — £779, purpose-built as the fourth node in an Enphase microinverter-and-battery system. Outside that ecosystem, an expensive 7.4 kW charger with a long cable.

Smart tariffs: the Ohme's territory, the Enphase's blind spot

The Ohme Home Pro has direct API integration with Octopus Intelligent Go, Octopus Agile, OVO Charge Anytime, and British Gas Electric Drivers. It is Octopus's officially recommended charger for Intelligent Go — the one that gets your Tesla charging at 7p/kWh across a six-hour overnight window, with smart slot allocation handled automatically.

The Enphase has none of this. No Octopus integration, no half-hourly tariff chasing, no supplier API at all. It supports OCPP 2.0.1 and open APIs, which may matter to a future energy management platform, but today, in the UK, it cannot do what the Ohme does at midnight. If you are on any time-of-use tariff — and if you drive an EV, you should be — this is not a marginal difference. It is the difference between the charger earning back its cost and the charger sitting idle while you pay peak rates because you forgot to set a timer.

On Octopus Go at 8.5p/kWh, the Ohme's scheduled charging saves roughly £400–500 a year over daytime grid rates for a typical commuter. The Enphase, set to a manual schedule, can hit the same window — but it cannot follow Agile's half-hourly price movements, and it cannot participate in Intelligent Go's smart dispatching. The Ohme can. That alone settles this comparison for the majority of buyers.

Solar diverting: where the Enphase earns a hearing

Both chargers divert solar surplus. The Enphase does it with more precision — adjusting in 1A increments roughly every 30 seconds, starting from as little as 1.38 kW of excess PV. Paired with Enphase IQ microinverters and an IQ Battery, it draws on an AI-led source-selection system that arbitrates between solar, battery, and grid in a single app. The MID-certified meter (±1% accuracy) means the energy figures are bankable, not estimates.

The Ohme's solar diverting is less granular but functional, and it does not require you to be locked into one inverter brand. If you have a SolarEdge, GivEnergy, or any other system, the Ohme works. The Enphase charger requires an Enphase IQ Gateway on site for full ecosystem behaviour — without it, you are paying £779 for a charger that has lost its distinguishing feature.

For households already running Enphase panels and an IQ Battery, the single-pane-of-glass appeal is real. Seeing generation, storage, home consumption, and EV charging in one app, with intelligent arbitrage between them, is tidy. Whether that tidiness is worth £244 more than an Ohme — which handles solar *and* tariffs — depends on how much you value app consolidation over actual running-cost savings.

If your solar setup is not Enphase, the myenergi Zappi GLO at £750 is a stronger solar-first charger with a longer track record in PV diversion, and our Ohme vs Zappi GLO comparison covers that pairing in detail.

Installation cost and the OZEV grant

The Ohme Home Pro is OZEV-approved. Eligible renters and flat owners can claim the £500 grant, which nearly covers the £535 unit price outright and contributes to install costs too. Standard installation runs £400–500 on top.

The Enphase's OZEV approval is not confirmed. Without the grant, you are paying £779 for the unit plus £900–£1,300 for installation — a total approaching £2,000. The Enphase is also heavier at 11 kg (the Ohme is around 3.5 kg), which is not a daily concern but does affect where and how it mounts.

The Enphase does offer a five-year warranty against the Ohme's three, and its IP55 / IK10 rating with a -40°C to +55°C operating range is built for harsher conditions than most UK driveways will ever provide. The 7.5-metre cable is a practical advantage over the Ohme's standard 5-metre lead — though Ohme offers an 8-metre option at extra cost.

Which to buy

Buy the Ohme Home Pro if:

• You use or plan to use a smart tariff — Intelligent Go, Agile, or any supplier with API support
• You want solar diverting without being tied to one inverter brand
• You are eligible for the £500 OZEV grant and want to keep total outlay low

Buy the Enphase IQ EV Charger 2 if:

• You already run Enphase microinverters and an IQ Battery and want one app for the whole system
• You value the five-year warranty and MID-certified metering
• You do not rely on a half-hourly tariff for running-cost savings

For most UK EV owners, the Ohme Home Pro is the right charger here. It costs £244 less, it talks to your energy supplier, and it handles solar well enough. The Enphase is a fine piece of hardware solving a narrower problem — and if that problem is yours, it solves it well. But paying £779 for a 7.4 kW charger that cannot chase a cheap half-hour on Agile is a hard sell when the alternative does exactly that for £535.