Ohme Home Pro vs GivEnergy EV Charger

The £95 question: tariff brains or battery plumbing?

These two chargers occupy different niches dressed in similar specs. The Ohme Home Pro costs £539 and exists to squeeze every penny from your electricity tariff. The GivEnergy EV Charger costs £444 and exists to move stored energy from a home battery into your car. Strip away those defining tricks and you have two tethered, single-phase, 5-metre-cable, IP65, three-year-warranty boxes. The £95 between them buys a fundamentally different approach to cheap charging.

• Ohme Home Pro — talks directly to your energy supplier's API. Set it, forget it, pay less.
• GivEnergy EV Charger — draws from a home battery. Useful if you have one. Ordinary if you don't.

Why the Ohme's tariff integration matters

The Ohme connects to Octopus and British Gas via live API — not a timer, not a schedule, but a direct data feed. On Octopus Intelligent Go, the charger is Octopus's own recommended hardware: the supplier pushes charging into 8p/kWh half-hour slots overnight, and the Ohme follows without you touching the app. On Octopus Agile, where rates shift every 30 minutes, the Ohme chases the cheapest windows automatically. A schedule-only charger — which is what the GivEnergy is — cannot do this. It charges when you tell it to charge, and if rates spike or shift, it carries on regardless.

The Ohme also ships with a built-in 4G SIM, active for three years. If your charger sits at the far end of the drive, beyond the Wi-Fi's reach, this is not a convenience — it is the difference between a smart charger and a dumb one mounted in the wrong place. The GivEnergy relies on Wi-Fi alone.

When the GivEnergy earns its keep

The GivEnergy's party trick is battery-to-EV charging. If you own a GivEnergy home battery — or a compatible third-party unit — the charger can pull stored energy into the car. Buy cheap overnight electricity at, say, 8p/kWh on Octopus Go, fill the battery, then drip it into the car whenever suits you. Most chargers can divert live solar; few can tap a battery. That distinction is real and, for the right household, valuable.

The catch is obvious: without a home battery, this feature does nothing. And a GivEnergy battery is a several-thousand-pound investment in its own right. If you already have one — or plan to install one — the GivEnergy EV Charger slots neatly into the monitoring portal and gives you whole-home energy visibility. If you don't, you're paying £444 for a charger whose app is basic, whose tariff handling is schedule-only, and whose 7kW output is fractionally below the 7.4kW most rivals deliver.

For solar owners without a battery, the Ohme Home Pro offers built-in solar diverting too — no extra CT clamp needed. And if the solar angle is the primary concern, the Zappi GLO vs GivEnergy comparison covers that ground more thoroughly.

The app and the everyday experience

The GivEnergy portal is designed around whole-home energy flows — generation, storage, consumption, export. It is genuinely useful if you are managing a battery ecosystem. As a standalone EV-charging app, though, it is sparse. No per-session cost breakdowns, no live tariff data, no colour display on the unit itself.

The Ohme app, by contrast, was built for EV charging first. Per-session cost tracking, tariff visualisation, charge scheduling with supplier-aware logic. The colour display on the front of the unit confirms status at a glance. For someone who simply wants to plug in and know the charger is doing the cheapest thing possible, the Ohme's software is considerably more polished.

Both chargers carry a three-year warranty. Both are OZEV-approved, so eligible renters and flat owners can claim the £500 grant — which, at £444, covers the GivEnergy's unit price outright and contributes to install costs. At £539, the grant still knocks the Ohme down to £39 for the unit before installation.

Which to buy

Buy the Ohme Home Pro if:

• You are on, or switching to, a smart tariff — especially Intelligent Go or Agile
• You want automated rate-chasing without managing schedules yourself
• Your charger location is beyond reliable Wi-Fi range (the built-in 4G SIM solves this)

Buy the GivEnergy EV Charger if:

• You already own a GivEnergy or compatible home battery
• Whole-home energy management through a single portal matters to you
• You want the cheapest tethered charger that integrates with an existing battery setup

For most buyers — those without a home battery, choosing a charger on its own merits — the Ohme Home Pro is the stronger pick. The £95 premium buys tariff intelligence that pays for itself quietly, month after month. The GivEnergy is a specialist tool: effective in the right system, unremarkable outside it. If you don't have a battery and £444 is the budget, the Rolec EVO at £356 or the VCHRGD Seven Pro at £430 deserve a look before the GivEnergy does.