Ohme Home Pro vs GivEnergy EV Charger: tariff brain or battery brain?

Tariff brain or battery brain?

Fifty-seven pounds separates these two, and the money isn't the point. The Ohme Home Pro at £535 and the GivEnergy EV Charger at £478 are both 7kW-class tethered units with solar diversion and decent apps, but they're built around different ideas of where your cheap electricity comes from. One talks to your energy supplier. The other talks to your home battery.

The shortest version:

• Ohme Home Pro — the charger that reads your tariff. Direct API links to Octopus, OVO and British Gas; chases half-hourly pricing without your input.
• GivEnergy EV Charger — the charger that reads your battery. Pulls stored overnight-cheap electricity from a home battery into the car. Unusual, and useful in the right house.

Is the Ohme's £57 premium worth it?

Only if you're on — or heading to — a variable tariff. The Ohme Home Pro has direct API integration with Octopus and is officially recommended for Octopus Intelligent Go. That means the tariff's half-hourly optimisation and the charger's scheduling are the same conversation, not two systems trying to agree. On Octopus Agile, where prices move every thirty minutes, the Ohme chases the 5p slots automatically. Over a year, that recovers £57 several times over.

The GivEnergy EV Charger handles schedules too, but it's one-way: you tell it when to charge, it charges. No live supplier API, no dynamic price-chasing. On a fixed window like Octopus Go (8.5p, 00:30–05:30) this is fine — set it once and forget. On anything smarter, you're leaving the value on the table.

When the GivEnergy is the right answer

The GivEnergy's one argument is battery-to-EV, and it's a good one. If you already own a GivEnergy home battery — or a compatible third-party one — the charger can draw stored electricity from it into the car. That matters because most chargers with "solar integration" can only use live solar. Sun not shining at charging time? Tough. With a battery in the loop, you charge the battery overnight at 7p, and top the car up from the battery whenever suits. Cheap rates, untethered from the clock.

Without a battery, this vanishes as an argument. You're then paying £478 for a 7kW unit with a basic app, schedule-only tariff integration, and a three-year warranty. At that point the Easee One is £73 less for a sharper piece of kit, and the Ohme Home Pro outguns it on software for £57 more.

Solar, cables and the small print

Both units are IP65 weatherproof, both tethered Type 2, both single-phase 7kW-class — no 22kW option on either. Cable length is 5m each; the Ohme offers an 8m upgrade at extra cost, the GivEnergy doesn't. Warranty is three years on both, which is mid-table and nothing to celebrate — the Rolec EVO gives five, the Simpson & Partners Home 7 gives ten.

One Ohme advantage worth naming: the built-in 4G SIM (three years included). If your driveway sits at the edge of Wi-Fi range, this is the difference between a smart charger and an expensive dumb one. The GivEnergy is Wi-Fi only.

On solar, the GivEnergy does live diversion, and the Ohme does too — no external CT clamp needed. Both are adequate rather than specialist. Solar-first buyers should look at the Ohme vs Zappi GLO comparison; the Zappi is purpose-built for it.

Which to buy

Buy the Ohme Home Pro if:

• You're on Intelligent Go, Agile, or any variable-rate tariff
• You want the charger to optimise itself without your attention
• Your driveway Wi-Fi is patchy — the 4G SIM matters

Buy the GivEnergy EV Charger if:

• You own a GivEnergy home battery, or a compatible third-party one
• You want stored overnight-cheap electricity available to the car any time
• You're already inside the GivEnergy monitoring ecosystem

If the wall in question is mine and there's no home battery involved, the Ohme Home Pro goes up. The £57 premium buys real software — the kind that quietly reduces your bill every night for a decade. The GivEnergy is the right answer for a specific, growing, but still minority setup: houses where the battery already exists. In that house, nothing else in this price range matches it. In every other house, it's a competent charger that's been out-engineered by cheaper rivals and out-thought by smarter ones.