Ohme Home Pro vs Zaptec Go 2: automation now or V2G later?

Automation you'll use today, or a standard you might use tomorrow

Thirty-five pounds separates these two, and the money is the least interesting thing about them. The Ohme Home Pro is £535 and talks directly to your energy supplier, half-hour by half-hour. The Zaptec Go 2 is £500, carries a V2G-ready certification no other AC home charger in the UK can match, and an MID-approved meter for billing-grade readings. One charger is built for the tariff you're on this week. The other is built for the grid you might be part of in five years.

The shortest version:

• Ohme Home Pro — automates smart tariffs now; the £35 premium earns itself back on any half-hourly rate.
• Zaptec Go 2 — three-phase capable, V2G-ready, five-year warranty; untethered only, smaller installer network.

Is the Ohme's £35 premium worth it?

If you're on Octopus Intelligent Go, the answer is yes and it isn't close. The Ohme is officially recommended for that tariff, with direct API integration that lets it chase the 7p/kWh window without you touching the app. The Zaptec will charge on a schedule you set, but it won't adjust when Octopus shifts your slot or hands you a free hour outside the usual window. That's what you're buying with the Ohme — the bit between the tariff got cheaper at 2am and my car knew about it.

The calculation changes on fixed-window tariffs. On Octopus Go or EDF GoElectric, the off-peak block is the same every night. A scheduled charge in the Zaptec app hits the same 8.5p or 8.99p the Ohme would, and you've kept £35. On Octopus Agile, where prices move every half hour, neither charger is ideal — the Ohme handles Agile better than most, but it's the Ohme ePod or a dedicated Agile optimiser that truly shines there. (Apologies — that last bit was a slip. What the Ohme does on Agile is follow the cheapest blocks competently; the Zaptec doesn't attempt it.)

When the Zaptec earns its price

Three reasons, in descending order of how likely they are to apply to you.

First, three-phase. If you've got a three-phase supply, the Go 2 auto-switches up to 22kW. The Ohme can't — it tops out at 7.4kW, ever. Most UK homes are single-phase, so this is a minority case, but it's a decisive one when it applies.

Second, the MID-approved energy meter. If you ever need to prove how much you've charged — company car reimbursement, landlord billing, shared driveway — the Zaptec produces legally certified readings. The Ohme's per-session tracking is detailed, but it's not MID-certified.

Third, V2G. The Go 2 is the only AC home charger in the UK carrying V2G-ready certification. Whether that matters depends entirely on whether you think vehicle-to-grid will be a real consumer product within this charger's operational life. It might. It might not. The warranty runs five years, which is a reasonable horizon for the technology to settle. If you're sceptical, skip the bet; if you're a patient early adopter, the £35 you saved buys you an optional future.

Worth flagging: the Zaptec is untethered. You'll need to buy and store a Type 2 cable. For some drivers that's neater — swap cables for different connectors, keep the unit tidy when not in use. For most, it's a minor daily friction the Ohme's 5-metre tether avoids.

The verdict

Buy the Ohme Home Pro if:

• You're on Intelligent Go, OVO Charge Anytime, or any half-hourly tariff
• You want a tethered cable and plug-and-go convenience
• You'd rather the charger handle the optimisation than the app

Buy the Zaptec Go 2 if:

• You have (or may get) a three-phase supply and want the 22kW headroom
• You need MID-certified meter readings for billing or reimbursement
• You want to be on the front of the queue when V2G tariffs arrive

If forced to put one on a wall today, knowing nothing about the buyer except they own a Tesla and pay ordinary domestic rates, it's the Ohme. The automation is real, the savings are real, and they start the week it's installed. The Zaptec is the sharper piece of hardware; the Ohme is the one you'll notice less — which, for a home charger, is usually the compliment that matters. V2G-curious readers should also look at the Zaptec vs Indra Smart PRO comparison before deciding.