The Indra Smart PRO — UK-built, OZEV approved, £435. View product →
Indra is one of the most quietly interesting brands in UK home charging. Founded in 2014, partly owned by OVO Energy and assembled in Malvern, Worcestershire, the Indra Smart PRO has been picking up serious traction with smart-tariff customers — but it is still less famous than the Ohme or Zappi. This review explains why that is changing fast, and whether the Smart PRO deserves the spot in your driveway.
Who are Indra?
Indra Renewable Technologies is a UK company founded in 2014, focused entirely on EV charging hardware and grid services. The company was an early pioneer in vehicle-to-grid (V2G) — its prototype V2G charger was used in some of the first UK pilot schemes in 2018.
In 2021, OVO Energy acquired a majority stake in Indra. That ownership matters in practice: the Indra Smart PRO has one of the cleanest integrations with OVO Charge Anytime of any UK home charger, because the same engineering team builds both. It is also the reason Indra hardware is now bundled with OVO's EV tariff sign-ups in many cases.
All Indra units are designed and assembled in the UK. That is rare in this market — most "British" chargers are designed here but built in Asia.
Indra Smart PRO at a glance
| Spec | Detail |
|---|---|
| Price (inc. VAT) | £435 untethered / £555 tethered (Smart LUX) |
| Power | 7 kW (single-phase only) |
| Connector | Type 2 — untethered socket (tethered available as the Smart LUX) |
| Smart tariff support | Listed by both Octopus Intelligent Go and OVO Charge Anytime |
| Solar diversion | Yes (with optional CT clamp) |
| Vehicle-to-home (V2H) | Available via Indra V2H upgrade hardware |
| Earth protection | Built-in PEN fault detection (no earth rod needed) |
| App | Indra app (iOS / Android) |
| Display | LED status ring |
| Connectivity | Wi-Fi, Ethernet, 4G failover (selected installs) |
| Weather rating | IP65 |
| Warranty | 3 years |
| OZEV grant eligible | Yes |
| Made in | UK (Malvern, Worcestershire) |
Worth flagging upfront: the Indra Smart PRO is single-phase only. If you have a three-phase supply and want a 22kW charger, look at the Zappi or Easee ranges instead. For 99% of UK homes — single-phase, 7kW — the Indra is on the shortlist.
Price and OZEV grant maths
At £435 the Indra undercuts the Ohme Home Pro (£526) and the Easee One (£482), and sits well below the myenergi Zappi 2.1 (from £685) and the Hypervolt Home 3 Pro.
| Charger | Headline price | After £350 OZEV grant (if eligible) |
|---|---|---|
| Indra Smart PRO | £435 | £85 |
| Easee One | £482 | £132 |
| Ohme Home Pro | £526 | £176 |
| Indra Smart LUX (tethered) | £555 | £205 |
| myenergi Zappi 2.1 | £685 | £335 |
If you qualify for the OZEV grant (renter, flat owner, or landlord — see our OZEV grant guide), the Indra effectively lands at £85 for the unit itself. Add typical installation (£300–£500) and you are looking at £385–£585 fully fitted. That is among the cheapest paths to a fully-featured smart charger in the UK in 2026.
Smart tariff integration — Octopus and OVO
This is where the Indra punches above its weight. It is one of only a handful of chargers in the UK that appears on both major smart EV tariff lists — meaning the tariff and the charger talk directly to each other, not via a manual schedule.
Octopus Intelligent Go
The Indra is on Octopus's compatible charger list. When you set a charge target in the Indra app ("ready by 7am at 80%"), Octopus schedules the cheapest half-hour windows automatically — even outside the standard 11:30pm–5:30am off-peak window if there is spare capacity on the grid. For chargers at this price, that is rare.
OVO Charge Anytime
This is where the OVO ownership shows. The Indra Smart PRO and Smart LUX both appear on OVO's published Charge Anytime compatibility list, and the integration is about as tight as it gets — same engineering team. If you are an OVO customer, this alone is worth the price of admission, particularly as several better-known chargers (the Ohme among them) are not supported on that tariff at all.
Vehicle-to-home (V2H) — the unique selling point
This is the genuinely unusual feature. Vehicle-to-home means using your EV's battery to power your house — at off-peak times you charge the car cheaply, and during peak hours the car powers your home, eliminating expensive grid electricity. Done well, V2H can pay back the cost of an EV charger and tariff in 12–24 months on the right tariff.
The standard Indra Smart PRO is a normal 7kW Type 2 charger. To enable V2H you add Indra's V2H hardware module — currently supported on a small but growing list of vehicles, most notably the Nissan Leaf via its CHAdeMO port, the Nissan e-NV200, and (via roadmap) certain newer CCS-V2H capable EVs.
No other UK consumer charger at anything like this price offers the upgrade path today. It is the single feature that justifies buying an Indra over an Ohme even if you do not need it now.
Solar and home battery integration
The Indra supports solar diversion via an optional CT clamp. When fitted, surplus PV generation is diverted into your EV in much the same way as a Zappi, including a "Solar Only" mode equivalent to the Zappi's Eco+. Output is metered at 1.4kW minimum (any less and the EV stops accepting charge, so the Indra waits for the surplus to climb above that threshold).
It is not quite as polished as the Zappi's solar integration — the Zappi has tighter mode logic and a longer track record — but for many households the difference will not be visible day-to-day. Saving £250 on the hardware is.
Installation, build quality and the app
Physically the Smart PRO is an unfussy IP65 enclosure roughly the size of a large biscuit tin. It has a single LED status ring rather than a screen, which keeps the price down but means you need the app to see specifics. Some buyers love this minimalism; others miss the at-a-glance display the Ohme or Zappi offer.
Installation is straightforward for any OZEV-approved electrician — built-in PEN fault detection avoids the cost and ugliness of a separate earth rod, which saves you typically £80–£150. Wi-Fi setup uses Bluetooth pairing, and the unit also accepts Ethernet for installs in low-Wi-Fi corners.
The Indra app is functional and clean. It is not as polished as Ohme's car-aware UX, but it does the job: schedule charges, see kWh used, control modes, manage tariff integration.
Indra vs Ohme vs Zappi
The three chargers most often cross-shopped against the Indra are the Ohme Home Pro, the Zappi, and the Easee One. Quick decision matrix:
| Your situation | Pick |
|---|---|
| OVO Charge Anytime customer | Indra Smart PRO — on OVO's list; the Ohme is not |
| Octopus Intelligent Go customer, no solar | Toss-up between Indra (£435) and Ohme Home Pro (£526). Ohme has the deeper native integration; Indra is £91 cheaper. |
| Solar PV installed | Zappi — solar diversion is more mature than Indra's |
| Want vehicle-to-home capability | Indra Smart PRO — the only V2H upgrade path at this price |
| Three-phase supply / 22kW required | Zappi 22kW or Easee 22kW — Indra is single-phase only |
| Two-EV household, dynamic load balancing | Easee One with Equalizer — best multi-charger logic, though not on either tariff list |
| Tightest budget, OZEV grant eligible | Indra Smart PRO — £85 after grant |
For the Zappi-vs-Ohme decision specifically, see our full Zappi vs Ohme comparison. For more on the Octopus tariff pairing, see our Octopus-compatible chargers guide.
Who should buy the Indra Smart PRO?
Yes, buy the Indra if:
• You are an OVO Energy customer (or planning to switch) — it is on OVO's compatible list and most rivals are not.
• You drive a Nissan Leaf and want the option of vehicle-to-home charging in the future.
• You want a fully-featured smart charger but are price-sensitive — £435 (or £85 after grant) is one of the cheapest entries into proper smart functionality.
• You like the idea of buying from a small UK manufacturer rather than a global brand.
Skip the Indra if:
• You have solar panels and want maximum solar diversion sophistication — the Zappi is still better here.
• You have a three-phase supply and want 22kW.
• You want the most polished app in the EV charger market — Ohme still has a slight edge.
• Aesthetics matter to you and you want a customisable fascia — go to the Andersen A2.
Common questions
Is the Indra Smart PRO worth the price?
Yes. At £435 it offers Ohme-class smart features plus OVO compatibility that the Ohme does not have, for £91 less, and adds a V2H upgrade path. Few chargers at this price punch this far above their weight.
Does the Indra need a separate earth rod for installation?
No — built-in PEN fault detection means a typical install does not require a separate earth rod, saving roughly £80–£150 on the install bill.
Can I install the Indra Smart PRO myself?
No. UK building regulations (Part P) require all new EV charger circuits to be installed by a qualified electrician registered with NICEIC, NAPIT or ELECSA. See our EV charger installation guide.
Does the Indra work with a Tesla?
Yes — every UK Tesla uses Type 2 for AC home charging, so the Indra Smart PRO charges any Tesla at the full 7kW. See our best home charger for Tesla guide.
Can the Indra do solar diversion without a CT clamp?
No — the optional CT clamp is required for solar diversion. Without it, the charger is a normal smart 7kW unit.
How does the Indra compare to the Ohme Home Pro?
Very similar feature set, with the Indra £91 cheaper and adding a V2H upgrade path. The Ohme has a slightly better app, a built-in display and deeper native Octopus integration. For OVO customers the Indra wins outright, because the Ohme is not supported on Charge Anytime; for Octopus customers the Ohme edges it.
Is V2H available for my car?
V2H currently works on the Nissan Leaf and Nissan e-NV200 via the CHAdeMO port plus Indra's V2H hardware. CCS V2H support is on the roadmap as more vehicles certify the standard. Check Indra's compatibility list before buying if V2H is your reason to choose this charger.
Buy the Indra Smart PRO
Browse our Indra collection for current pricing and tethered/untethered options. Free UK delivery and OZEV-grant eligibility on every unit.
Comparing options? See our Zappi vs Ohme comparison, our Octopus-compatible chargers guide, or call us on 0330 043 8012 for a recommendation tailored to your home and tariff.