№ 32 · Reviewed · 2026 review
SolaX Power
SolaX Smart EV Charger G2
X1-HAC-7P-E.
Review verdict
SolaX Smart EV Charger G2 decision summary
- Unit only
- £323
- VAT included
- Installed estimate
- £723–£923
- derived market estimate
- Warranty
- 3 years
- Grant position
- Approved unit
- Customer and property eligibility is separate
What stands out
Main limitation
The installed range is an estimate. The source date above is separate from the editorial review date.
SolaX builds solar inverters, and this is a solar company's charger: three PV-surplus modes, a CT clamp in the box, and no line at all into a UK smart tariff. That last part is the caveat to settle before anything else. SolaX appears on none of Octopus's compatible-charger lists, so on Intelligent Octopus Go the tariff cannot schedule the charger. For most cars, that ends the discussion.
For a Tesla it doesn't. Intelligent Go schedules through the car's own API, not through the wallbox, so the box on the wall is allowed to be dumb: a Model 3 on a £323 SolaX charges in the same 11:30pm–5:30am window, at the same 8p/kWh, as one on a £539 Ohme Home Pro. The Ohme can negotiate extra off-peak slots out of Octopus during the day and the SolaX cannot, which is a difference you will rarely notice if you charge overnight. Plug a car Octopus can't talk to into this charger, though, and the cheap rate has nothing to talk to either. Then the cheaper hardware can be a false economy.
One more thing to check before ordering, because it is the kind of mistake that gets found on install day. The "-E" is not a trim level. SolaX's manual is explicit: models named with "-E" carry PEN fault protection and are specified for TN-C-S (PME) supplies, while the near-identically-titled X1-HAC-7P — no suffix — is the variant for TN-S, TT and IT. Retailers stock both at roughly the same price under near-identical titles, and almost none explain the difference. On a TT (earth-rod) supply, common in rural and older housing, the -E is the wrong box.
Best for: Tesla owners on Intelligent Octopus Go, and solar households who'd rather not pay Zappi money.
Installation
Fitting the SolaX Smart EV Charger G2.
5 kg, 390 × 206 × 139 mm, on a dedicated 32A single-phase circuit, with a 6.5-metre tethered cable — longer than the Ohme's 5 m, shorter than the Tesla's 7.3 m. IP65 on this tethered version; the untethered X1-HAC-7S-E is IP54, which is a genuine difference on an exposed wall rather than a documentation slip. IK10 shell, −30°C to 50°C.
The single-phase CT clamp is a packing-list item, not an upsell, and an RFID card comes with it. What does not come with it is the RCD: the 30 mA AC and 6 mA DC residual current monitoring is on-board, but SolaX's own manual still lists a Type A RCBO under "additionally required materials", so the installer fits protection at the consumer unit as usual. PEN fault protection is built into the -E, which at least removes the earth rod on a TN-C-S supply.
Solar is where the design effort went. Green charges from PV surplus alone, ECO tops that up from the grid, Fast ignores solar and pulls rated power. None of it requires a SolaX inverter: the charger reads grid data from an inverter if there is one, then a meter, then the bundled CT clamp, in that order. The exception is in the manual — with a non-communicating inverter under a zero-injection requirement, Green and ECO "may not work normally". Full walkthrough in our install guide.
Specification
- Max Power Output
- 7.2kW single-phase (32A @ 230V, adjustable 6–32A); the DfT list records it as 7kW
- Cable Length
- 6.5 metres
- Connector
- Type 2 (tethered), IEC 61851-1
- Connectivity
- Wi-Fi, Ethernet, Bluetooth, RS485 ×2; 4G optional
- Dimensions
- 390mm × 206mm × 139mm
- Weight
- 5 kg
- IP Rating
- IP65 (tethered; the untethered X1-HAC-7S-E is IP54)
- IK Rating
- IK10 (shell), IK08 (optional screen)
- Operating Temperature
- -30°C to 50°C (-25°C to 50°C on the LCD model)
- Earthing
- TN-C-S (PME); the non-E X1-HAC-7P covers TN-S, TT and IT
- Protections
- PEN fault protection; residual current monitoring 30mA AC + 6mA DC. An external Type A RCBO is still required
- Protocol
- OCPP 1.6j, Modbus TCP/RTU, Cloud API
- Authentication
- Plug-in start, RFID (ISO-14443-A) or app; ISO 15118 optional
- Certification
- OZEV-approved — X1-HAC-7P-E on the DfT eligible chargepoint model list
Tariff compatibility
What it costs to run.
There is a scheduler, and that is all there is. On a fixed two-rate tariff like Octopus Go, set the off-peak window once in the SolaX app and leave it — nothing is lost, because there is nothing to automate. On Octopus Agile, where prices move every half hour, it is the wrong charger: the Ohme Home Pro reads tomorrow's prices and books the cheap slots itself. And on Intelligent Octopus Go, a Tesla routes around the problem entirely. For the wider pattern, see our smart-tariff chargers guide.
Best pairing
EDF GoElectric
- Off-peak rate
- 6.99p
- Saving / year
- £546
Estimated at 10,000 miles a year against the 26.11p/kWh standard rate.
Compare every tariffPrice
What you actually pay.
The unit is currently £323. £400–£600 is the working installation range, putting a typical installed total at £723–£923. Rounded representative retail price.
Five-year total
£1,822
Charger, installation, and five years of electricity on EDF GoElectric, at 10,000 miles a year.
Less £500 if you qualify for the OZEV grant.
Against the field
How it compares.
The EVEC VEC03 at £349 is the unit this most directly displaces: the SolaX is £26 less, with a longer cable, a settled IP65 where EVEC's own paperwork disagrees with itself, a CT clamp in the box that EVEC sells separately — and a model EVEC hasn't just replaced. Against the Tesla Wall Connector at £475: £152 less, and OZEV-approved where the Tesla isn't — but the Tesla is the better-made unit, with the longer cable and an app you already have. Against the Ohme Home Pro at £539: £216 less, and on Intelligent Go with a Tesla the Ohme's advantage largely evaporates; put any other car on the drive and it returns in full. For solar, the Zappi GLO at £599 is still the more refined diverter, for £276 more. More in our solar and EV charging guide.
The caution nobody can currently resolve: this charger sells through solar and electrical trade wholesalers rather than the retail channel, and there is no independent long-term UK record of what owning one is like. The hardware is verifiable. The app, the cloud and the third year are not.
What we loved
- Plus£323 for a tethered 7.2kW unit, OZEV-approved — the X1-HAC-7P-E is on the DfT's eligible chargepoint list
- PlusSingle-phase CT clamp and RFID card supplied in the box, not sold as options
- PlusGreen and ECO solar modes work alongside a third-party inverter; no SolaX inverter required
- PlusPEN fault protection on the -E, so no earth rod on a TN-C-S supply
- PlusIP65 with an IK10 shell and a -30°C to 50°C range — fine on an exposed wall
- PlusOCPP 1.6j, Modbus TCP/RTU and a cloud API, so it isn't locked to SolaX's own back-end
- Plus6.5-metre tethered cable, longer than the Ohme's 5 m
What we didn't
- MinusNo smart-tariff integration of any kind — SolaX is on none of Octopus's compatible-charger lists. Only Teslas escape it, because Intelligent Go schedules through the car
- MinusWrong charger for half-hourly pricing: on Octopus Agile you would be rewriting schedules by hand
- MinusThe "-E" is an earthing specification, not a trim level: -E for TN-C-S (PME), the non-E X1-HAC-7P for TN-S, TT and IT — easy to order the wrong one
- MinusOn-board residual current monitoring does not replace the RCD; SolaX's manual still lists a Type A RCBO under "additionally required materials"
- MinusNo screen on this variant — the "L" suffix denotes the LCD model
- MinusSold through solar and electrical trade wholesalers rather than the retail channel — no independent long-term UK reliability or app record
After the evidence
Ask installers to price this exact charger.
The installation brief carries SolaX Smart EV Charger G2 as your preference, together with the property and parking details needed for a useful response.
Related reading
Keep going →
Complete Guide to Home EV Charger Installation
Everything about installation — costs, timeline, and finding an installer.
How Much Does It Cost to Charge a Tesla at Home?
Detailed cost breakdown with off-peak tariffs and annual savings.
OZEV EV Charger Grant UK 2026
Who's eligible for the £500 government grant and how to claim.
Solar Panels and EV Charging UK Guide
Can you charge your Tesla for free with solar panels?
Best EV Charger for Solar Panels UK 2026
Ranked comparison of all solar-compatible chargers.
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