Growatt THOR home EV charger: models, specifications and smart features

Growatt is best known in the UK for solar inverters and battery storage, and its THOR charger range extends that ecosystem to electric car charging at home. The domestic AC models come in two families: the THOR 07AS at 7 kW on a single-phase supply, and the THOR 11/22AS at 11 kW or 22 kW on three-phase¹. Alongside them sit DC units aimed at commercial settings². For most houses, the relevant product is the 7 kW single-phase wallbox, because that is what a standard UK domestic supply supports.

The headline attraction for a solar household is PV Linkage: the charger follows the surplus from the PV installation, so the car absorbs energy that would otherwise be exported². The THOR 22AS-P-EW1 runs four modes, PV Linkage, Off-peak, Load balancing and Fast, and carries a 3 year warranty per the manufacturer's datasheet². This page sets out the full range, the specifications, the smart features and what a THOR charger does and does not do for a household's energy independence.

The THOR range: what Growatt sells

Growatt's EV charger line splits into AC wallboxes for the home and DC units for faster, higher-power use. On the AC side there are two families. The THOR 07AS-S/P/SE/PE is a 7 kW single-phase AC charger¹, sold in UK version form⁵. The THOR 11/22AS-S/P/SE/PE is an 11 kW/22 kW three-phase AC charger¹. Both are listed as easily integrated into a solar storage system, with smart load balancing, multiple working modes and plug and play, RFID or app charge activation⁵.

The DC side is a different proposition. The THOR 20DS-P is a DC charger³, the THOR 40DS-P/DD-P comes with single or dual DC outputs at 40 kW using a CCS2 connector and the OCPP protocol⁴, and the THOR 60-200DD-P runs up to 200 kW with smart load management for multiple units⁷. These are commercial-scale products: units of this kind draw far more power than a domestic supply can provide, and Growatt positions them accordingly. Growatt states the AC range is compatible with all brand EVs⁵, and the same claim is made across the DC models³.

For background on charger types generally, see types of home EV charger and the main home EV charging guide.

Charging power: 7, 11 or 22 kW, and what your supply allows

The power question comes down to the supply into the house. Fast charging is defined in independent guidance as 7 kW to 22 kW⁸, and the THOR AC range spans exactly that band: 7 kW on single-phase, 11 kW or 22 kW on three-phase¹. The THOR 07AS-P-EW1 is rated at 7 kW on a single-phase 230 V supply, the THOR 11AS-P-EW1 at 11 kW on a three-phase 400 V supply, and the THOR 22AS-P-EW1 at 22 kW².

Most UK homes have a single-phase supply, which caps a home charger at 7 kW in practice. Chargers offering 11 kW or 22 kW normally require a three-phase electricity supply⁹, and higher-power chargers rated at 22 kW usually need a three-phase supply that is more common in commercial settings¹⁰. Three-phase Mode 3 charging at 22 kW is an established standard¹¹, but a householder cannot buy their way to it: the supply must already be three-phase, or be upgraded at cost by the network operator.

Two further limits sit on the car side. The vehicle's on-board charger sets the maximum AC speed it will accept, so a car limited to 7 kW gains nothing from a 22 kW unit. And charging speeds and times vary by car model, covered in more detail at EV charging speeds and times and in the comparison of 7kW vs 22 kW home chargers.

Connecting solar panels and using excess power to charge

This is where the THOR range is most distinctive, because it is built by a solar inverter and battery maker rather than a charging specialist. The THOR 22AS-P-EW1's PV Linkage mode makes the charger follow the surplus from the PV installation, so the car absorbs energy that would otherwise be exported². Across the AC range, Growatt states the EV will be charged by the surplus solar power dynamically⁵, and the 07AS page describes a PV linkage charge mode driven by solar, letting a household charge a car with renewable energy from their own roof⁵.

The mechanism matters for anyone with panels. Without surplus charging, electricity generated but not used in the home flows to the grid for a small export payment. With PV Linkage, that flow is diverted into the car battery instead, which displaces grid electricity the household would otherwise buy, including on an EV tariff. Growatt frames the benefit as maximising the solar self-consumption rate and cutting the bill⁵.

The dependence to note is that surplus charging only works when there is surplus. In winter, at night, or on a heavily loaded household, the charger falls back on grid power, so the solar mode reduces grid dependence rather than removing it. How solar charging works in general, and whether a special charger is needed, is covered at charging an EV from solar panels and solar vs grid charging.

Smart features: four modes, load balancing and charge activation

The THOR 22AS-P-EW1 runs four modes: PV Linkage, Off-peak, Load balancing and Fast². Off-peak mode charges when electricity is cheapest, which pairs with an overnight EV tariff. Load balancing is the safety-relevant one: the charger monitors what the house is drawing and scales the charge rate so the total stays within the supply's capacity, which is what lets a 7 kW charger coexist with a shower, a heat pump and cooking on a typical 60 to 100 amp supply. Growatt lists smart load balancing across the AC range⁵, and the DC units extend the idea to smart load management for multiple units⁷.

Charge activation offers three routes: plug and play, where charging starts on connection, an RFID card, and the app⁵. RFID is the useful option for households with several drivers, since each card can be tied to its own usage record. The multiple working modes are listed for both AC families⁵.

What the THOR range does not offer, on the facts available, is vehicle-to-grid or vehicle-to-home discharge: the energy flows one way, from supply or panels to car. Bidirectional options are covered at vehicle-to-grid charging. How smart chargers work in general is explained at smart EV chargers, and the legal requirement for smart capability at the Smart Charge Points Regulations.

Connectivity and protection: LAN, WiFi or 4G, IP65 and RCD cover

Every THOR model listed offers flexible communication by LAN, WiFi or 4G⁵. That flexibility is practical: a charger in a garage with thick walls may hold a WiFi signal poorly, in which case a LAN cable or the 4G fallback keeps the app and smart features working. It also means the charger depends on a working connection for its remote features, the same dependence every smart charger carries, covered at EV charger apps and connectivity.

Weather protection is IP65 across the AC range⁵, meaning the units are dust-tight and protected against water jets, suitable for outdoor wall mounting in British weather. Residual current protection is built in. The THOR 22AS-P-EW1 lists AC 30 mA plus DC 6 mA protection, so no external DC-sensitive RCD is required for that model². The wider AC range lists a Type A RCD plus 6 mA DC fault current protection⁵. DC fault detection matters because an electric car's charger can leak a smooth DC component that a standard RCD cannot see, a point explained in independent wiring guidance on RCDs for EV charging equipment¹¹. The installer confirms the final protection arrangement at the consumer unit, as described at electrical requirements for a home charge point and RCD protection for EV chargers.

THOR 22AS-P-EW1: the specifications

The THOR 22AS-P-EW1 is the flagship AC unit, rated at 22 kW on a three-phase supply². Its specification table:

The dimensions are worth noting: at 220 x 405 x 95 mm the unit is a slim wallbox that fits a tight wall or pillar². The Type 2 socket means it is untethered, so the householder supplies their own cable, unlike a tethered unit such as the Hypervolt Home 3 Pro¹². Connector types are compared at Type 2 vs CCS and EV connectors and cables.

Price and where to buy in the UK

There is no manufacturer list price for a THOR charger. Growatt sells its products through Growatt.tech, with B2B trade prices for installers and businesses shown after login¹³, so the consumer price arrives via an installer's quote. For the THOR 07AS-SE-V1 specifically, distributor listings show two figures, £259.00 and £269.50, which differ between sellers; neither includes installation, and the VAT position is not stated in the listings. Fitted cost depends on the electrical work needed, which an installer assesses on a visit, including checks on the existing supply and where the charger will mount¹⁴. What drives a fitted quote generally is covered at home EV charger cost.

Availability is through Growatt's own channel and its installer network rather than broad retail listings, which is worth checking locally before committing. The warranty position is defined: the standard warranty period runs from the date of installation on the installation certificate, and no more than six months after the delivery date from Growatt, with an extension only applicable within two years of the installation date¹⁵. The 3 year term on the 22AS-P-EW1² is shorter than the 10 year terms Growatt applies to some of its inverters and batteries, so a household comparing the ecosystem should read each product's terms separately. Warranty terms across the market are compared at EV charger warranties.

How a THOR charger supports self-sufficient home energy

A THOR charger's clearest contribution is turning a solar array into car fuel. Growatt's own framing is that combining PV and EV charger maximises the solar self-consumption rate and cuts the bill⁵, and the wider argument, made by Solar Energy UK, is that more homegrown energy means greater energy independence¹⁶. A household that charges from panel surplus is buying less electricity, at whatever the tariff of the day charges, and is less exposed to price rises on the units it no longer imports.

The dependence that remains is real and should be stated plainly. The charger itself draws from the grid whenever solar is insufficient, so the household stays on its supplier and tariff. The smart features depend on a working internet connection and Growatt's app and servers, and the 4G option depends on mobile coverage. The warranty and support route run through the manufacturer, and the longest terms depend on timely registration. And the car's charging speed is capped by the supply: a 7 kW single-phase THOR is the practical ceiling for most homes, whatever the range above it offers.

For a household weighing the options, the THOR range is strongest where a Growatt solar and battery system is already installed or planned, because the PV Linkage mode is the point of the product. Side-by-side comparisons with other solar-aware chargers are at zappi, Fronius Wattpilot, myenergi vs zappi alternatives, and the wider question of EV charging and energy independence.