Most UK homes charge EVs at 7.4kW on a standard single-phase supply. But some properties have three-phase power — and that opens the door to **22kW home charging**, roughly three times faster. Instead of a 10-hour overnight charge, you could be fully topped up in 3–4 hours. Sounds brilliant, right? It is — if you actually have three-phase power, a charger that supports it, *and* a car with an onboard charger that can use it. That's a lot of "ifs," and in the UK, most of them don't apply to most people. This guide cuts through the confusion. We'll explain who actually has three-phase in the UK, which chargers and cars support 22kW AC charging, and whether upgrading your supply is worth the considerable cost.
⚡ Quick Answer: If you already have a three-phase supply, the myenergi Zappi is our top pick for 22kW home charging — especially if you have solar panels. The Easee Charge is the best alternative for multi-charger setups. If you're on single-phase (like 95%+ of UK homes), stick with a 7.4kW charger — the upgrade cost rarely justifies it. See our overall top picks →
## Who Actually Has Three-Phase Power in the UK? Here's the reality: **the vast majority of UK homes run on single-phase electricity**. Estimates suggest only around 2–5% of UK residential properties have a three-phase supply. It's fundamentally a single-phase country for domestic use. You're more likely to have three-phase if: - **Your home is rural or on a farm** — three-phase is more common in agricultural areas where heavy machinery needs power - **You live in a newer build** — some modern housing developments are wired with three-phase, particularly larger detached homes - **Your property has been converted from commercial use** — former workshops, barns, and commercial units often retain their three-phase supply - **You have a large, detached home** — properties with high electrical loads (electric heating, large workshops, pools) sometimes get three-phase - **You're in certain parts of Scotland or Wales** — some rural distribution networks are three-phase by default You can check your supply by looking at your consumer unit (fuse board). A single-phase supply has one main switch and one row of circuits. A three-phase supply has three main switches (or a three-pole main switch) and circuits split across three phases. Not sure? Ask your electrician or contact your Distribution Network Operator (DNO). ## Three-Phase vs Single-Phase: What's the Actual Difference? **Single-phase** delivers power via one live conductor at 230V. Maximum home EV charging: **7.4kW** (32A × 230V). **Three-phase** delivers power via three live conductors, each at 230V, with 400V between phases. Maximum home EV charging: **22kW** (32A × 400V × √3). In practical terms: | | Single-Phase (7.4kW) | Three-Phase (22kW) | |---|---|---| | **Full charge time (60kWh battery)** | ~8–9 hours | ~3 hours | | **Range added per hour** | ~25–30 miles | ~75–90 miles | | **Typical UK availability** | 95%+ of homes | 2–5% of homes | For most EV owners who charge overnight, 7.4kW is perfectly adequate — you plug in before bed and wake up to a full battery. The 22kW advantage really shines if you need to charge during the day, charge multiple vehicles, or have limited time windows. ## Best 3-Phase EV Chargers for UK Homes ### 1. myenergi Zappi — Best Overall 3-Phase Charger

myenergi Zappi (3-Phase)

~£999–£1,100 inc. installation
  • 22kW charging on three-phase
  • Three solar modes: Fast, Eco, Eco+
  • Built-in CT clamp for solar/energy monitoring
  • LCD display with real-time data
  • myenergi ecosystem (Eddi, Libbi)
  • IP65 weatherproof rating
  • Made in the UK 🇬🇧
  • OZEV grant eligible
Check Zappi Price →
The Zappi is available in both single-phase (7.4kW) and three-phase (22kW) variants. The three-phase model is functionally identical to the single-phase version — same solar modes, same app, same build quality — but delivers triple the charging speed. If you have three-phase power *and* solar panels, this is the obvious choice. Eco+ mode on a three-phase Zappi with a decent solar array means you can add serious range from solar alone — and the 22kW maximum means the charger can absorb large solar surpluses without waste. The Zappi integrates with myenergi's Eddi (hot water diverter) and Libbi (home battery), making it the centrepiece of a full renewable energy ecosystem. **Why it's our top pick:** Best-in-class solar integration at 22kW, UK-made, and excellent build quality. If you have three-phase and solar, nothing else comes close. [Read our full Zappi v2 review →](/reviews/zappi-v2-review/) --- ### 2. Easee Charge — Best for Multi-Charger Setups

Easee Charge (3-Phase)

~£900–£1,100 inc. installation
  • 22kW on three-phase / 7.4kW on single-phase
  • Built-in load balancing for up to 3 chargers
  • Built-in eSIM with 4G connectivity
  • Ultra-compact Scandinavian design
  • Over-the-air firmware updates
  • Untethered (Type 2 socket)
  • OZEV grant eligible
Check Easee Price →
The Easee Charge (replacing the older Easee One for three-phase installations) is a beautifully designed Norwegian charger that auto-detects whether it's connected to single-phase or three-phase and adjusts accordingly. Its killer feature for three-phase homes is **load balancing**. You can install up to three Easee chargers on the same circuit, and they'll intelligently share available power. If you have a multi-car household or you're thinking about adding a second EV, the Easee's load balancing saves you expensive electrical upgrades. The built-in 4G eSIM means no Wi-Fi dependency — it just works. Over-the-air firmware updates keep the charger improving after installation. **Why it's great:** Best load balancing on the market, future-proof, and beautifully compact. Ideal for three-phase homes with multiple EVs. [Read our full Easee One review →](/reviews/easee-one-review/) --- ### 3. Wallbox Pulsar Plus / Pulsar Max — Best Compact 3-Phase Option

Wallbox Pulsar Plus (3-Phase)

~£1,000–£1,200 inc. installation
  • 22kW on three-phase / 7.4kW on single-phase
  • Ultra-compact: 166 × 163 × 82mm
  • myWallbox app with Power Boost load balancing
  • Eco-Smart solar mode (with energy meter add-on)
  • LED halo status light
  • Intelligent Octopus Go support (Pulsar Max)
  • OZEV grant eligible
Check Wallbox Price →
The Wallbox Pulsar Plus is available in a three-phase 22kW variant — and it's the smallest 22kW charger you can buy. If space is tight or aesthetics matter, the Wallbox wins on sheer compactness. The Power Boost feature provides dynamic load balancing, monitoring your home's total electrical load in real time and reducing charging speed if needed to prevent overloading. The myWallbox app is excellent for scheduling and monitoring. The newer Pulsar Max adds Intelligent Octopus Go integration for automated smart tariff scheduling — a genuine advantage for three-phase users who want to minimise costs. **Why it's great:** The most compact 22kW charger available, with a polished app experience. Best for three-phase homes where wall space is at a premium. [Read our full Wallbox Pulsar Plus review →](/reviews/wallbox-pulsar-plus-review/) --- ## Which Cars Can Actually Use 22kW AC Charging? This is the critical question most guides skip. Having a 22kW charger is pointless if your car's onboard charger can't handle it. Every EV has an **onboard AC charger** (technically an inverter) that limits how fast it can accept AC power. Here's what the most popular UK EVs support: ### Cars That Support 22kW AC Charging - **Renault Zoe** — 22kW onboard charger (the original 22kW champion) - **Renault Megane E-Tech** — 22kW onboard charger - **BMW i4** — 11kW standard (no 22kW AC option) - **BMW iX** — 11kW standard, 22kW optional on some trims - **Tesla Model S / Model X** — Up to 22kW (with dual onboard charger) - **Tesla Model 3 / Model Y** — 11kW maximum AC - **Porsche Taycan** — 22kW onboard charger (standard on most trims) - **Mercedes EQS / EQE** — 22kW optional - **Audi e-tron GT** — 22kW onboard charger - **Polestar 2** — 11kW maximum AC ### Cars That Max Out at 11kW AC - **Hyundai Ioniq 5 / Ioniq 6** — 11kW onboard charger - **Kia EV6 / EV9** — 11kW onboard charger - **Volkswagen ID.3 / ID.4 / ID.5** — 11kW onboard charger - **MG4** — 11kW on higher trims, 6.6kW on base - **Nissan Leaf** — 6.6kW maximum AC - **Cupra Born** — 11kW onboard charger ### Cars That Max Out at 7.4kW AC - **Nissan Leaf (older models)** — 6.6kW - **MG ZS EV** — 7.4kW - **Fiat 500e** — 11kW (but 7.4kW on single-phase) **The takeaway:** Most mainstream UK EVs max out at **11kW AC**. On a three-phase 22kW charger, they'll simply charge at their onboard maximum — you won't damage the car, but you won't get the full 22kW speed either. True 22kW AC charging is mostly limited to Renault, some BMWs, Teslas (S/X), Porsche, and a handful of premium German models. If your car supports 11kW AC, a three-phase charger will still give you a meaningful speed boost over single-phase 7.4kW — roughly 50% faster. That's worth having if you already have three-phase power. ## Is It Worth Upgrading to Three-Phase? This is where the maths matters. ### The Cost of a Three-Phase Upgrade Upgrading from single-phase to three-phase involves: 1. **Application to your DNO** (Distribution Network Operator) — free to apply 2. **DNO assessment and quotation** — they survey your property and quote for the supply upgrade 3. **The upgrade itself** — new cabling from the street to your property, new meter, new consumer unit **Typical costs: £3,500–£15,000+** The huge range depends on: - Distance from the nearest three-phase supply in the street - Whether your street already has three-phase cables (many don't) - Groundwork required (digging up driveways, paths, etc.) - Your DNO and region - Whether the consumer unit needs full replacement The DNO work (supply cable and meter) often costs £2,000–£8,000 alone. Then you need an electrician to upgrade your consumer unit and internal wiring — add another £1,000–£3,000. ### Is It Worth It Just for EV Charging? **Almost certainly not.** Here's why: A 7.4kW single-phase charger adds about 25–30 miles of range per hour. If you charge overnight (say, 8 hours), that's 200+ miles — more than enough for virtually any daily use. A 22kW three-phase charger adds about 75–90 miles of range per hour. Faster, yes — but the benefit only matters if you can't charge overnight or need rapid daytime top-ups regularly. At a minimum cost of £3,500 for the supply upgrade plus £1,000+ for the charger, you'd need a very specific use case to justify £4,500–£15,000+ when a £600 single-phase charger does the job for most people. ### When Three-Phase DOES Make Sense - **You already have three-phase power** — no upgrade cost, just buy the charger - **You're doing a major renovation anyway** — bundle the upgrade with other electrical work - **You have multiple EVs and need daytime charging** — load sharing across three-phase is significantly better - **You have a large solar array (10kW+)** — three-phase lets you absorb more surplus solar - **Commercial or mixed-use property** — businesses with fleet vehicles benefit from faster turnaround
💡 Pro tip: If you have three-phase power already, there's no downside to installing a 22kW charger — even if your current car only accepts 11kW. Your next car might support more, and the cost difference between a 7.4kW and 22kW charger is relatively modest. Future-proofing makes sense when the infrastructure is already there.
## Our Verdict **If you already have three-phase power:** Install a three-phase charger. The myenergi Zappi is our top pick (especially with solar), the Easee Charge is best for multi-car households, and the Wallbox Pulsar Plus is best for compact spaces. The cost difference versus a single-phase charger is modest and you're future-proofing your setup. **If you're on single-phase:** Stick with a 7.4kW charger. The upgrade cost to three-phase is rarely justifiable for EV charging alone. A 7.4kW charger handles overnight charging perfectly for any EV on the market. See our [best home EV chargers guide](/best-picks/best-home-ev-chargers-uk/) for our top-rated single-phase picks. **If you're building or renovating:** Seriously consider specifying three-phase power. The marginal cost during construction is far lower than retrofitting, and it future-proofs your property for EVs, heat pumps, and solar batteries.

Our Top 3-Phase Picks

myenergi Zappi (3-Phase) — Best overall, unbeatable with solar panels.

Check Zappi Price →

Easee Charge — Best for multi-charger setups with intelligent load balancing.

Check Easee Price →

Wallbox Pulsar Plus — Most compact 22kW charger with excellent app.

Check Wallbox Price →
--- ## Frequently Asked Questions ### Can I install a 22kW charger on a single-phase supply? No. A 22kW charger requires a three-phase electricity supply. On single-phase, the same charger will operate at its single-phase maximum — typically 7.4kW. You won't damage anything, but you won't get 22kW speeds. ### Will a 22kW charger damage my car if it only supports 11kW? No. The car's onboard charger controls how much power it draws. If your car supports 11kW maximum AC, it will only draw 11kW from a 22kW charger. The charger and car negotiate the charging rate automatically via the Type 2 protocol. ### How do I find out if I have three-phase power? Check your consumer unit (fuse board). Three-phase supplies have a three-pole main switch or three separate main switches, with circuits distributed across three phases. Your electricity meter may also indicate three-phase. If unsure, ask a qualified electrician or contact your DNO. ### Is 22kW charging faster than a public rapid charger? No. Public rapid chargers use DC charging at 50–350kW, which is significantly faster. A 22kW charger uses AC power — it's faster than a standard 7kW home charger but much slower than a motorway rapid charger. Think of 22kW AC as "fast home charging," not "rapid charging." ### Can I get the OZEV grant for a three-phase charger? Yes. The OZEV grant (up to £350) applies to eligible three-phase chargers including the myenergi Zappi, Easee Charge, and Wallbox Pulsar Plus — provided they're installed by an OZEV-registered installer and you meet the eligibility criteria. See our [OZEV grant guide](/guides/ev-charger-government-grant-uk/). --- *See also: [Best Home EV Chargers UK 2026](/best-picks/best-home-ev-chargers-uk/) · [Zappi v2 Review](/reviews/zappi-v2-review/) · [Easee One Review](/reviews/easee-one-review/) · [Installation Cost Guide](/guides/home-ev-charger-installation-uk/) · [Smart Chargers Explained](/guides/smart-ev-charger-explained/)*

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