Switching to an electric car is a big step, and choosing the right 22kw home charger is an important part of that process. For homeowners around Exeter and across Devon – where off-street parking on suburban driveways makes home charging genuinely practical – you want a charger that’s quick, reliable, and easy to use. But with so many options available, making the right choice can feel a bit overwhelming, right? This post will guide you through everything you need to know about 22kw home chargers. You’ll learn about the benefits they offer, factors to consider before purchasing, and whether a 22kw charger is the right fit for your specific needs – including the DNO notification our NICEIC-accredited team handles here in the South West.
Understanding 22kw Home Chargers
A 22kw home charger is a type of electric vehicle supply equipment (EV charger) that charges your electric vehicle much faster than a standard 7kW charger. They use a three-phase power supply, meaning the electricity flows through three conductors instead of just one. This allows for significantly faster charging times, often up to three times faster than a single-phase 7kW charger.
Think of it like this: Imagine filling a bucket with water. A 7kW charger is like using a single garden hose, while a 22kw home charger is like using three hoses simultaneously. You get the same result—a full bucket of water (or a fully charged car battery)—but in a fraction of the time. This is particularly useful for EV owners who regularly drive long distances or have limited time for charging.
Benefits of a 22kw Charger
Besides the obvious benefit of faster charging times, a 22kw home charger offers several other advantages:
- Reduced Charging Costs: By charging during off-peak hours, when electricity tariffs are usually lower, you can potentially save on charging expenses.
- Future-Proofing: As EVs with larger battery capacities become more common, a 22kW charger will be able to handle their charging requirements efficiently.
- Convenience: Having a fast charger at home means you can spend less time tethered to a charging point. Top up your car’s battery quickly while you get ready in the morning or have dinner in the evening.
Is a 22kW Charger Right for You?
This depends on a couple of factors. Not all electric cars can accept a 22kW charge rate. If you have a three-phase supply but your car’s onboard charger is limited to 7kW, it won’t charge any faster with a 22kW unit. It’s like having a fire hose to water a delicate flower—the excess capacity won’t make a difference.
However, a more powerful 22kw home charger doesn’t mean it’s always the best option for every homeowner. Let’s consider the following:
Electricity Supply
Do you have a three-phase electricity supply? It’s a specific type of electrical supply often found in commercial buildings but less common in UK homes. Without this, you can’t fully use a 22kW EV charger.
You can check by looking at your electricity meter. If it’s a standard single-phase meter, a 22kw home charger won’t offer the full benefits. The good news is that you can apply for an upgrade to a three-phase supply through your District Network Operator (DNO).
But, keep in mind that upgrading your fuse to three-phase will be expensive. While prices vary, you’re looking at costs starting from £1,500 (excluding VAT) and often ranging between £3,500 and £5,500 in total (excluding VAT). Achieving fast charging at home often involves these more expensive costs.
Vehicle Compatibility
Your EV also plays a key role in determining your charging speed. This is where the car’s onboard charger (OBC) comes into play.
The OBC, not the EV charger, determines the maximum power the vehicle can accept. Imagine you have a 22kW EV charger but a vehicle that accepts only 7kW. In this scenario, the vehicle will only charge at a maximum of 7kW, despite the charger’s capability to deliver more. It’s important to consult your electric vehicle’s manual or speak with a knowledgeable dealer or manufacturer to understand your vehicle’s specific charging capabilities.
Cost
Generally, a 22kw home charger will cost a bit more than a standard 7kW charger. But remember, charging at home is often cheaper overall compared to public charging stations. Especially when you can charge your vehicle during off-peak hours.
It might be worth considering if you plan to keep your EV for an extended period and want the most efficient home charging experience. Plus, there may be financial incentives, such as government grants, available to offset installation costs and make the transition to a 22kw charger more financially appealing. The UK Government’s Electric Vehicle Homecharge Scheme (EVHS) offers a grant to help with these costs.
Charging Speeds and Times
Here’s a quick look at the charging speeds and estimated times for a 60kWh battery:
| Charger Type | Charging Power | Estimated Charging Time (0-100%) |
|---|---|---|
| 3kW Charger (Three-pin plug) | 3kW | Up to 20 hours |
| 7kW Charger (Single-phase) | 7kW | Around 8-9 hours |
| 22kw Home Charger (Three-phase) | 22kW | As little as 3 hours (depending on the car’s maximum charging rate) |
The 22kW charger really comes into its own in this situation.
Installation and Safety
Never attempt to install a 22kw home charger yourself. It must be carried out by a qualified electrician, such as IConduit Electric, who is certified to install EV chargers and can ensure everything is connected safely and in compliance with local regulations.
The installation process often involves assessing your home’s electrical system, potentially upgrading your fuse board and wiring. Don’t worry if all of this sounds a bit technical, your chosen electrician will be able to advise you throughout the entire process. They will take into consideration your home’s unique electrical infrastructure and your EV’s charging needs.
Government Grants for EV Chargers
Here’s another point worth mentioning. Under the UK Government’s Electric Vehicle Homecharge Scheme (EVHS), you can receive a grant of up to 75% of the EV charger’s cost, capped at £350 per installation.
Choosing the Right 22kW Charger
Several factors are worth bearing in mind, aside from whether or not a 22kW charger is actually right for you:
Smart Features
Some models can connect to Wi-Fi, enabling you to monitor and control your charging remotely. Look for features like scheduled charging, allowing you to take advantage of lower off-peak electricity tariffs. Many chargers also offer app integration. The Pod Point App is one of many that allow you to remotely schedule your charging and download itemized charging reports.
Cable Length
Make sure you choose a charger with a cable long enough to reach from the charging point to your EV’s charging port. This may seem obvious but you’ll kick yourself if you overlook it. Ideally, there should be enough slack in the cable for easy plugging and unplugging. No one wants a charging cable that leaves you doing a tightrope walk just to connect your EV.
Durability
Look for a charger that’s weatherproof (if it’ll be exposed to the elements) and made from durable materials.
FAQs About 22kW Home Charger
Can I Get a 22kW EV Charger at Home?
Yes, but it’s best to consult a qualified electrician team like ours to assess if your home’s electrical system can accommodate a 22kW charger. Factors like your electricity supply and vehicle compatibility come into play. They can guide you through the process.
Can You Use a 7kW Cable on a 22kW Charger?
This depends on the specific cable and charger compatibility. Always consult your charger and cable documentation for information on supported charging rates. Generally, while it might seem tempting, it’s crucial to ensure your cable is rated for the power output of your EV charger to prevent overheating and potential risks. Using incompatible equipment might void warranties or even create safety hazards.
How Fast is 22kW Home Charger?
A 22kW home charger is significantly faster than a standard 7kW charger, usually providing about three times the charging speed, though it depends on factors like your car’s maximum charge rate and your home’s electrical supply. A 22kW charger utilizes three-phase power, enabling a faster flow of electricity, and reduces charging times considerably for compatible vehicles. It’s like switching from a standard garden hose to a fire hose for filling a pool.
Does a 22kW Charger Need 3 Phase?
Yes, a 22kW charger needs a 3-phase power supply to operate at its full potential. A three-phase supply provides more power than a single-phase, allowing for these rapid charging times. If you’re considering a 22kW EV charger, it’s essential to check your electricity meter or contact your local DNO. They’ll guide you on the availability of a 3-phase connection in your area.
Conclusion
Choosing a 22kW charger for your electric car requires understanding the compatibility of your property’s electrical infrastructure and the car’s capacity to use such charging power. This includes considering your electrical supply and your vehicle’s capabilities. If the stars align, then the faster charging, convenience and potential for future-proofing that a 22kw home charger offers make it an EV game-changer.
If you’re looking for EV charger installation in Exeter, then get in touch with our team of Exeter electricians! We can help guide you through the process of what’s possible in your situation, giv e you a free quote and peace of mind.
