EV charging speeds: Comparing fast, rapid, and ultra-rapid charging

Essentially, they all do the same thing, they will charge your electric vehicle– but as the names suggest, the speed of charging varies. In short, fast chargers are AC powered and can go up to 22kW in power. While rapid and ultra rapid chargers are both DC powered and are considered to be 25-150kW and 150+ respectively.

Slow AC charging points: 2-7kW

Although not recommended, it is possible to plug your EV into a normal domestic 3 pin plug. This is very low energy, at speeds of 2.3kW, so will charge very slowly. It is possible but inefficient and can be dangerous. This type of charging offers no dedicated protection against power overloads, in some extreme cases can even cause risk of overheating if not handled properly. A dedicated home EV charge point solves these issues. They are safety certified and have a direct connection to your home’s electrical circuit, allowing it to carry much higher loads safely.

If access to a charge point is an issue, ubitricity has a solution. By converting existing street infrastructure like lampposts and bollards into charge points, they have provided “near home” charging to those without off-street or private parking. Found on roadsides, these low-cost charging options, typically with power of 5kW, are ideal for overnight charging. There are 7,000 in London, which you can locate with the Shell Recharge app.

Fast AC charging: 7kW - 22kW

Shell Recharge fast (AC) charging, sometimes referred to as regular, is a convenient and moderately quick charging option, ranging from 7kW to 22kW. You can find these chargers on-the-go, at shopping centres, car parks and cinemas but also at business locations. If you have a home charge point, it is most likely you will have a max charging speed of 7.4kW on a 1-phase power supply.

Striking a good balance between speed and convenience, fast charging is the best way to charge the majority of the time. Not least because you’ll pay less per kWh charging at these speeds than you will on rapid or ultra rapid charging. Fast charging is slower than DC charging but can still charge your battery sufficiently. Therefore, it is great for moments when you have a bit more time, maybe during a shopping trip or whilst you are at work. Or if at home, charging overnight when your car is sat idle is the perfect time to top up your battery levels.

Fast AC pricing

With home charging, the tariff will vary based on your energy supplier. Many suppliers offer two-rate tariffs with two different electricity rates depending on the time of day. Scheduling your charge sessions for “off peak” times, can save you money. However when charging in public, the following rates apply:

With a Shell Recharge card it costs £0.79/kWh and adhoc costs £0.79/kWh

Rapid DC charging: 25-150kW

This option takes charging speeds to the next level, providing power levels from 25-150kW. However, the most commonly used rapid charging speed is 50kW. Designed for those seeking a faster charge without sacrificing practicality, rapid charging offers a range of benefits that cater to different charging scenarios. In ideal conditions, you can recharge 20 to 80% in less than 60 minutes, using 50kW charging speeds. *

Like fast charging, you'll find rapid stations at various locations, making them well-suited for drivers embarking on longer journeys. These stations are strategically positioned at motorway services, forecourts, and other key travel points. The enhanced speed of rapid charging strikes a balance between reducing charging times and allowing you to take a well-deserved break during your travels. As a versatile option for those short on time or undertaking long-distance travel, showcasing that speed and convenience can coexist.

However, it's important to note that the effectiveness of rapid charging is often more pronounced in EVs with moderate battery sizes. These vehicles can capitalise on the higher power to achieve a significant charge boost in a relatively short period.

Rapid DC pricing

With a Shell Recharge card rapid charging costs £0.69-£0.93/kWh and adhoc costs £0.69-£0.93/kWh

Ultra rapid DC charging: 150+kW

For even faster charging, you will also find ultra-rapid 150kW and 175kW chargers at Shell forecourts. These are the fastest way to charge your electric vehicle and can deliver power up to three times faster than 50kW. Ultra-rapid charging is designed for lightning-fast recharging, in some cases, like with IONITY, reaching up to 350kW. These high-powered chargers can charge an electric vehicle faster than regular chargers – helping drivers get back to their journey sooner.

If you want to experience it in action, Shell converted one of their existing petrol sites to cater solely for EVs. The first-of-its-kind site in Fulham, London features nine high-powered, ultra-rapid 175kW charge points. In ideal conditions these can charge most vehicles** up to 80% within 30 minutes. Get comfortable in the seating area, whilst you take advantage of free Wi-Fi, the Costa Coffee cafe an Little Waitrose supermarket.

Ultra rapid DC pricing

With a Shell Recharge card ultra-rapid costs £0.69-£0.93/kWh and £0.69-£0.93/kWh if you pay ad hoc.

Our range of on-the-go fast, rapid, and ultra-rapid charge points, offers EV drivers a variety of speeds to suit their specific needs. However, the charging speed depends on your electric vehicle's maximum capability. Modern models of brands like Tesla, Porsche, Hyundai, and KIA can all take advantage of ultra-rapid charging.

It's crucial to understand each charging option to make an informed decision because ultimately, very EV driver has different needs. On long journeys, when you need to get back on the road quickly, rapid/ultra rapid charging (DC) is the sensible choice. However, if your vehicle can't make use of rapid charging speeds, attempting to use a cutting-edge 350kW charger would be futile, as the charge point won't reach its maximum charging speed. There are actually many factors that can affect the actual charging speed of your EV. Day to day cars often spend most of their time parked, either on a drive, car park or roadside. It is at these times when it is easier and more cost-effective for EV drivers to use fast or lamppost charging points (AC). Ultimately, whether you value convenience, cost, or speed, the Shell Recharge offering has all your preferences covered.

To find out how quickly your EV can charge visit our EV database.