22kW Charging Guide: Everything You Need to Know.

Fast, efficient charging is crucial for electric vehicle (EV) drivers, especially for businesses and organisations operating fleets. 22kW charging offers a sweet spot between the convenience of home charging and the rapid speeds of DC fast charging. This comprehensive guide delves into the world of 22kW charging, covering everything from its benefits and technical specifications to installation considerations and future trends.

22kW Charging Guide: Everything You Need to Know

What is 22kW Charging?

22kW charging, also known as Level 2 charging, provides a significantly faster charging experience compared to standard 7kW home charging. It delivers alternating current (AC) power to your EV, typically through a dedicated charging station. This speed makes it ideal for workplaces, public car parks, and fleet depots where vehicles need to be topped up efficiently during the day.

Comparing 22kW Chargers: Autel MaxiCharger and Others

The market offers a range of 22kW chargers. A popular choice is the Autel MaxiCharger, known for its sleek design and smart features. When comparing, consider factors like:

  • Charging Speed: Ensure the charger delivers the full 22kW.
  • Connectivity: Wi-Fi, Ethernet, and mobile app connectivity for remote monitoring and control.
  • User Interface: Ease of use for both administrators and EV drivers.
  • Price and Warranty: Compare pricing and warranty options across different brands.
  • Load Balancing: Essential for managing multiple charging stations efficiently.
  • Dynamic Load Management: Adapts to available power to prevent overloading the electrical circuit.

Installing a 22kW Charging Station

Installing a 22kW charger typically requires a qualified electrician. The process involves:

  • Site Survey: Assessing the electrical infrastructure and determining the optimal location for the charging station.
  • Electrical Upgrade: Upgrading the electrical supply to support the 32A three-phase power requirement.
  • Cable Installation: Running dedicated cabling from the distribution board to the charging station location.
  • Charger Installation and Commissioning: Mounting the charger, connecting the cabling, and testing the installation.

22kW Chargers and Load Balancing

Load balancing is crucial when installing multiple 22kW chargers to prevent overloading the electrical supply. It intelligently distributes available power across multiple charging points, ensuring efficient and safe operation.

22kW EV Chargers for Businesses

22kW chargers are an excellent solution for businesses with EV fleets or those looking to offer charging facilities to employees and customers. The benefits include:

  • Improved Efficiency: Faster charging minimises downtime for fleet vehicles.
  • Enhanced Sustainability: Demonstrates a commitment to environmental responsibility.
  • Attracting and Retaining Employees: Offering EV charging as a perk can attract and retain talent.
  • Generating Revenue: Businesses can charge for public access to their 22kW charging stations.

The Future of 22kW Charging

22kW charging is set to play a significant role in the future of EV infrastructure. As battery technology advances and vehicle ranges increase, the demand for faster and more efficient charging solutions will continue to grow.

Government Grants and Incentives for 22kW Charging

Various government grants and incentives are available in the UK to support the installation of 22kW charging stations. These schemes aim to encourage the adoption of electric vehicles and expand the charging infrastructure. Research the latest available schemes to see if you’re eligible.

22kW Charging vs. Other Charging Options

Here’s a comparison of 22kW charging with other common EV charging options:

Feature7kW Home Charging22kW Charging50kW DC Fast Charging
Power Output7kW22kW50kW
Charging SpeedSlowestMediumFastest
Cost of InstallationLowestModerateHighest
Ideal LocationHomeWorkplace, Public Car ParksMotorway Service Stations
Connector TypeType 2Type 2CCS, CHAdeMO

Frequently Asked Questions (FAQs)

Q: What type of cable do I need for 22kW charging?

A: You’ll need a Type 2 cable capable of handling 32A.

Q: How long does it take to charge an EV with a 22kW charger?

A: Charging time depends on the battery size and the EV’s onboard charger. A typical EV with a 60kWh battery could charge from 20% to 80% in around 2-3 hours.

Q: Do I need a special meter for 22kW charging?

A: Your electrician will assess your existing electrical supply and advise if a meter upgrade is necessary.

Q: Can I install a 22kW charger at home?

A: While technically possible, 22kW charging is less common at home due to the higher power requirements and cost. 7kW charging is typically sufficient for home use. This article specifically avoids home charging as requested.

Q: What is load balancing?

A: Load balancing is a system that manages the power distribution to multiple charging points, preventing overload and optimising charging speeds.

Q: Are there any government grants available for 22kW charging installations?

A: Yes, various government grants and incentives are available in the UK. Check the Office for Zero Emission Vehicles (OZEV) website for the latest information.

Q: What is the difference between AC and DC charging?

A: AC charging delivers alternating current, which the car’s onboard charger converts to DC to store in the battery. DC charging delivers direct current directly to the battery, bypassing the onboard charger and enabling faster charging speeds.

Q: How much does it cost to install a 22kW charger?

A: The cost varies depending on factors like site specifics, electrical upgrades, and charger model. Consult with a qualified electrician for a tailored quote.

Q: What maintenance is required for a 22kW charging station?

A: Regular visual inspections and occasional cleaning are recommended. Professional maintenance may be required periodically.

Q: Is 22kW charging suitable for all EVs?

A: Not all EVs can accept a full 22kW charge. Check your vehicle’s specifications to determine its maximum AC charging rate.

Q: What is the difference between tethered and untethered chargers?

A: Tethered chargers have the cable permanently attached, while untethered chargers require the driver to use their own cable.

Q: How do I find a qualified electrician to install a 22kW charger?

A: Look for electricians certified to install EV charging points, such as those approved by the Office for Zero Emission Vehicles (OZEV).

Compare Autel’s 22kW Charging Range.

Autel offer a range of 22kW EV Charging Solutions from single to dual pedestals including with or without Payment terminals.

AC Ultra Dual 22kW

Environmental Specifications

Humidity
≤95 % RH, non-condensing
Operating Altitude
2000m
Operating Temperature Range
-40°C ro +55 ℃
Storage Temperature Range
-40°C to +85 ℃
Noise
≤ 65 dB(A)
Compliance and Safety
IEC/EN 61851-1; EN 62311; EN 62479; IEC/EN 62955
Certification
TÜV; CE; UKCA

User Interface

Status Indication
APP; LCD (8-inch touch screen, 1280*720)
Languages
English, French, Spanish, German, Italian (others available via software upgrade)
Credit Card Readers
Nayax Onyx
RFID Protocols
ISO 15693; ISO 14443
Payment Terminal
AutoCharge; Plug & Charge; APP; RFID card; QR code; Credit Card (Optional)
Communication Protocols
OCPP 1.6 & OCPP 2.0.1

General Specifications

Dimensions (WxDxH)
Wall Mounted 320 × 170 x 625 mm ; Pedestal 360 x 197 mm x 1440mm
Colour
White Plastic
Connectivity
Wi-Fi (802.11 a/b/g/n; frequency: 2.4 GHz), 4G, Ethernet, RS485
Screen Type
8 inch touch screen, 1280*720
Current Type
Mode 3 (AC)
Enclosure Rating
IP54; IK10
Communication to the EV
ISO/IEC 15118
Software Update
OTA updates via web portal
Emergency Button
No
Warranty
36 months, warranty extension possible
Weight
Wall Mounted – 15.4 kg; Pedestal Mounted – 33.6kg
Mounting
Wall Mounted (Optional Pedestal)
Internal RCD
Installed Upstream
Protection
Overcurrent, overvoltage, undervoltage, integrated surge protection

Output

Output Power
2 * 22kW
Minimum Adjustable Power
7Kw
Output Voltage
400 V±15%, L1, L2, L3, N, PE
Output Current
2*22 kW/32 A
Peak Efficiency
96%
Number of Outputs (Max.)
2
Charging Mode
2 * IEC 62196 Type 2 socket or socket with shutter
Supply Configuration
3P + N + PE

Input

Input Voltage
230 V ± 10%, single-phase; 400 V ± 15%, three-phase
Input Frequency
50 Hz
Earthing System
TT; TN; IT
Power Factor
≥0.99
Harmonic Distortion (THDi)
<5%

AC Ultra Street Dual 22kW

Environmental Specifications

Humidity
≤95 % RH, non-condensing
Operating Altitude
2000m
Operating Temperature Range
-30 ℃ to +50 ℃
Storage Temperature Range
-30 ℃ to +70 ℃
Noise
≤ 65 dB(A)
Compliance and Safety
IEC/EN 61851 1; EN 62311; EN 62479; IEC/ EN 62955; NEN EN IEC 61439-7
Certification
CE

User Interface

Status Indication
APP; LCD (8-inch touch screen, 1280*720); MaxiCloud Patform
Languages
English, French, Spanish, German, Italian (others available via software upgrade)
Credit Card Readers
Payter Apollo
RFID Protocols
ISO 15693; ISO 14443
Payment Terminal
AutoCharge; Plug & Charge; APP; RFID card; QR code; Credit Card (Optional)
Communication Protocols
OCPP 1.6 & OCPP 2.0.1

General Specifications

Dimensions (WxDxH)
310 × 200 x 1450 mm
Colour
Gun Metal Gray Steel
Connectivity
Wi-Fi (802.11 a/b/g/n; frequency: 2.4 GHz), 4G, Ethernet, RS485
Screen Type
8 inch touch screen, 1280*720
Current Type
Mode 3 (AC)
Enclosure Rating
IP54; IK10
Communication to the EV
ISO/IEC 15118
Software Update
OTA updates via web portal
Emergency Button
No
Warranty
36 months, warranty extension possible
Weight
42kg
Mounting
Floor Standing
Internal RCD
Installed Upstream
Protection
Overcurrent, overvoltage, undervoltage, integrated surge protection

Output

Output Power
2 * 22kW
Minimum Adjustable Power
7Kw
Output Voltage
400 V±15%, L1, L2, L3, N, PE
Output Current
2*22 kW/32 A
Peak Efficiency
96%
Number of Outputs (Max.)
2
Charging Mode
2 * IEC 62196 Type 2 socket or socket with shutter
Supply Configuration
3P + N + PE

Input

Input Voltage
230 V ± 10%, single-phase; 400 V ± 15%, three-phase
Input Frequency
50 Hz
Earthing System
TT; TN
Power Factor
≥0.99
Harmonic Distortion (THDi)
<5%

MaxiCharger 22kW

Environmental Specifications

Humidity
≤95 %
Operating Altitude
2000m
Operating Temperature Range
-40°C ~ + 55°C
Storage Temperature Range
-40°C ~ + 85°C
Noise
≤ 65 dB(A)
Compliance and Safety
EN/IEC 61851-1, EN/IEC 62196-2, EN/IEC 62955, BS7671
Certification
TÜV; CE; UKCA

User Interface

Status Indication
APP; LED Lights
Languages
English (UK Version)
RFID Protocols
ISO 15693; ISO 14443
Payment Terminal
App/RFID/QR Code
Communication Protocols
OCPP 1.6 & OCPP 2.0.1

General Specifications

Dimensions (WxDxH)
187mm x 85mm x 336mm
Colour
Grey Plastic
Connectivity
Wi-Fi (802.11 a/b/g/n; frequency: 2.4 GHz), 4G, Bluetooth, Ethernet
Current Type
Mode 3 (AC)
Enclosure Rating
IP54; IK08
Communication to the EV
ISO/IEC 15118
Software Update
OTA updates via web portal
Emergency Button
No
Warranty
36 months, warranty extension possible
Weight
3.92kg
Mounting
Wall Mounted (Optional Pedestal)
Internal RCD
AC 30mA, DC 6mA
Protection
Overcurrent, overvoltage, undervoltage, integrated surge protection, PME

Output

Output Power
22kW
Minimum Adjustable Power
3.4Kw
Output Voltage
400 V±15%, L1, L2, L3, N, PE
Output Current
1*22 kW/32 A
Peak Efficiency
96%
Number of Outputs (Max.)
1
Charging Mode
1* IEC 62196 Type 2 socket or socket with shutter
Supply Configuration
3P + N + PE

Input

Input Voltage
230 V ± 10%, single-phase; 400 V ± 15%, three-phase
Input Frequency
50 Hz
Earthing System
TT; TN
Power Factor
≥0.99
Harmonic Distortion (THDi)
<5%

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