Guide to Electric Car Charging and Ownership

Filling up with fuel is simple, but charging an electric car (EV) requires a bit more thought and planning. While different connectors and apps can seem complex, this guide aims to simplify the process and free you from the “tangled mess” of charging cables.

Charging at home

Charging at home is the most convenient and typically the cheapest way to keep your vehicle topped up. It is often compared to having your very own petrol station at your front door.

• Convenience: Pull up to your house, schedule, plug in, and forget about it.
• Cost Savings: Relying primarily on public rapid charging can increase your bill by around 70%.
• Special Tariffs: Home charging allows you to access EV-specific tariffs, like Intelligent Octopus Go, which can offer rates as low as 7p/kWh.
• Smart Control: Most home chargers allow you to start, stop, and schedule charges remotely via a smartphone app.

A modern home EV charger mounted on an external brick wall next to a parked car.

EV charger types and cables

Home chargers come in two main styles:

• Tethered: Features a permanently attached cable.
• Untethered: Features a socket for you to insert your own separate cable.

Power and Speed

The speed of your charge depends on your home’s power supply:

• 3-pin Plug (2.3kW): ‘Granny chargers’ add approximately 7 miles of range per hour.
• Single-Phase (7.4kW): The most common UK home setup, adding about 30 miles of range per hour.
• Three-Phase (22kW): Faster (90 miles per hour), but often costly to install in residential properties.

While a domestic socket works, a dedicated home charger is roughly three times faster. Most UK homes use single-phase power; upgrading to three-phase for faster 22kW charging can be costly.

Ensure your EV charging cable, whether tethered or untethered, is long enough to reach your vehicle without dragging on the ground. If purchasing a separate cable for an untethered charger, confirm it supports your home charger’s maximum charging speed, which is typically indicated on the side of the cable.

Browse our cables

Permissions and Costs

To install a home charger, your home must be a permanent structure. While driveways are ideal, solutions exist for those with off-street or on-street parking, though you should consult your local council for approval in on-street scenarios.

If you live in a rented property, you must obtain written permission from your landlord before installation. All owners must also get approval from their local Distribution Network Operator (DNO), a process usually handled by the installer. A typical installation costs between £800 and £1,200.

Public and workplace charging

While home charging is the “foundation,” public and workplace infrastructure support longer journeys and commuters.

• Workplace Charging: Employers can use the Workplace Charging Scheme (WCS) to help fund the installation of up to 40 sockets. The Government’s Workplace Charging Scheme (WCS) provides vouchers to help businesses install sockets, making commuting more viable for those living far away.

• Public Rapid Chargers: Found at service stations, these units can provide an 80% charge in as little as 15 minutes. Major operators include Gridserve, BP Pulse, and Tesla
• Payment: Since late 2024, new public chargers over 8kW must offer contactless payment solutions, removing the absolute need for multiple apps.

Illustrating EV Charging Locations Across the Electricity Supply Network

EV charge connectors

While there is no single universal connector yet, the industry has largely standardised for modern vehicles.

• Type 1: EV chargers (SAE J1772) are 5-pin, single-phase AC connectors primarily used for older, Asian, or imported electric vehicles in the UK, such as early Nissan Leafs and Mitsubishi Outlanders. They offer 3.7kW–7.4kW charging speeds and feature a manual latch.
• Type 2: Chargers are the standard 7-pin connector for AC charging in the UK and Europe, suitable for home wall boxes and public slow/fast charging up to 22kW (max in some cases). They feature a 7-pin design with locking pins for safety and are compatible with most modern EVs, including Tesla, VW, and Kia.

• CCS: The Combined Charging System (CCS), specifically CCS Combo 2, is the standard rapid charging method for most new electric vehicles (EVs) in the UK. It combines AC and DC charging in one plug, delivering up to 350kW, making it ideal for motorway services and public rapid charging. The most popular connector for DC rapid charging.
• CHAdeMO: A rapid connector found on some older or specific Japanese-developed DC rapid charging standard (up to 50kW–100kW+), primarily used in the UK for older Nissan Leaf, Mitsubishi Outlander PHEV, and Kia Soul EV models.

A side-by-side comparison showing the visual differences the different types of chargers

Maximizing range and battery health

Most modern EVs offer a range of 150 to 350 miles. To get the most out of your battery and ensure its longevity, consider these habits:

• The 80% Rule: For daily use, set your charge limit to 80% to reduce battery wear. Save 100% charges for long trips.
• Regenerative Braking: This feature converts kinetic energy into electricity while braking, flowing it back into the battery.
• Preconditioning: Heat or cool your car while it is still plugged into the grid to save battery energy for driving.
• Smooth Driving: Avoid harsh acceleration to conserve range.
• The distance your car can cover on one charge: Understanding your daily needs enables you to make precise calculations, helping you avoid overpayment or shortages.

How much does it cost to charge an EV at home?

Charging an electric vehicle (EV) at home is generally the most cost-effective way to stay powered up. On average, a full charge can cost between £4 and £20, though this depends heavily on your vehicle’s battery size, your specific energy tariff, and when you charge (peak vs off-peak hours)

In the UK, the average electricity price is around 27p per kWh. Based on this rate, fully charging a typical EV with a 60kWh battery would cost approximately £16–£18.

Many energy providers offer EV tariffs with significantly cheaper overnight electricity rates. Some tariffs drop to around 7p per kWh during off-peak hours. With one of these tariffs, charging the same 60kWh battery could cost as little as £4–£5 per full charge.

Cost Per Mile

When charging at home, EV drivers typically spend:

• Off-peak tariffs – cost 2–3p per mile
• Standard electricity tariffs – cost 6–8p per mile

In comparison, a petrol car often costs 17–20p per mile in fuel. This means EV drivers charging at home can save over £1,000 per year compared to running a petrol vehicle.

Electric car charging points

• Zap-Map offers a helpful mobile app that allows drivers to easily locate electric vehicle charging points across the UK.

Most electric vehicles also feature built-in navigation systems that identify nearby charging stations and guide drivers to those within range. Some models go a step further by including route-planning tools that automatically map out charging stops for longer journeys and estimate how long you need to charge at each point to reach your destination efficiently.

A close-up of a car’s infotainment screen showing a charging limit set to 80%.

Financial assistance (OZEV Grants)

The government provides some financial support for installation via OZEV (formerly OLEV).

• The Grant: Offers up to £350 towards a home charger, rising to £500 from 1 April 2026 or 75% off the cost of buying and installing electric vehicle (EV) charge points for renters, flat owners and landlords.
• Eligibility: Currently limited to those in rental properties, flats, or those needing specialized cross-pavement solutions for on-street parking.

Latest OZEV grant information

Starting from 1st April 2026, the UK government is significantly updating the Office for Zero Emission Vehicles (OZEV) grant landscape. The most notable change is a 40% increase in the standard grant amount for most applicants.

The primary goal of these changes is to reduce the upfront cost of home and workplace charging, covering almost half the cost of a typical installation.

OZEV grants available from 1 April

For the majority of eligible applicants, the maximum grant per socket is increasing to help keep pace with installation costs.

Applicant Type	Current Grant	New Grant (from 1st April 2026)
Renters & Flat Owners	£350	£500
Residential Landlord Chargepoint Grant	£350	£500
Households with On-Street Parking	£350	£500
Workplace Charging Scheme (WCS)	£350	£500
WCS for state-funded education institutions	£2,500	– £2,000 (reduced)

 

Grant changes

·        Homes

The maximum grant rate for these schemes will increase from £350 to £500 per socket. Residents and landlords applying from 1 April 2026 will be eligible for up to £500 per socket.

• Workplaces

The maximum grant rate for the WCS will increase from £350 to £500 per socket.

Businesses and other workplaces will be eligible for up to £500 per socket for installations completed from 1 April 2026, regardless of when they applied for a grant.

·        Schools and Education

The maximum grant rate for the WCS grant for state-funded education institutions will decrease from £2,500 to £2,000 per socket.

Education institutions applying from 1 April 2026 will be eligible for up to £2,000 per socket. Applications before 1 April 2026 will remain eligible for £2,500 per socket if vouchers are redeemed before 30 September 2026.

Grants closing on 31 March 

OZEV is consolidating eight schemes down to five to simplify the system. The following grants will close on 31st March 2026:

• Commercial Landlord Grant: Landlords of commercial properties must apply by the March deadline.
• Residential Landlord Infrastructure Grant: (Note: The per-socket grant remains, but the larger-scale infrastructure funding is ending).
• Staff & Fleet Infrastructure Grant: Specific funding for larger-scale workplace infrastructure.

New find a grant service for flats, renters and residential landlords.

When the new service opens on 1 April 2026, there will be some changes to the way the flats and renters grant and residential landlord grant are applied for, claimed and processed. This will mean that:

1. Customers will need to register for a Find a grant account to apply   
2. Customers will apply for the flats and renters grant directly, rather than being sent a link by their installer 
3. Customers and installers will be notified by email if an application is successful and sent the terms and conditions for the grant scheme
4. Installers will be provided with a link to a digital form to claim the grant
5. Installers will receive email notifications when a claim is rejected for further evidence, declined or approved, and will need to keep track of this – there will not be a portal where installers can check the status of their claims

Transition: The old portal closes to new applications on 31st March. If you apply before April but don’t finish the installation, you can reapply via the new system to benefit from the higher £500 rate.

Timescales for assessing applications and claims  

Initially, we estimate that it will take up to 10 working days to assess applications and claims submitted on Find a Grant.  

At Ocunio Energy, our electricians are OZEV-approved, so we can take away the hard work from you and apply for a grant on your behalf.

OZEV Grants