EV home charging: costs, installation, and smart optimisation

Charging your electric vehicle (EV) at home is generally the most convenient and cost-effective way to keep it powered in the UK. This guide breaks down everything you need to know about setting up and optimising your home EV charging, from understanding charger types and installation costs to leveraging government grants and smart energy management to save money.

Fuse Energy empowers EV owners to take control of their home charging. Discover how you can manage your energy and potentially reduce costs by clicking here to get started.

Understanding EV home charging

The benefits of charging at home

Home charging offers unparalleled convenience, allowing you to plug in overnight and wake up to a fully charged vehicle, much like charging a mobile phone. It eliminates the need for frequent trips to public charging stations and often proves more economical in the long run. By charging at home, you gain control over your energy costs, especially when you can take advantage of cheaper off-peak electricity rates.

Key considerations for your home setup

Before installing an EV charger, assess your home's electrical capacity and parking arrangements. Most homes can accommodate a standard 7 kW charger, but it is crucial to ensure your electrical supply can handle the additional load without issues. Consider where your vehicle is typically parked and how close that location is to your main fuse board to minimise installation complexity and cost.

Types of home EV chargers

Home EV chargers come in various speeds and configurations, designed to suit different needs and vehicle types.

Slow (3.6 kW) chargers

A 3.6 kW charger, sometimes referred to as a "slow" charger, typically adds around 10-15 miles of range per hour of charging. While slower, it can still fully charge a typical 60 kWh EV battery overnight, taking approximately 16-18 hours. These chargers are suitable for those with shorter daily commutes or who primarily charge overnight.

Fast (7 kW) chargers

Most home EV chargers installed in the UK are 7 kW "fast" chargers. These units can add roughly 20-30 miles of range per hour, meaning a typical 60 kWh EV battery can be fully charged in about 8-9 hours. This makes them ideal for overnight charging, ensuring your vehicle is ready for longer journeys each morning.

Untethered vs tethered chargers

Untethered chargers come without an attached cable, allowing you to use your car's own charging cable. This offers flexibility if you own multiple EVs with different connector types (Type 1 or Type 2). Tethered chargers, on the other hand, have a cable permanently attached, providing a convenient "plug and play" experience without needing to retrieve the cable from your boot every time. The choice often comes down to personal preference and vehicle compatibility.

EV charger installation: process and costs

Installing an EV charger at home is not a DIY task; it requires professional expertise to ensure safety and compliance.

What does installation involve?

The installation process typically begins with a site survey by a qualified electrician to assess your home's electrical system and determine the best location for the charge point. This includes checking your main fuse board, earthing arrangements, and cable routing. All home EV charge point installations in the UK must comply with the IET Wiring Regulations (BS 7671) and be carried out by a qualified, certified electrician.

Average installation costs

The average cost for a home EV charger installation in the UK typically ranges from £800 to £1,200, before any grants. This cost covers the charger unit itself, labour, and any necessary electrical upgrades to your home. Obtaining multiple quotes from reputable, certified installers is always recommended to ensure you get a competitive price and a high-quality service.

Electrical requirements

Your home's electrical supply needs to be robust enough to handle the continuous load of an EV charger. A dedicated circuit is usually required, and in some cases, an upgrade to your property's main fuse board may be necessary. These requirements are assessed during the initial site survey by your installer.

Government grants for home EV chargers

Government support can significantly reduce the upfront cost of installing a home EV charger.

The EV chargepoint grant

The UK government offers the EV chargepoint grant, which can provide up to £500 towards the cost of purchasing and installing a home EV charge point for eligible households. This grant aims to make home charging more accessible.

Eligibility criteria

The EV chargepoint grant is subject to specific eligibility criteria. It is primarily available to those who own and live in a flat, or rent any residential property, provided they have private off-street parking. There is also a grant for households with on-street parking who are installing a cross-pavement solution. Owner-occupiers in a house with private off-street parking are not eligible for any current domestic chargepoint grant. It is important to check the latest government guidance to confirm your eligibility before applying.

How to apply

To apply for the grant, you must complete an online application via the GOV.UK website. The Office for Zero Emission Vehicles (OZEV) authorised installer's role begins after your application is approved. The installer does not handle the paperwork or deduct the grant amount from your invoice directly; the customer applies themselves.

Optimising your EV home charging for cost savings

The true cost-effectiveness of home EV charging comes from smart management, particularly by leveraging electricity tariffs.

Leveraging off-peak tariffs

The cost to fully charge a typical 60 kWh electric vehicle battery at home can range from approximately £3 to £18, depending on your electricity tariff and charging time. The most significant savings come from charging during off-peak hours, when electricity rates are considerably lower. Many energy suppliers offer dual-rate tariffs designed for this purpose, providing cheaper electricity during specific overnight windows. You can learn more about these options in our guide to EV tariffs explained.

Smart charging features

Modern EV chargers often come with "smart" features that allow you to schedule charging sessions via a dedicated app. These features enable you to automatically start charging when off-peak rates begin and stop when your battery is full or when peak rates resume. This ensures you are always charging at the cheapest times without manual intervention.

Integrating with home energy management

For maximum savings and control, consider integrating your EV charging with broader home energy management systems. This allows you to monitor your overall electricity consumption, including your EV, and make informed decisions about when to use high-energy appliances. The average UK home uses around 2,500 kWh of electricity per year, so understanding your total energy footprint is key to effective management.

Choosing the right electricity tariff

Selecting the right electricity tariff is paramount for cost-effective EV home charging.

Dual-rate tariffs explained

Dual-rate tariffs offer different prices for electricity depending on the time of day. Typically, electricity is cheaper during off-peak hours (usually overnight) and more expensive during peak times. While a smart meter can facilitate accurate recording, eligibility for dual-rate tariffs depends on your meter's Standard Settlement Configuration (SSC), and some manual dual-rate meters can also be eligible. A smart meter installation can help you track your usage more effectively.

How Fuse helps you maximise savings

Fuse empowers EV owners to take control of their home charging, turning it into a source of savings and convenience rather than a burden. The Fuse app allows you to connect your existing EV charger and intelligently manage charging schedules to leverage off-peak rates. By optimising when your EV charges, Fuse contributes to a more efficient and stable grid, aligning with its mission to build a future of energy abundance. Fuse challenges the idea that EV charging must be expensive or complicated, offering tools to make it smart and cost-effective for everyone.

Future-proofing your charging setup

As the energy landscape evolves, future-proofing your charging setup means choosing smart, flexible solutions. Opt for chargers with open connectivity that can integrate with various energy management platforms. This flexibility will allow you to adapt to new tariffs, grid services, and energy-saving technologies as they emerge, ensuring your home charging remains efficient and economical for years to come.

Managing your energy bills should be clear and easy to understand. Fuse Energy focuses on straightforward pricing, so you can see exactly what you are paying without unnecessary complexity. If you have a smart meter, you can view detailed usage data through the app or website, helping you understand how you can lower your bills. If you do not have a smart meter, Fuse Energy can upgrade your non-smart meter, completely for free. This can make it easier to track spending and make informed decisions about your energy use. Our 24/7 human support team is always on hand with fast response times whenever you need help. Click here to switch to Fuse Energy today. Find out about our mission by clicking here.