What a commercial EV charger is and why it matters to your business
A commercial electric car charger is a permanently installed charging station designed to serve multiple vehicles over time, typically located at workplaces, retail centres, parking facilities, or fleet depots. Unlike a home charger that serves one household, a commercial unit handles higher power delivery, more frequent use, and often requires three-phase electrical infrastructure to operate safely and efficiently.
The difference between commercial and home charging comes down to power and purpose. A Level 2 home charger delivers 7 to 10 kilowatts and takes 8 to 12 hours to fully charge a vehicle. A commercial Level 2 charger delivers 19 to 22 kilowatts and cuts that time roughly in half. A DC fast charger—the most powerful commercial option—delivers 50 to 350 kilowatts and can add 200 miles of range in 20 to 30 minutes. That speed matters when your chargers need to serve dozens of vehicles daily instead of one car overnight.
Installing a commercial charger affects your electrical infrastructure, your operating costs, your liability, and your ability to attract and retain staff or customers. Understanding how these systems work helps you choose the right one for your actual use case rather than buying more power than you need or less than your site demands.
Key Takeaways
- Commercial chargers come in three power levels—Level 2, Level 3 DC fast charging, and ultra-fast DC—and the right choice depends on how long vehicles park at your site and how many you need to charge daily.
- Installation requires a site electrical assessment because commercial chargers need dedicated circuits, often three-phase power, and sometimes significant panel upgrades that can cost thousands of pounds before the charger itself is installed.
- Operating costs include electricity, maintenance contracts, and potential network subscription fees if you use a managed charging platform, and these vary widely by location and charger type.
- Your charger must comply with BS 7909 (electrical safety), BS EN 61851 (charging connector standards), and local building regulations, and you need public liability insurance that covers EV charging infrastructure.
- Chargers can be owned outright, leased, or installed by a third-party operator who handles maintenance and billing, and each model has different upfront costs and long-term responsibilities.
The three types of commercial chargers and what each one does
Level 2 chargers are the most common commercial option. They use the same 230-volt single-phase or three-phase supply as your building's main power, deliver 7 to 22 kilowatts depending on the model, and take 4 to 8 hours to fully charge a modern electric car. They are cheaper to install than DC fast chargers, require less electrical infrastructure, and work well at workplaces where vehicles stay parked for 6 hours or more, retail parks where customers spend 2 to 4 hours shopping, or apartment buildings where overnight charging is the norm. A typical Level 2 charger costs £3,000 to £8,000 before installation.
DC fast chargers (also called Level 3) use three-phase power and deliver 50 to 150 kilowatts, adding 100 to 200 miles of range in 20 to 40 minutes. They are essential at motorway service stations, rapid-charging hubs, and fleet depots where vehicles cannot wait hours between journeys. Installation is more complex—you may need to upgrade your electrical panel, run new three-phase lines, or even negotiate with your electricity distributor for a higher supply capacity. A DC fast charger unit costs £30,000 to £80,000 before installation, and installation itself can add £10,000 to £50,000 depending on your site's existing infrastructure.
Ultra-fast chargers deliver 150 to 350 kilowatts and are found mainly at dedicated charging hubs and motorway service stations. They require industrial-scale electrical infrastructure and are not practical for most business sites. Unless your site is a purpose-built charging facility or a major fleet depot, you will not need this category.
What the electrical installation actually involves
Before any charger goes in, a may have access to electrician must assess your site's electrical capacity. They will check your main distribution board (the fuse box), measure how much spare capacity you have, and determine whether your existing supply can handle the charger's power demand without overloading the system. A Level 2 charger drawing 22 kilowatts may fit into your existing supply if you have spare capacity; a DC fast charger drawing 100 kilowatts almost certainly will not.
If you do not have enough capacity, the electrician will quote you for an upgrade. This might mean installing a new dedicated circuit from your main board to the charger location (£1,000 to £3,000), upgrading your main board itself (£2,000 to £8,000), or requesting a higher supply from your electricity distributor (which can take weeks and cost £5,000 to £20,000 depending on your region and the distributor). These costs sit on top of the charger hardware and installation labour.
The installation itself must follow BS 7909 (electrical safety for temporary and permanent installations), BS EN 61851 (EV charging connector and safety standards), and your local building regulations. A may have access to installer will run the power cable, install any necessary isolation switches, fit the charger unit, test the system, and provide you with certification that proves the installation is safe. This work typically takes 1 to 5 days depending on the complexity of your site and the charger type.
Running costs and what affects them
The cost to run a commercial charger has three parts: electricity, maintenance, and network fees.
Electricity is the largest variable. A Level 2 charger delivering 20 kilowatts for 4 hours uses 80 kilowatt-hours of electricity. At current UK rates (which vary by region and supplier, typically 25p to 35p per kilowatt-hour for business), that single charge costs £20 to £28 in electricity alone. A DC fast charger delivering 100 kilowatts for 30 minutes uses 50 kilowatt-hours, costing £12.50 to £17.50 in electricity. If you operate 10 Level 2 chargers and each serves 3 vehicles per day, you are spending roughly £600 to £840 per week on electricity. Some businesses negotiate time-of-use rates with their supplier to charge vehicles during off-peak hours and reduce this cost.
Maintenance typically costs £200 to £600 per charger per year under a service contract, or you can pay per repair if something fails. Chargers are robust but do need regular checks—cable inspections, connector cleaning, software updates, and safety testing. If a charger fails and you do not have a contract, a repair call-out and parts can cost £500 to £2,000.
Network fees explore if you use a managed charging platform (such as Instacharge, Pod Point, or Chargemaster). These platforms handle billing, user authentication, payment processing, and remote monitoring. They typically charge a monthly subscription (£30 to £150 per charger) plus a per-use fee (5p to 15p per kilowatt-hour). If you own the charger outright and manage billing yourself, you avoid these fees but take on the administrative work.
Ownership models: buy, lease, or third-party operation
You have three ways to get a commercial charger on your site, each with different upfront costs and ongoing responsibilities.
Outright purchase means you buy the charger hardware and pay for installation. You own the asset, claim depreciation on your tax return, and keep all revenue if you charge customers for use. You also pay all maintenance, handle all billing and user support, and bear the risk if the technology becomes obsolete or the charger fails. Total first-year cost: charger (£3,000 to £80,000) plus installation (£1,000 to £50,000) plus electrical work (£1,000 to £20,000). Annual running cost: electricity plus maintenance (£200 to £600 per charger).
Leasing
Third-party operation
Safety, compliance, and insurance
A commercial EV charger is electrical equipment that the public or your staff will use, so it must meet strict safety standards. BS 7909 covers electrical safety for permanent installations and requires proper earthing, isolation switches, and regular testing. BS EN 61851 specifies the charging connector design, communication between charger and vehicle, and protection against electric shock. Your installer must be may have access to to work to these standards and provide you with a test certificate (an EICR—Electrical Installation Condition Report) that proves the installation is safe.
You also need public liability insurance that covers EV charging infrastructure. Standard business liability policies often exclude charging equipment, so you must tell your insurer you are installing a charger and confirm that your policy covers it. If someone is injured by the charger or damaged by it, your liability insurance protects you. Premiums vary but typically add £200 to £500 per year to your business insurance.
If you operate the charger as a public facility (charging customers or the public, not just your own fleet), you may need to register with your local authority or comply with accessibility regulations. Check with your local council planning department before installation.
Choosing the right charger for your site
The right charger depends on three things: how long vehicles park at your site, how many you need to charge daily, and your budget for installation.
If vehicles stay 6 hours or more (workplace, apartment building, overnight car park), a Level 2 charger is usually sufficient and costs less to install. If vehicles stay 1 to 4 hours (retail park, leisure centre), you need a faster charger—either a high-power Level 2 (19 to 22 kilowatts) or a DC fast charger. If vehicles stay less than 1 hour or you operate a charging hub, you need DC fast charging.
Calculate how many vehicles you expect to charge daily and how many chargers you need. If 20 staff arrive at 9 a.m. and leave at 5 p.m. (8 hours), two Level 2 chargers can serve them all. If 50 customers visit a retail park and stay 2 hours, you need at least 10 Level 2 chargers or 3 to 4 DC fast chargers to avoid queues. More chargers spread the load and reduce wait times but increase your installation and running costs.
Get quotes from at least two installers. Ask each one to assess your electrical infrastructure, quote the charger hardware, quote the installation labour, and quote any electrical upgrades needed. Compare the total first-year cost (hardware plus installation plus electrical work plus three months of running costs) and the annual running cost. Do not choose based on charger cost alone—a cheap charger on a site that needs expensive electrical work may cost more overall than a more expensive charger that fits your existing infrastructure.
Frequently Asked Questions
Can I install a commercial charger myself or do I need a may have access to electrician?
You must use a may have access to electrician registered with a competent person scheme (such as NICEIC or NAPIT). EV chargers are high-power electrical equipment and improper installation creates fire and electrocution hazards. Your installer must provide a test certificate proving the work meets BS 7909 and BS EN 61851.
What happens if my electrical supply is not strong enough?
Your distributor can upgrade your supply, but this takes time and costs money—typically £5,000 to £20,000 depending on your region. Alternatively, you can install a smaller charger that fits your existing supply, or use a managed charging system that spreads charging across multiple vehicles to avoid peak demand spikes.
Do I need planning permission to install a commercial charger?
Most chargers do not need planning permission if they are mounted on an existing building or in an existing car park. Check with your local planning authority before installation, especially if your site is listed, in a conservation area, or if the charger will be visible from the street.
Can I charge customers for using my charger?
Yes, if you own or operate the charger. You set the price per kilowatt-hour or per session. If you use a managed charging network, they typically handle billing and take a commission. If you own the charger outright, you can bill directly or use a payment system like a contactless card reader or mobile app.
What is the difference between a tethered and untethered charger?
A tethered charger has a cable permanently attached; users plug it into their vehicle. An untethered charger has a socket; users bring their own cable or use a cable they buy separately. Tethered chargers are more convenient but the cable can be damaged or stolen. Untethered chargers are cheaper but require users to have a compatible cable.