Commercial EV Charger Installation in Bristol
If you’re weighing up commercial EV charger installation for a Bristol office, shop, trade yard or small industrial unit, the job is a different proposition to fitting one wallbox at a house. You’re usually looking at a three-phase supply, more than one charge point, load management between bays, and a decision that needs a proper written quote before anyone signs off the cost. We survey the site first, design the installation around how your staff, visitors or fleet actually use it, and hand over a fixed price with every circuit tested and certificated to BS 7671.
Bristol Phoenix Group is a NAPIT approved electrical contractor based in South Bristol, and workplace charging is one of the small commercial jobs we’re asked to quote most often, alongside office fit-outs, distribution board upgrades and commercial EICRs. This page covers what’s actually involved, what it tends to cost, and the regulations your installer needs to get right.
What commercial EV charger installation actually involves
No two commercial sites are the same, so we start with a survey rather than a quote. That’s the only way to give you a number you can actually rely on.
A proper supply and capacity survey
We check your incoming supply, existing distribution board, earthing arrangement and available capacity before we talk about chargers at all. Most offices and shops run on a single-phase supply that’s already close to its limit, and adding two or three 7kW charge points on top of lighting, catering equipment or air conditioning can mean a supply upgrade or a three-phase conversion is needed first. We’ll tell you if that’s the case and quote both jobs as one plan, the same way we approach any consumer unit or distribution board upgrade.
AC charging for staff, visitors and fleets
Most workplace charging in Bristol is AC, either 7kW on a single phase or up to 22kW on three phases per point. A single-phase 7kW point suits a slow overnight or all-day top-up for staff cars. Three-phase 22kW points make more sense where vehicles turn over during the working day, such as a visitor bay or a small company fleet. We’ll recommend the mix that suits how your vehicles are actually used, not the most expensive option on the shelf.
Load management across multiple bays
Fit more than one or two charge points and your incoming supply usually can’t give every bay its full rated output at the same time, especially at a site that’s also running everything else it needs to run. Dynamic load management hardware shares the available capacity across all the charge points in use, so you get more working bays from the supply you’ve already got, rather than paying for a bigger one you might rarely need in full.
Certification and notification
Every installation is tested and issued with an Electrical Installation Certificate, and notified to your District Network Operator where the work requires it. That paperwork matters for your insurer, your lease and any funding application, not just for us.
What’s included in a typical commercial installation:
- Site survey of supply, earthing and existing distribution board
- Design sized to your vehicles, bays and how the site is actually used
- Single-phase or three-phase AC charge points, one bay or several
- Load management hardware fitted where more than one point is installed
- Full testing and an Electrical Installation Certificate on completion
- DNO notification handled on your behalf
- Guidance on your Workplace Charging Scheme application, where you qualify
Getting the compliance right
EV charging has its own section of the UK wiring regulations, and a fair amount of it is easy to get wrong on a commercial site with multiple bays or outdoor parking. This is the part we’d want any installer to get right on our own premises, so it’s the part we take most seriously on yours.
RCD protection under BS 7671 Section 722
BS 7671 Section 722, the part of the IET Wiring Regulations covering electric vehicle charging installations, sets a minimum standard of RCD protection for every charge point. A Type A RCD is acceptable where the charger has its own built-in DC fault detection device. Without that feature, a Type B RCD is required instead, and an ordinary Type AC RCD, the type fitted in a lot of older consumer units, is not suitable for an EV charging circuit at all. We check what protection each charger already has built in before deciding what to add on the circuit feeding it, in line with the IET’s own guidance on EV charging installations.
Earthing on outdoor and car park charge points
Many commercial premises are supplied through PME earthing, known as TN-C-S, and BS 7671 restricts using that earthing arrangement directly at a charge point sited outdoors, such as in a car park, unless specific extra protection is in place. In practice that usually means an additional earth electrode, an open-PEN detection device built into the charger, or an equivalent protective method, confirmed at survey stage rather than assumed. Getting this wrong is one of the more common faults found on commercial charge point installations, and it’s not something a standard domestic-style install should be copied across without checking properly.
The Smart Charge Points Regulations
Charge points installed at workplaces since 30 June 2022 generally need to meet the Electric Vehicles (Smart Charge Points) Regulations 2021: default off-peak charging hours, a randomised start delay, and the ability to respond to demand signals. The regulations cover both domestic and workplace charge points but exclude public chargers and anything rated 50kW or above, and they apply in England, Wales and Scotland. Most commercial AC chargers sold today meet this as standard, but it’s worth confirming for any older stock being reused, as set out in the Electric Vehicles (Smart Charge Points) Regulations 2021.
Why the installer’s qualifications matter
Designing and installing domestic and small commercial EV charging safely is treated as its own area of competence, not just an extension of general electrical work. NAPIT and City and Guilds run a dedicated Level 3 award specifically in the design and installation of domestic and small commercial electric vehicle charging installations, on top of a standard electrical qualification, covering the design, testing and documentation points above. It’s worth asking any installer quoting for workplace charging whether they hold it, as detailed on NAPIT’s course page.
How we price commercial EV charger installation
Commercial EV charging doesn’t lend itself to a single headline price the way a domestic wallbox does, because the gap between a single office charge point and a six-bay fleet installation with load management and a supply upgrade is enormous. Published UK cost guides put a single installed 7 to 22kW AC commercial charge point at roughly £1,500 to £4,000, with a dual-socket unit nearer £2,500 to £5,000, according to recent research from Excel Energy and Swift Charging. Groundworks such as trenching and reinstating a car park surface typically add £500 to £3,000 or more per charger, and load management hardware for multi-point sites adds roughly £200 to £1,000 per charger on top of that.
| Scenario | Typical installed cost |
|---|---|
| Single 7 to 22kW AC point, straightforward supply | £1,500 to £4,000 |
| Dual-socket AC unit | £2,500 to £5,000 |
| Groundworks per charger (trenching, surface reinstatement) | £500 to £3,000+ |
| Load management hardware, per charger | £200 to £1,000+ |
| Small multi-bay site, several points, load managed | Several thousand to tens of thousands |
We price commercial EV charging the way we price every commercial job. We look at what’s actually there before we quote anything, the price we agree is the price you pay, and if we find something unexpected once we’re on site, we stop, explain it and agree any change with you before it costs you anything. Estimates are free, with no obligation.
Funding towards the cost
Eligible businesses can apply for the government’s Workplace Charging Scheme, which currently covers up to 75% of the purchase and installation cost of eligible charge points, capped at £500 per socket and up to 40 sockets per applicant. The scheme is due to run until 31 March 2027, and full details and eligibility are set out in the official Workplace Charging Scheme guidance. We’ll talk you through whether your site is likely to qualify when we survey.
Commercial EV charging across South Bristol
We’re based in South Bristol, and most of our commercial EV charging enquiries come from businesses along the Bedminster, Hengrove, Whitchurch and Airport Road corridor, plus the trading estates around Ashton Vale and Winterstoke Road. Office parks, trade counters, garden centres and light industrial units in these areas tend to share the same problem: ageing single-phase supplies that were never designed with EV charging in mind.
Demand is only going one way. Bristol City Council’s own climate strategy is built around 90% of car journeys in the city being electric by 2030, backed by a £3.1 million investment in expanding public charging infrastructure, according to the council’s climate action on transport strategy. Whatever view you take on the timeline, staff and visitors turning up in electric vehicles is already routine for plenty of Bristol businesses, and a site with nowhere for them to charge stands out for the wrong reasons.
If compliance testing for the same premises is also on your list, our commercial EICR service covers the rest of the installation, and our wider commercial electrician team handles fit-outs, board upgrades and fault finding on the same site if there’s more than charging to sort out.
Frequently asked questions
Do we need planning permission for workplace EV chargers in Bristol?
Most workplace charge point installations don’t need separate planning permission, but there are exceptions, including listed buildings, conservation areas and anywhere the equipment would sit on or over a public highway. We’ll flag anything that needs a planning check when we survey your site, rather than assume it doesn’t apply.
Is funding available to reduce the cost?
Many businesses qualify for the government’s Workplace Charging Scheme, worth up to 75% of costs and capped at £500 per socket, for up to 40 sockets. We’ll tell you at survey stage whether your business looks likely to be eligible.
Can you install and load-balance several charge points on one supply?
Yes. Load management hardware shares your available capacity dynamically across every bay in use, so you don’t need to pay for a full supply upgrade sized for every charger running flat out at once. We design this in from the first survey rather than adding it as an afterthought.
How is this different from your home EV charger service?
The equipment is similar, but the job isn’t. Our home EV charger installation service is built around a single wallbox on a domestic supply. Commercial sites usually involve three-phase supplies, several bays, load management and Workplace Charging Scheme paperwork, so we treat it as its own survey and its own design from the start.
Do the chargers need to meet the smart charging rules?
Generally yes. Charge points installed at workplaces are covered by the Electric Vehicles (Smart Charge Points) Regulations 2021, which set requirements for default off-peak charging hours and demand response. Most current commercial chargers meet this out of the box, and we’ll confirm it for your chosen equipment as part of the design.
Get in touch about commercial EV charger installation
If you’re weighing up charge points for a Bristol office, shop, trade site or small industrial unit, get in touch and we’ll arrange a survey. As a NAPIT approved contractor based in South Bristol, we’ll give you a straight answer on what your supply can take, what the job involves and what it’s likely to cost before anything is ordered. Contact us for a free quote, or call 0117 2447 382 to talk it through.