Commercial EV charging installation for business: the 2026 step-by-step guide
With one in three new cars sold in the UK in 2026 required to be zero-emission under the ZEV mandate, EV drivers are no longer a niche group of customers, tenants and staff. Businesses that offer charging keep those people on site longer, attract fleets, and in many cases make money from the electricity they sell. This guide walks through a commercial installation from first phone call to first charging session, so you know what to expect and what to ask.
Step 1 – Define what the chargers are for
Everything else follows from this. Ask: who will charge here, for how long, and who pays?
- Staff and fleet – long dwell time, predictable use. AC 7–22 kW sockets, load-managed. Grant support via the Workplace Charging Scheme.
- Customers and visitors (retail, hospitality, leisure) – dwell time from 30 minutes to a few hours. A mix of 22 kW AC and one or two DC rapid units, with contactless payment.
- Residents (managed car parks, developments) – overnight use, billing per user, RFID or app access.
- Public revenue – you are essentially opening a small fuel station: high-power DC, 24/7 access, roaming, and a proper business case.
Step 2 – Site survey and electrical capacity
A survey establishes three things: where the chargers should go, how power gets to them, and – critically – how much spare capacity your supply has. We look at your maximum demand from half-hourly data or the meter, the incoming supply rating and the state of the distribution boards.
If capacity is tight, there are three routes, in order of cost:
- Dynamic load management – the chargers share whatever headroom exists and throttle when the building is busy. Often this alone lets you install 6–10 AC sockets without touching the supply.
- Battery storage to buffer peaks – increasingly common with rapid chargers on constrained sites.
- A supply upgrade from your DNO (UK Power Networks in London). Budget from a few thousand pounds for a modest uplift to substantial sums for a new substation, and lead times of 3–12 months.
Step 3 – Choose the hardware
AC chargers (7, 11, 22 kW) are the workhorses of commercial charging: low capital cost, easy on the supply, and perfect wherever cars park for an hour or more. Our commercial AC stations are UK-made posts and wall boxes with dual sockets, RFID/app access and OCPP connectivity.
DC rapid chargers (50–150 kW and above) deliver 100+ miles in half an hour and are what a passing motorist expects to find. They cost ten to twenty times more per unit and demand serious power. Our Charge Complex DC stations are designed for retail parks, service areas and hubs.
Whatever you choose, insist on OCPP compliance so you are never locked into one back-office provider, on smart-charging capability (mandatory in the UK for most new installations), and on a manufacturer who will still be around to service the unit in five years.
Step 4 – Design: civils, protection and compliance
A commercial design covers cable routes and trenching, a dedicated distribution board, RCD/RCBO protection per charger, earthing, bollards or wheel stops, bay marking and signage, lighting and accessibility. Every charge point must be notified to the DNO; installations must meet BS 7671 (IET Wiring Regulations) and the IET Code of Practice for EV charging; and any point offered to the public must comply with the Public Charge Point Regulations 2023 – contactless payment on 8 kW+ units, price transparency, 99% reliability reporting for rapids, and open data. A competent installer takes care of all of this; you should receive the certificates at hand-over.
Step 5 – Grants and tax
- Workplace Charging Scheme – up to £500 per socket, up to 40 sockets, 75% of costs, extended to March 2027.
- EV infrastructure grant for landlords and car park operators – towards the groundwork and supply for future chargers.
- Capital allowances – 100% first-year allowance on charge point equipment.
- Local schemes – several London boroughs and business improvement districts co-fund chargers in public-facing car parks. Ask us; we track them.
Step 6 – Installation and commissioning
A typical AC installation of 4–10 sockets takes 2–5 working days on site once materials and any DNO work are in place. DC projects take longer, mostly because of the grid connection. Commissioning includes testing, connecting each unit to the back office, setting tariffs and access rules, and training your facilities team.
Step 7 – Operation
This is where projects succeed or fail. You need to know that chargers are online, that users can pay, and that faults are fixed quickly. Auto E's management platform gives you real-time status, remote restart, usage and revenue reports and driver support, and our repair and maintenance service covers hardware from any manufacturer, not just our own.
Typical costs and timescales in 2026
- 4 × 22 kW dual sockets, office car park, no supply upgrade: £10,000–£20,000, 4–6 weeks from order.
- 10 × 7 kW sockets, residential car park with load management: £15,000–£30,000, 6–8 weeks.
- 2 × 50 kW DC + 4 × 22 kW AC, retail site with a supply uplift: £90,000–£150,000, 4–9 months (DNO-dependent).
These are guide figures; a survey turns them into a fixed quote.
Next step
Auto E has designed, manufactured and installed EV charging stations in the UK since 2017. We handle the whole project – survey, design, grants, DNO application, installation, back office and maintenance – so you deal with one company. Book a free survey on +44 20 3393 4113 or via our contact page, or explore our solutions for business.