Commercial EV Charging | Multi-Charger Installations |
Commercial EV Charging
EV Charging for Commercial Sites
Simpson & Partners chargers built for workplaces, fleets, hospitality and pay-per-use car parks — with the metering, access control and load management a domestic charger simply doesn't need.
A domestic charger is built to charge one car, on one driveway, billed to one household electricity account. A commercial site is a different problem: multiple chargers, multiple users who aren't the bill payer, and a supply that has to be shared sensibly rather than maxed out by whoever plugs in first. The Simpson & Partners range we work with was designed with that in mind, and below covers what makes it a fit for commercial deployments specifically.
What Makes These Chargers Suitable for Commercial Sites
MID-Certified Metering
±2% accuracy billing-grade metering built in, so you can actually charge for electricity used rather than a flat session fee — essential anywhere you're not covering the cost yourself.
RFID Access Control
Restrict who can charge — staff, fleet vehicles, or paying customers only — rather than leaving a socket open to anyone who walks up.
Built-In Payment Integration
Tap Electric payment integration with no monthly fee, so pay-per-use billing works out of the box rather than needing a separate back-office system bolted on.
Dynamic Load Balancing
A wired CT clamp lets multiple chargers share one supply without tripping it — the difference between running two chargers and running twenty off the same incoming feed.
Ethernet Connectivity
A wired network connection is more reliable than relying on Wi-Fi across a large car park or depot, keeping remote monitoring and billing online.
Flexible Siting
Freestanding pedestal options with concealed cable entry, so chargers can be positioned away from a building wall — across a car park, depot or bay of spaces.
Holiday Series — Pay-Per-Use & Multi-User Sites
Built for sites where the person charging isn't the one paying the electricity bill — holiday parks, hospitality, workplace car parks and public or semi-public parking. MID-certified metering (±2% accuracy) and RFID access come as standard, and Tap Electric payment integration is built in with no monthly fee, so you can bill for actual usage without a separate back-office system.
- MID-certified metering, ±2% accuracy
- RFID access control
- Built-in Tap Electric payment integration, no monthly fee
- Ethernet connectivity for reliable remote monitoring
- No tethered cable variant — suits shared, multi-user bays
Freestanding Plus — Depots, Fleets & Car Parks
A mini pedestal unit for sites where you need a charger away from a wall — fleet depots, car parks and multi-bay layouts. Concealed cable entry keeps cabling tidy and out of the way, and a Wired Energy Manager is included as standard, meaning load management is built in from the start rather than an aftermarket add-on.
- Freestanding mini pedestal, sited independently of a building
- Concealed cable entry
- Wired Energy Manager included as standard
- Suited to fleet depots and multi-bay car park layouts
Multi-Charger Site Design & Load Management
Running more than a couple of chargers off one supply means thinking about the incoming capacity, not just the number of sockets. Dynamic load balancing via a wired CT clamp lets chargers share the available supply automatically, scaling back individual charge rates when demand is high rather than tripping the main switch. Pair this with one of our 3-phase distribution boards sized for 11–22kW EV circuits, and you've got the electrical backbone for a multi-bay site sorted from the ground up.
Ready-Built PEN Fault & Surge Protection Units
Most 3-phase EV chargers — including the Tesla Wall Connector — have no built-in PEN fault detection, which BS 7671:2018 Amendment 2 requires on a PME (TN-C-S) supply. Rather than speccing an earth rod or building protection up from separate components, we stock two ready-built units for exactly this.
3-Phase PEN Fault Detection + Surge Protection (Tesla Compatible) — from £180
Built for multi-bay sites: one enclosure protects 2 or 3 three-phase chargers, or up to 6 single-phase chargers, sharing a single PEN fault module and Type 2 SPD with a 40A RCBO per circuit.
View this unit →3-Phase PME Unit — 40A RCBO + Surge Protection — from £65
A single-charger version for one 11kW or 22kW three-phase bay — pre-wired, DIN rail mounted, and a compliant alternative to an earth rod.
View this unit →Frequently Asked Questions
What's the difference between these chargers and a domestic EV charger?
Domestic chargers are built for one vehicle and one bill payer. Commercial units add MID-certified metering for accurate billing, RFID access control to restrict who can charge, built-in payment integration, and dynamic load balancing so multiple chargers can share one supply.
Can I charge customers or staff for using the chargers?
Yes — the Holiday Series has Tap Electric payment integration built in with no monthly fee, alongside MID-certified metering so billing is based on actual electricity used.
How many chargers can I run off one supply?
It depends on your incoming supply capacity and the distribution board behind it. Dynamic load balancing via a wired CT clamp lets multiple chargers share the available supply, but for larger sites get in touch and we'll help you size the supply, board and charger count together.
Do you offer freestanding units for car parks and depots?
Yes — the Freestanding Plus is a mini pedestal unit with concealed cable entry, designed to be sited independently of a building wall, with a Wired Energy Manager included as standard.
Does the Tesla Wall Connector need extra protection on a commercial site?
Yes — the Tesla Wall Connector (Gen 3) has no built-in PEN fault detection, which BS 7671 Amendment 2 requires on a PME supply. We stock ready-built PEN fault detection and surge protection units that are compatible with the Wall Connector, covering single or multi-charger setups.
What if my site needs something outside the standard range?
We can offer custom builds and have access to an enormous range of components beyond what's listed on the site — it's not possible to list them all, so get in touch with your site details and we'll see what we can put together.
Planning a multi-charger installation?
Tell us about the site — number of bays, supply capacity and how you want to bill users — and we'll help you spec it.
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