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Commercial EV charger installation.
Workplace and depot EV charging from employed engineers: survey, supply and load management, ducts, networked chargers and back office, then looking after them. From a dual post for a planning condition to chargers someone else fitted.
Commercial EV charging we have installed and looked after
We install new workplace chargers, and fix and run chargers other people fitted. Real jobs from our records:
| Client | Where and when | What we did |
|---|---|---|
| Carey London | Depot near Baldock, Sep to Oct 2026 | One dual post with two multiphase myenergi zappi chargers, on two new 32A circuits. Load managed so the site never draws more than 80A. Hard-wired to the network. Fitted to meet a planning condition. |
| A care group | Nursing home, October 2026 | Reconnected two charge points to their back office after staff changes. We now manage it and issue RFID cards. |
| A care group | Nursing home, March 2026 | Completed and commissioned Sevadis EV chargers. |
| A leisure company | Office car park, Hemel Hempstead, October 2025 | The charger inside a Sevadis pedestal had failed. We fitted a new Autel unit, proved it on a live charge and handed over new RFID cards, in one afternoon. |
| Wates | Gunnels Wood office, Stevenage, March 2025 | Safely isolated and removed the old charger. Fitted a new tethered charger with a 5m cable. |
The Baldock depot. Carey London needed two charge points at its depot near Baldock to satisfy a planning condition. Ducts were already laid, so we put one dual post on the second duct run, fed from the office’s single-phase board on two new 32A Type B RCBOs. The chargers are multiphase, so the post is ready if the site moves to three-phase later. CT clamps in the cabinet let the chargers share the supply, so total demand never goes over 80A. We hard-wired both chargers to the network switch, because Wi-Fi is less reliable through that building. Surveyed on 28 September 2026 and installed on 30 September. See the Baldock project and the Hemel Hempstead charger repair.
What a business needs
- A survey. We look at the intake, the boards, the car park and the cable route.
- Supply capacity and load management. Several chargers can overload a supply. Load management shares the power between them and the building. If the supply is too small, we say so and quote for a supply or sub-main upgrade.
- Ducts and groundworks. Ducts with draw strings make adding chargers later much easier. If they are already in, we use them.
- Tethered or untethered. A tethered charger has its own cable. An untethered one has a socket, and drivers bring their own cable. See Type 1 or Type 2.
- Networked chargers and a back office. A networked charger can be monitored, updated and controlled with RFID cards. Where Wi-Fi is weak, we hard-wire them to your network. See data cabling.
- Signs and labels. We label the chargers, circuits and junction boxes, and fit EV bay signs.
Choosing a charger? Read which EV charger and the myenergi zappi.
Planning conditions and Building Regulations Part S
Planning. National planning policy says development should “be designed to enable charging of plug-in and other ultra-low emission vehicles in safe, accessible and convenient locations” (NPPF, paragraph 117(e)). Local parking standards should take into account “the need to ensure an adequate provision of spaces for charging plug-in and other ultra-low emission vehicles” (paragraph 112(e)). At the Baldock depot, a planning condition required the charge points. If your permission has one, read it before you get quotes, as it sets out what you must fit.
Building Regulations. In England, Part S has applied since 15 June 2022. For non-residential buildings it asks for:
| Part S requirement | Applies to | What it asks for |
|---|---|---|
| S4 | New non-residential buildings with more than 10 parking spaces | One space with access to a charge point, and cable routes in at least one fifth of the remaining spaces |
| S5 | Non-residential buildings having a major renovation that will have more than 10 parking spaces | The same. If the charge point and cable routes would cost more than 7% of the renovation, cable routes in one in five spaces are enough. If cable routes alone would cost more than 7%, neither is required |
| Approved Document S, para 6.2 | Charge points fitted under Part S | At least 7kW, Mode 3, on a dedicated circuit, with a charging status indicator and a universal (untethered) socket. Tethered only in exceptional circumstances |
A cable route is “a safe, unobstructed route from the power supply to the envisaged electric vehicle charge point location”. Approved Document S suggests ducts with draw strings, trunking, conduit, or trays and ladders. A charge point fitted to meet Part S must run on a dedicated circuit and be compatible with all vehicles that may need it.
Grants for businesses: the Workplace Charging Scheme
The government’s Workplace Charging Scheme is still open. It has been extended for a final year, to 31 March 2027.
| Workplace Charging Scheme | As at 27 October 2026 |
|---|---|
| Grant | Up to £500 per socket (installations completed from 1 April 2026; £350 before) |
| Cap | Up to 75% of the cost of buying and installing, including VAT |
| Limit | 40 sockets across all your sites |
| Who can apply | Eligible businesses, charities, public sector organisations and small accommodation businesses |
| Closes | 31 March 2027 (extended for a final year) |
| Voucher | Valid for 180 days from issue; claimed by an OZEV-authorised installer |
| Chargers | New, and on the approved commercial chargepoint model list. Chargers you supply yourself are not eligible |
You apply first and get a voucher. Your installer then claims the grant on your behalf, and only an OZEV-authorised installer can do that. If the grant matters to your budget, check the installer is authorised and the charger is on the approved list before you order.
Maintenance and back-office management
Chargers stop working for dull reasons. A care group’s two charge points dropped off their back-office system after staff changes. We reconnected both, and now run the back office and issue RFID cards to the people allowed to charge.
When hardware fails, we replace it, as in Hemel Hempstead, where Sevadis confirmed remotely that the new unit was working. We also update firmware, check comms and test the charger circuits as part of your fixed wire testing or a maintenance contract.
Why SEGplc
Our engineers are employed by SEGplc, not subcontracted. We are an NICEIC Approved Contractor and ECA member, and hold CHAS, SafeContractor and Constructionline Gold, so a facilities team or main contractor can approve us quickly. We work across Hertfordshire, Bedfordshire, Buckinghamshire and London, from our head office in St Albans. See all our commercial electrical work and EV charger installation.
Questions about commercial EV charger installation
Our planning permission says we must fit EV charge points. Can you do that?
Yes. That is exactly why Carey London asked us to fit a dual charging post at its depot near Baldock. Send us the condition and your site plan and we will survey against it.
How many charge points does a new commercial building need?
In England, under Part S of the Building Regulations, a new non-residential building with more than 10 parking spaces needs one charge point, plus cable routes for at least one in five of the remaining spaces. A planning condition can ask for more.
Is there a grant for workplace EV charging?
Yes, for now. The Workplace Charging Scheme pays up to £500 per socket for installations completed from 1 April 2026, capped at 75% of the cost, for up to 40 sockets per applicant. It has been extended for a final year until 31 March 2027. The grant is claimed by an OZEV-authorised installer, so check the installer is authorised before you count on it.
Will our electricity supply cope with several chargers?
Often, with load management. At Baldock, CT clamps watch the site’s demand and the two chargers share what is left, so the total never goes over 80A. We check your supply at survey and tell you if it needs an upgrade.
Should we choose tethered or untethered chargers?
For a new building under Part S, the guidance asks for a universal socket (untethered), so any car can plug in with its own cable. On an existing site it is your choice. At Wates’ Stevenage office we fitted a tethered charger with a 5m cable.
Can you look after chargers another installer fitted?
Yes. We have replaced a failed charger in a Sevadis pedestal and reconnected a care group’s chargers to their back office.
Sources
- Find a grant (GOV.UK), Workplace Charging Scheme
- GOV.UK, Workplace Charging Scheme: guidance for installers (updated 1 April 2026)
- legislation.gov.uk, The Building Regulations etc. (Amendment) (England) Regulations 2021 (SI 2021/1392)
- legislation.gov.uk, The Building Regulations 2010, Part 9B (regulations 44D to 44K)
- GOV.UK, Infrastructure for charging electric vehicles: Approved Document S (2021 edition, page last updated 17 April 2023)
- GOV.UK, Approved Document S (PDF): paragraphs 4.3, 6.2 and 6.9
- GOV.UK, National Planning Policy Framework, chapter 9: Promoting sustainable transport
Written by SEGplc, NICEIC Approved Contractor, SEG House, Chiswell Green, St Albans. Job details from our job records and engineers’ reports. Grant and Building Regulations details checked 27 October 2026. Last updated 27 October 2026. Grant rules change, so check the sources before you rely on them.
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