Commercial EV Charger Installation Costs UK — The Real 2026 Numbers

Last reviewed 2026-05-21 · independent guidance

Why this page exists

Most "commercial EV charger cost" pages on the open web are lead-generation copy with prices that haven't been updated since 2022. This one isn't. Every figure below is sourced to a public 2026 reference — OZEV, GOV.UK, trade press, manufacturer rate cards or installer-published guide prices. If a number looks low, it's because we've stripped marketing optimism out. If it looks high, it's because the worst-case (deep civils, DNO reinforcement, ultra-rapid hardware) is the case that quietly kills projects.

We've written it for the person who has to sign the PO: fleet manager, FD, facilities lead. The aim is that you can take this page into a quote meeting and ask better questions than the salesperson is expecting.

Itemised costs, by charger tier (UK, 2026)

Three tiers cover almost every commercial project. Within each tier, what moves you to the high end of the range is usually one of three things: distance from the existing supply, whether you need an OCPP back-office, and whether the DNO has to reinforce upstream of your meter.

Fast AC, 7–22 kW

22 kW only delivers 22 kW if your supply is three-phase and the vehicle accepts it. Most fleet cars (e.g. ID.3, Model 3 SR) accept 11 kW AC. Spec 22 kW only where the duty cycle genuinely needs it — otherwise 7 kW with load management is cheaper and grant-efficient.

Rapid DC, 50–100 kW

Ultra-rapid DC, 150 kW+

Site-level costs that sit on top

• Trenching: roughly £30/m in soft ground, £60–£80/m through paving or tarmac with reinstatement (Checkatrade, 2026). On a 200-bay car park, run-length is the single biggest civils variable.
• DNO grid connection / upgrade: from a few hundred pounds for a notification on a domestic-scale upgrade to £50,000+ for an LV reinforcement, and well into seven figures (£3–5m has been cited) for a full HV connection at a logistics depot. Under Ofgem's Access SCR rules (April 2023) the DNO absorbs deep reinforcement costs — but the customer still pays for the connection works, the assets up to the meter, and any non-contestable supply works.
• Charge-point management software (CPMS / back-office): £10–£50 per charger per month, depending on whether you need OCPI roaming, RFID/group billing, dynamic load balancing, and fleet telematics integration.
• Maintenance & warranty: budget 8–12% of hardware cost per year after the warranty period; rapid/ultra-rapid units carry the bigger long-tail bill (contactor wear, liquid-cooling pumps).

Three worked examples (real UK numbers, 2026)

(a) 12-bay workplace car park — mid-sized employer, suburban

Twelve 7 kW AC sockets across two banks of six, shared cable trench, three-phase supply already at the meter room, modest groundworks, OCPP-managed.

Payback is a function of utilisation and tariff strategy: at 4,500 kWh/socket/yr and a 10p/kWh margin vs. cost recovery, the gross margin pool is about £5,400/yr. Most workplaces don't run this as a profit centre — the real ROI is staff retention and salary-sacrifice scheme support.

(b) Fleet depot — 20 vans, overnight charging

20 × 11 kW AC bays, all charging in a 10-hour overnight window. The supply needs to be sized for diversified load (20 × 11 kW = 220 kW peak, but dynamic load balancing brings it down). Assume a 100 kVA LV upgrade is needed.

This is the case where the 2026 Depot Charging Scheme transforms the maths. Before it existed, fleet operators were quoted £80k+ and walked. With 70% of chargepoints and civils funded, the same project lands inside a normal capex envelope.

(c) Retail park — 4 rapid DC bays, customer-facing

4 × 75 kW dual-gun DC rapids, contactless payment, MID-compliant metering, public-facing OCPI back-office. Site has spare 11 kV capacity but needs a new 500 kVA transformer pad.

Public retail is funded commercially. Typical revenue at 79p/kWh public price, 40% utilisation across the day at 30 kW average session, gives £62k–£80k gross/year per bay before electricity cost. Payback is usually modelled at 3–5 years; the variables that move it are tariff differential and uptime.

The grant maths, correctly

There are two live grants that matter for commercial work in 2026, and a third that recently closed. Get the names right or your finance team will reject the business case.

Workplace Charging Scheme (WCS)

• Up to £500/socket since 1 April 2026 (rate applies to installations completed on or after that date; the previous £350/socket rate applied to completions up to 31 March 2026).
• Capped at 75% of total purchase + installation cost.
• Maximum 40 sockets per applicant, across all sites.
• Scheme funded to 31 March 2027 — no confirmed successor.
• Claimed through an OZEV-authorised installer, who deducts it from your invoice. It never touches your bank account.

Depot Charging Scheme (new, 2026)

• Funds 70% of chargepoint and civil costs at fleet depots — including trenching, cabling and electrical upgrades.
• Capped at £1 million per organisation across all sites.
• First application window: 25 March – 30 June 2026. Works to be completed by 31 March 2027.
• Aimed at fleets adopting zero-emission HGVs, vans and coaches. Does not fund the vehicles themselves, nor the DNO's own reinforcement costs.

What closed on 31 March 2026

The Staff & Fleets Infrastructure Grant, the Commercial Landlord Chargepoint Grant, and the Residential Landlord Infrastructure Grant all closed to new applications on 31 March 2026. The claim deadline for existing vouchers was 26 May 2026. If a quote you're reading mentions "EV Infrastructure Grant for Staff and Fleets" as if it's still open — it isn't.

The DNO supply problem (the one nobody quotes upfront)

The Distribution Network Operator for your region (UKPN, SSEN, Northern Powergrid, SP Energy Networks, Electricity North West, or National Grid Electricity Distribution) is the gatekeeper on every project beyond a handful of 7 kW sockets. Three flavours of cost:

• Contestable works — what a competing Independent Connection Provider (ICP) can do (cable, ducting up to the cut-out). On a real fleet project, you save 15–25% by shopping around.
• Non-contestable works — only the DNO can do these (jointing, final connection, asset adoption). Take it or leave it.
• Reinforcement — upgrading the network upstream. Since Ofgem's Access SCR (April 2023), DNOs socialise this cost across all users. Fleet News documented a case where this dropped a £640k project to ~£130k. Many quotes still don't reflect it.

A 12-socket workplace on existing three-phase often needs only a £400–£1,200 G99. A 20-bay depot at 100 kVA upgrade is typically £15,000–£35,000 in connection works. A 4-bay ultra-rapid retail site with a new transformer is £30,000–£90,000+. Always get the DNO budget estimate before signing for hardware.

What to ask installers (with the right answers)

• "Have you applied for a DNO upgrade of this size before? Show me a recent connection offer letter for a comparable site." Right answer: yes, with two redacted examples.
• "Is the DNO budget estimate in the quote, or excluded?" Right answer: included as a separate line, with a stated assumption.
• "What does dynamic load management cost as an add-on vs. baked in?" Right answer: baked in.
• "Who owns the back-office data, and what's the exit clause if I switch CPMS in year 3?" Right answer: you own the data, hardware is OCPP 1.6J/2.0.1, no lock-in.
• "Are you OZEV-authorised, and are you applying the WCS and (if applicable) Depot Charging Scheme?" Right answer: yes, with the voucher value or 70% line shown explicitly on the quote.
• "What's the response SLA for a faulty rapid unit, and what's the uptime guarantee?" Right answer: 4-hour remote diagnosis, 24–48h on-site for rapids, 98%+ contractual uptime.
• "Who carries the G99 paperwork — you or me?" Right answer: them.

DIY vs. broker vs. OZEV end-to-end installer

The honest summary: for the vast majority of UK businesses installing between 4 and 40 sockets, an OZEV-authorised end-to-end installer is cheaper in total cost of ownership than DIY and faster than a broker.

"What should this cost?" — quick decision tree

• 1–6 fast AC sockets, existing supply OK: £1,500–£3,000/socket installed. WCS covers up to 75%. No DNO drama.
• 8–20 fast AC sockets, may need supply upgrade: £1,800–£4,500/socket. WCS up to £500/socket; G99 application required; £5k–£25k DNO budget on top.
• Fleet depot 10–40 vehicles, overnight AC: £2,500–£5,500/socket installed including load mgmt. Depot Charging Scheme covers 70% of chargepoints + civils.
• 2–6 rapid DC 50–100 kW, off-street commercial: £15k–£35k/unit installed; DNO works often £15k–£50k on top. WCS not applicable for public-access bays.
• Ultra-rapid 150 kW+, retail or trunk-road: £40k–£80k/unit; HV connection £30k–£150k+; only viable with strong utilisation forecast.

Frequently asked questions

What does a commercial EV charger actually cost to install in the UK in 2026?

Installed, per socket: fast AC 7–22 kW around £1,200–£3,000; rapid DC 50–100 kW around £14,000–£35,000; ultra-rapid 150 kW+ around £35,000–£80,000. Site-wide civils add £600–£9,000+ and a DNO grid upgrade can add anywhere from a few hundred pounds to £50,000+ at higher power. Software is £10–£50 per charger per month.

Is the Workplace Charging Scheme really £500 per socket now?

Yes — since 1 April 2026 the OZEV WCS has paid up to £500 per socket (up from £350), capped at 75% of total cost and a maximum of 40 sockets per applicant. The scheme is currently funded only to 31 March 2027.

Is there still a grant for the civils and grid upgrade?

Not as a standalone scheme. The old Staff and Fleets Infrastructure Grant closed to new applications on 31 March 2026. For fleet depots, the new Depot Charging Scheme funds 70% of chargepoints and civil works (trenching, cabling, electrical upgrades) up to £1 million per organisation, with works to be completed by 31 March 2027.

Why do DNO grid upgrades blow up so many EV projects?

Because they are scoped last and quoted by a monopoly. Anything beyond a handful of 7 kW points usually needs a G99 application and often a transformer or LV reinforcement. Under Ofgem's Access SCR rules (April 2023), DNOs absorb the reinforcement cost, but the customer still pays the connection works and faces 6–18 month lead times. A good installer scopes the DNO position before quoting hardware.

Should I go through a broker, an OZEV-authorised installer, or DIY the project?

For anything above 6–8 sockets, an OZEV-authorised end-to-end installer is usually cheapest in total cost of ownership. Brokers add a 5–15% margin but can be worth it for multi-site rollouts where you need one contract. Pure DIY (you contract the electrician, the civils firm and the DNO yourself) only makes sense if you have an in-house property team — otherwise the grant claim, G99 paperwork and warranties fall through the cracks.

What single question separates a good installer from a bad one?

'Have you applied for a DNO upgrade of this size before, and can you show me a recent connection offer letter for a comparable site?' If they hesitate, walk away. Grid is where projects die.

Is the £500/socket WCS rate already in force?

Yes. Since 1 April 2026 every completed WCS installation has been claimed at up to £500/socket (capped at 75% of total cost, max 40 sockets per applicant). The scheme is funded only to 31 March 2027, so the practical pressure now is avoiding the queue that builds in Q1 2027 ahead of the scheme ending.