Workplace EV charging has moved from “nice to have” to “expected benefit” over the past five years. For employers in the UK, installing EV chargers at the workplace is a practical staff retention tool, a visible sustainability signal, and in many cases a revenue-neutral investment once grants and tax reliefs are applied.
This guide explains what UK employers need to know about workplace EV charging.
The Business Case
Workplace EV charging delivers value in several ways.
Staff benefit. For EV drivers, workplace charging removes the need for fast public charging and supports those without off-street parking at home.
Recruitment and retention. EV charging is increasingly expected by candidates, particularly in professional and tech roles.
Sustainability credentials. Chargers are a visible signal of environmental commitment, relevant for reporting and procurement criteria.
Preparation for fleet electrification. Chargers installed for staff are a starting point for later fleet conversion.
Revenue (optional). Chargers can be paid or subsidised depending on company policy.
Workplace Charging Scheme (WCS)
The Workplace Charging Scheme provides a grant of up to £350 per socket, up to 40 sockets per applicant. Eligible applicants include:
Businesses of any size.
Charities.
Public sector organisations.
The scheme is administered by OZEV. Applications must be submitted through an approved installer. Grant terms update periodically, so confirm the current rules before committing.
Tax Treatment
Workplace charging has specific tax implications for employers and employees in the UK.
For employers:
The cost of installing and maintaining workplace chargers is generally deductible as business expenditure.
Capital allowances may apply to the charger hardware.
Electricity used at chargers is a business expense when chargers are on business premises.
For employees:
Charging a personal EV at a workplace charger is not treated as a taxable benefit under HMRC rules, provided the chargers are on the employer’s premises and available to staff generally.
Home-to-work mileage is not a taxable business journey, but workplace-to-client mileage is.
Electric company cars carry much lower Benefit in Kind (BiK) rates than petrol/diesel equivalents, making them a valuable part of salary packaging.
Confirm current tax treatment with your accountant, as HMRC rules evolve.
Charger Specification
The right specification depends on staff numbers, typical dwell times, and expected EV adoption rate.
For 50-seat offices with moderate EV adoption (around 20 per cent): 4-8 x 7kW chargers, typically untethered.
For 200-seat offices with high adoption (40 per cent+): 20-40 x 7kW chargers, or a mix of 7kW and 22kW.
For sites with visitor parking: add 1-2 x 22kW chargers for quick top-ups.
For large campuses: load management to balance demand across multiple chargers.
Over-specifying leads to under-used chargers. Under-specifying leads to queuing and frustration. Most installations aim for one charger per three to four EVs expected at peak.
Load Management
Large workplace installations trigger grid connection issues if each charger is drawing full power simultaneously.
Dynamic load management spreads the available electrical capacity across active chargers, reducing the peak demand. This can halve the required supply size.
For example, ten 7kW chargers drawing full power would need 70kW of capacity. With load management, the same ten chargers can share 35-40kW of capacity without significant impact on user experience (most users do not need full 7kW for their full stay).
Load management is a standard feature on most modern workplace charger platforms.
Payment and Access Policy
Employers choose between:
Free-to-use for staff. Simplest to administer. Costs the business the electricity consumed.
Paid at cost. Chargers bill at the wholesale electricity rate, recovering the cost from users.
Paid at a subsidised rate. Chargers bill below cost as a staff benefit.
Tiered access. Free for staff, paid for visitors.
Restricted access. Chargers allocated to specific users (for example, company car drivers).
The right policy depends on the business’s financial position, headcount, and sustainability strategy. Free-to-use is generous but can become expensive as EV adoption grows. Paid-at-cost is revenue-neutral and scales cleanly.
Back-Office Platforms
Commercial chargers are operated through Charge Point Operator (CPO) software that provides:
User management and authentication.
Session logging.
Payment processing.
Reporting.
Fault monitoring.
Typical CPO subscription cost: £10 to £30 per charger per month.
Multiple CPO platforms serve the UK workplace market. Choose based on user experience, reporting flexibility, and integration with your existing systems (HR, facilities management).
Typical Installation Costs
For a mid-size workplace installation of 8-10 x 7kW chargers:
Equipment: £8,000 to £15,000.
Electrical and civils installation: £10,000 to £25,000.
Software setup: £2,000 to £5,000.
Less: WCS grant (40 sockets x £350 = up to £14,000 for larger installations, or up to grant cap for smaller).
Net cost: typically £10,000 to £30,000 for 8-10 chargers.
Usage Policy
A short, clear usage policy avoids most disputes. Key points:
Who can use the chargers (staff, visitors, both).
Pricing (if any).
Time limits (for example, four-hour maximum to prevent charger hogging).
What to do if all chargers are occupied.
Penalty for occupying a charger without actively charging.
Emergency contact if a charger is faulty.
Some employers use a simple rota-based booking system for high-demand sites.
Running the Installation
Day-to-day operation is usually straightforward if the platform is well-chosen. Key activities:
Monthly review of usage and cost.
Quarterly firmware updates and maintenance.
Annual review of capacity vs demand.
Quarterly user feedback collection.
Faults are usually resolved remotely through the CPO platform within 24-48 hours. Major failures require an engineer visit.
When to Upgrade
A workplace installation sized for today’s EV adoption will be undersized in three to five years. Plan for growth:
Design the electrical supply for 50 per cent more chargers than you initially install.
Install cable ducting to future charger positions, even if no charger is fitted.
Specify CPO software that can scale to more chargers without a migration.
Upgrading reactively (adding chargers when existing ones are always full) is slower and more expensive than upgrading proactively.
The Bottom Line
Workplace EV charging is now a standard employee benefit. The installation cost is meaningful but supported by the WCS grant and aligned with wider sustainability and recruitment objectives. Plan the installation properly, specify for growth, and set a clear usage policy. The chargers that serve staff well for ten years are the ones that were designed as an asset, not a tick-box exercise.