Planning EV Fleet Charging Infrastructure for UK Businesses

EV fleet charging infrastructure planning is the critical first step for any UK business converting a vehicle fleet to electric. This guide walks through every stage — from grid capacity assessment to DNO notifications, phased rollout strategy, WCS grant applications and finding an OZEV-approved fleet EV charger installer.

Converting a fleet to electric requires careful planning of charging infrastructure. This guide covers the key steps for UK fleet operators.

Step 1: Assess your grid connection

Contact your Distribution Network Operator (DNO) to understand your current capacity. Your OZEV-approved installer handles the formal DNO notification.

Step 2: Choose a phased approach

Start with 20–30% of vehicle count in chargers and scale up. The WCS covers up to 40 sockets at £500 each.

Step 1: Assess Your Grid Connection for Fleet EV Charging

Contact your Distribution Network Operator (DNO) to understand your current grid capacity. For a 20-vehicle fleet with 7kW chargers running simultaneously, you need at least 140kW of available capacity — which most commercial sites can accommodate with smart load balancing. Your OZEV-approved installer will carry out a free power assessment as part of the site survey.

Step 2: DNO Notification for Fleet EV Charger Installation

Any commercial EV charger installation above 3.68kW must be notified to your DNO. For fleet depot installations — typically involving multiple 7kW or 22kW chargers — your OZEV-approved installer submits the formal DNO notification as part of the installation process. For larger installations requiring grid capacity upgrades, a formal grid connection assessment may be needed, which can take 4–12 weeks. All installers in our directory are experienced in managing DNO notifications.

Step 3: Choosing the Right Charger for Your Fleet Depot

7kW AC chargers are ideal for overnight fleet charging. 22kW AC chargers are better for shift-based operations with daytime downtime. Rapid DC chargers (50kW–150kW) suit high-turnover logistics depots. Smart chargers with load balancing firmware are essential for multi-unit fleet installations — ensuring available power is shared efficiently across all vehicles.

Step 4: Phased Rollout — How Many Chargers to Start With

Most fleet operators start with chargers for 20–30% of the fleet and scale up as EV adoption increases. A phased approach reduces upfront capital expenditure and allows your infrastructure to grow with the fleet. The WCS grant applies to each installation phase independently — meaning you can claim up to £500/socket per phase, up to 40 sockets per site.

Step 5: WCS Grants for Fleet EV Charger Installation

Fleet operators can claim the Workplace Charging Scheme grant for up to 40 sockets per site — with each grant worth up to £500 per socket. For a fleet depot installing 20 chargers, this represents up to £10,000 in grant funding deducted directly from your installation invoice. Multiple sites can apply independently. Your OZEV-approved fleet EV charger installer manages the entire WCS application on your behalf.

How to Find an OZEV-Approved Fleet EV Charger Installer

All 1,136 companies in our directory are OZEV-approved and eligible to manage WCS applications for fleet installations. Use our directory to find fleet charging specialists near you — filter by location and look for installers with commercial or fleet experience. Request free site surveys from at least three installers before committing.

See also: Browse all OZEV-approved EV charger installation companies · Find an installer near you by region

Find an OZEV-approved installer near you

Browse 1,136 verified commercial EV charger installation companies across the UK.