UK Fleet Charging Costs: Budget for 2026 Grants and Ofgem Rules
Depot charging may be a cost-effective route for UK fleets, and two factors to assess are the Ofgem Access SCR decision on grid connections and the Workplace Charging Scheme grant. Charging costs vary by location, tariff and charging method. Start with a depot feasibility review, then use the figures below to size your spend.
TL;DR:
Fleet News puts public fleet charging at about 54p per kWh in the first half of 2026, while rapid charging reached about 82.6p.
Workplace grants offer up to £500 per socket for up to 40 sockets; the first Depot Charging Scheme window covered 70% of charger and civil costs, capped at £1 million.
Build budgets from fleet size, daily energy use, tariffs, and operating days, then add maintenance and spread net infrastructure costs after grants across the chosen period.
Charger utilization, electricity tariffs, and equipment costs drive lifetime costs; test low, central, and high utilization because idle chargers retain their purchase cost.
Contact the DNO early because grid upgrades can delay installation, and request separate prices for chargers, civil works, wiring, and switchgear to compare quotes.
Table of Contents
What do fleets pay per kWh for depot, home and public charging?
Industry reporting for the first half of 2026 indicates that charging costs vary by charging method. Fleet News, drawing on Rightcharge data, reports differences between home, public and blended fleet charging rates.
Fleet charging costs can change as the mix of home and public charging changes.
Check depot tariffs against the rates available to your fleet before comparing options.
For reimbursement benchmarks, HMRC advisory electric rates provide rates for home and public charging.
A quick worked example can compare a delivery van’s daily energy use with the rates available to your fleet. Estimate the daily cost by multiplying energy use by the relevant price per kWh, then compare the result across charging options and your operating schedule.
What drives fleet charging costs?
Your budget moves on a handful of line items. Knowing which ones helps you challenge quotes and plan the sequence of works.
Grid connection: Since 1 April 2023 the Ofgem “shallow” connection boundary means reinforcement costs for demand customers are no longer charged to the connecting customer and are managed by Distribution Network Operators (DNOs). That removes a major cost risk, although lead times for upgrades still affect your programme.
Chargers: Equipment cost depends on AC or DC, power rating and the number of ports.
Civils: Trenching, cabling, groundworks and protective barriers often make up a large share of upfront spend.
Metering and local distribution: Site wiring, switchgear and submetering add to the installation total.
Energy: Over the life of the project, energy use can be a major part of running costs, while capex shapes the upfront budget.
Pro Tip: Ask for civils and electrical works to be priced separately from the chargers, so you can compare quotes like for like.
Our guides on EV charger installation cost for UK workplaces and fleets and commercial EV charger installation cost break these items down further.
Which UK grants and reliefs cut your installation costs?
Grants can change the case for electrification, so check eligibility before you commit to capex.
Depot Charging Scheme: a multi-year programme running from April 2026 to 2030. The first window, open from 25 March to 30 June 2026, funded 70% of charge point and civil costs up to £1 million. Further windows are expected, but rates may change.
Business rates relief: 100% relief for eligible dedicated EV charging points until 2036, as noted in the Workplace Charging Scheme entry.
How grants shape procurement:
Confirm eligibility and funding rules before signing contracts, and check whether the scheme covers work already committed.
Shared sites need clear rules on cost recovery, so check how grant conditions apply before you charge third parties.
Align your purchase order timing with open application windows.
Our post on workplace EV charging grants shows how to prepare an application.
How do you estimate total fleet charging cost for a budget?
Build the estimate from a few inputs, then test it against different assumptions.
Fleet size and energy use per vehicle
Electricity price per kWh
Charger count and expected utilisation
Capex and civils, less any grant
Operations and maintenance
The period used to spread infrastructure costs
The method: multiply the number of vehicles by daily energy use, price per kWh and operating days to estimate annual energy cost. Then divide net infrastructure cost (capex plus civils, minus grants) by the period used to spread those costs and add annual O&M. Use your fleet’s actual operating assumptions and applicable tariffs to compare scenarios.
Technoeconomic analyses published on SSRN find that charger utilisation, electricity tariffs and equipment costs dominate the levelised cost of charging. In practice, a charger that sits idle costs the same to buy as one that works all night.
UC Davis research points the same way: higher utilisation lowers per-vehicle infrastructure cost. Run your model at low, central and high utilisation to see how far the answer moves.
How can you reduce your fleet charging spend?
Rank the levers by impact, starting with the ones that cost least to try.
Smart charging and load management: spreading demand across the night avoids peak costs and can reduce how many chargers or how much grid capacity you need. Our article on smart charging for fleets shows how this avoids costly grid upgrades.
Maximise utilisation: dual-port chargers and staggered shift charging mean fewer units serve more vehicles, which lowers per-vehicle capex. Practitioner analysis names utilisation as the primary cost-reduction lever.
Battery storage: for high-utilisation depots, storage can cut peak demand and smooth energy costs, and the SSRN analysis finds it reduces the levelised cost of charging.
Tariffs: negotiate a fleet tariff or look at fixed-rate fleet bolt-ons where your supplier offers them.
Pro Tip: Move as much charging as possible to the depot overnight, and keep public rapid charging for emergencies and long routes.
What should your procurement and planning checklist include?
Follow these steps in order to avoid surprises on cost and schedule. Our fleet depot charging guide covers the operational side.
Start the feasibility study and contact your DNO early, so grid lead times do not delay the programme.
Align procurement with open grant windows and confirm eligibility before committing capex.
Model several scenarios and add contingency for civils and grid timelines.
Choose an ownership model (outright purchase, funded or charging as a service) and include software, maintenance and future renewables or storage.
Prepare grant paperwork in advance, with quotes and site plans ready to submit.
Our view: what saves UK fleets the most
We recommend depot-first planning, early DNO engagement and capturing every grant you qualify for. Where the site economics allow, pair charging with solar or storage to blunt peak costs. The biggest savings come from decisions made before a charger is ordered.
— Swift Charging
Feasibility reviews, grant support and long-term management from Swift Charging
Swift Charging is here to take the guesswork out of fleet budgets. We run feasibility reviews and depot cost estimates, support Workplace Charging Scheme and Depot Charging Scheme applications, install the chargers, set up load management and keep everything maintained. Explore our fleet EV charging solutions or request a commercial EV feasibility review for a tailored cost estimate.
FAQ
How much do public chargers cost in the UK?
Public charging costs far more than charging at your depot. Fleet News reports an average of around 54p per kWh for fleets in the first half of 2026, with public rapid charging up to about 82.6p per kWh.
What is vehicle to home charging?
It lets an electric vehicle send stored energy back to a building, rather than only drawing power from it. For fleets, the practical focus is usually managed depot charging, which controls when and how much power each vehicle draws.
What is the 80/20 rule for charging electric cars?
Fleet operators often apply this approach to routine charging, then charge fully only when a route needs the extra range.
Is it free to charge an EV at Tesco?
Free charging depends on the site and operator, and arrangements change. Check the operator’s app or on-site signage before you plan a route around it. For fleet budgets, assume paid public rates rather than free charging.
Sources
Workplace Charging Scheme - GOV-UK Find a grant
Decision on DCP406 - Access SCR Changes to CCCM | Ofgem
Fleet EV charging costs revealed in new report | Charging & infrastructure
Estimating the Levelized Cost of Direct Current Fast Charging of Medium- and Heavy-duty Battery Electric Fleets by Sajag Poudel, Qiang Dai, Krishna Reddi, Amgad Elgowainy, Thomas Stephens, Yan Zhou :: SSRN
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