0) Fleet Groups (Company Cars)
Enter your company car fleet as groups (e.g., Sales team, Executives, High-mileage drivers). These groups are used to rank electrification priority and to calculate fleet totals.
| Group | Count | Miles/yr | Home/Depot % | Public DC % | Avg trip (mi) | ICE mpg | EV model | EV mi/kWh | ICE purchase (£) | EV purchase (£) |
|---|
Tip: Home/Depot % and Public DC % should usually add up to ~100%. If they don’t, the tool will normalise them per group.
Suitability & priority
How scoring works (MVP)
Scores favour higher annual miles, higher home/depot charging access, and lower public DC dependence. Very long typical trips can reduce suitability.
1) Fleet Mix & Usage
Typical annual mileage per vehicle
Current diesel/petrol price
Vehicle Types & Specifications
2) Charging Strategy & Tariffs
VAT Treatment
Most UK businesses can reclaim VAT on vehicle purchases, fuel, electricity, and maintenance. Uncheck if VAT cannot be reclaimed (e.g., non-VAT registered businesses).
Energy Distribution
Charging Capacity Planner (MVP)
Typical hours available for charging overnight.
How many nights/week vehicles typically charge.
Used to estimate sockets required.
Depot/Home kWh per night
Required average kW
Recommended sockets
Estimated peak kW
This is a simplified estimate (no smart-charging scheduling). Use it as an early indicator of charger count and peak electrical demand.
Home Charging Clarification
Driver Home Charging refers to employees charging company vehicles at their homes and submitting electricity costs as business expenses. This is common for company car drivers who have home charging facilities. The company reimburses drivers for the electricity used, typically at the driver's domestic electricity rate. HMRC has specific rules for this reimbursement - see HMRC guidance.
Electricity Tariffs
Off-peak electricity rate (depot or driver home)
Peak electricity rate (depot or driver home)
Public fast charging rate (no VAT reclaim on public charging)
Charging Infrastructure
AC 7–22kW typical hardware + install avg.
Apply
Workplace Charging Scheme (up to £350/socket, 40 sockets,
75% cap).
Apply
EV Infrastructure Grant (SMEs) – enter per-space support:
Check eligibility & caps on GOV.UK. See sources below.
Apply Plug-in Van Grant – up to £2,500 for small vans, £5,000 for large vans.
Check eligibility & caps on GOV.UK. See sources below.
3) Road charges & zones
How this section is applied
The days/year values below are treated as an average per vehicle and applied fleet-wide (total vehicles × days × rate). For partial exposure, enter an average (e.g., 30% of fleet uses 100 days → enter 30 days). For CAZ, use the built-in Vehicles affected (%) control per zone.
Enter the average days per vehicle per year that vehicles drive inside the ULEZ. This is applied across the whole fleet (total vehicles × days × rate). If only part of your fleet enters, use an average (e.g., 30% of fleet uses 100 days → enter 30 days).
Clean Air Zones (CAZ)
Select which CAZ zones your fleet operates in and configure the exposure. reflect your current exposure.
Total Cost of Ownership (3-Year Analysis)
ICE TCO (3 years)
EV TCO (3 years)
TCO Saving
Environmental Impact
Carbon Saving
ICE Emissions
4) Results & breakdown
VAT Treatment Summary
Current Setting:
VAT reclaimable
Impact:
All costs shown exclude VAT (as VAT can be reclaimed by the
business)
Note: Road charges (Congestion Charge, ULEZ,
CAZ) are shown without VAT as they are not subject to VAT.
ICE Total (excl. charges)
EV Total (ops+capex)
Road Charges Total
Saving (EV vs ICE)
Detailed Breakdown
| Category | ICE | EV | Road Charges |
|---|---|---|---|
| Fuel/Energy | £0.00 | £0.00 | £0.00 |
| Maintenance | £0.00 | £0.00 | £0.00 |
| Infrastructure | - | £0.00 | £0.00 |
| Public Charging | - | £0.00 | - |
Summary Statistics
5) Transition Plan (Year-by-Year)
Create a simple finance-ready roadmap. This uses your Fleet Groups priority and assumes vehicles are converted in priority order up to your annual replacement rate.
Stops converting once this EV% is reached.
If set, limits conversions based on EV uplift cost.