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Corporate Car Fleet Charging Cost — UK

Monthly charging spend and per-km energy cost for a corporate car fleet on UK tariffs.

Office fleets charge 9-to-5 — exactly when solar is producing and before evening peak tariffs — making workplace charging the cheapest fleet segment to run. Defaults reflect UK fleets exploit cheap overnight windows (Economy-7 style and agile tariffs) against 38p peak rates. Tune the charging-window shares to your operation; the per-km result is the diesel-comparison number.

£1,179
Monthly charging cost
£79/mo
Per vehicle
£0.04
Energy cost per km
Blended rate£0.17/kWh
Fleet energy7,020 kWh/month
Shifting 10% more off-peak saves£98/mo

Blended rate = Σ(share × window rate). The savings lever is the off-peak share — every 10 points shifted from normal to off-peak hours cuts the bill by the spread between those windows. Demand charges are separate; see the demand-charge tool.

Sources: ToU window rates — UK (commercial) (editable defaults)

Indicative estimates only, not financial or investment advice. Tariffs, subsidies and net-metering rules change — verify with your DISCOM, utility or installer before committing.

Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.

Use the free Corporate Car Fleet Charging Cost — UK online — Monthly charging spend and per-km energy cost for a corporate car fleet on UK tariffs. Runs instantly in your browser: no signup, no upload, mobile-friendly.

About Corporate Car Fleet Charging Cost — UK

Office fleets charge 9-to-5 — exactly when solar is producing and before evening peak tariffs — making workplace charging the cheapest fleet segment to run. Defaults reflect UK fleets exploit cheap overnight windows (Economy-7 style and agile tariffs) against 38p peak rates. Tune the charging-window shares to your operation; the per-km result is the diesel-comparison number.

How to use Corporate Car Fleet Charging Cost — UK

  1. 1Enter fleet size and per-vehicle daily energy (defaults fit the segment).
  2. 2Split your charging across the tariff windows honestly.
  3. 3Read monthly fleet cost, per-vehicle cost and energy cost per km.

Why use Corporate Car Fleet Charging Cost — UK?

  • ✓Blends peak/normal/off-peak shares into one effective rate — the way ToU bills actually work
  • ✓Fleet-typical energy and duty defaults, editable to your operation
  • ✓Per-vehicle and per-km outputs ready for the diesel comparison
  • ✓Shows what shifting 10% more charging off-peak is worth

Frequently asked questions

How much does it cost to charge an electric fleet?+

Fleet energy (vehicles × kWh/day × days) priced at your blended tariff. The blend is the lever: the same fleet costs 30–50% less charged off-peak than at evening-peak rates. This calculator computes the blend from your window shares so the bill stops being a surprise.

What is energy cost per km for EVs versus diesel?+

EV: Wh/km × tariff ÷ 1000 — typically ₹0.8–1.5/km for cars and LCVs on off-peak power. Diesel equivalents run ₹4–8/km. The 3–6× gap is the electrification business case; this tool gives your fleet's exact figure for the board deck.

Should fleet charging avoid peak hours entirely?+

Almost: peak-window rates run 30–80% above off-peak, so every kWh moved out of peak is pure savings with zero hardware. Keep a small peak allowance for operational top-ups, and let the scheduler tool check whether your full fleet physically fits in the cheap window.

Do demand charges appear in the Corporate Car Fleet Charging Cost — UK?+

No — they're a separate billing line based on your peak kVA, covered by the dedicated demand-charge tools. Energy (this tool) plus demand (that one) gives the full bill picture; for DC-fast-charging depots the demand line can be the bigger of the two.

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