Nissan Leaf 40 kWh home charging cost — Occasional use (20%→80%, twice a week)
Charging a Nissan Leaf 40 kWh (40 kWh battery) on the Occasional use (20%→80%, twice a week) pattern uses 24.0 kWh per session and costs £6.27 at the current Ofgem cap rate of 26.11p/kWh (1 July to 30 September 2026).
Source: Ofgem (OGL v3.0) + SMMT / manufacturer press packs — UK EV battery capacity and WLTP range data 2024–2025. Published 2026-06-20.
Nissan Leaf 40 kWh — Occasional use (20%→80%, twice a week): 24.0 kWh per session × 26.11p/kWh = £6.27/charge. 2 sessions/week = £12.53/week ≈ £54.31/month ≈ £651.71/year. Cost per mile (WLTP): ~6.2p. Source: Ofgem price cap (OGL v3.0), SMMT / manufacturer press packs — UK EV battery capacity and WLTP range data 2024–2025.
- Per charge session
- £6.27
- Per week (2 sessions)
- £12.53
- Per month (avg)
- £54.31
- Per year
- £651.71
Nissan Leaf 40 kWh specification
- Battery capacity
- 40 kWh
- WLTP range
- 168 miles
- Full charge cost
- £10.44
- Cost per mile (WLTP)
- ~6.2p
- Charge pattern
- 60% of battery
- kWh per session
- 24.0 kWh
Nissan UK — Leaf product page 2024 (40 kWh battery, 168-mile WLTP)
How the cost is worked out
- Battery capacity: Nissan Leaf 40 kWh has a 40 kWh usable battery (SMMT/manufacturer data).
- Charge amount: 60% of battery = 40 × 0.6 = 24.0 kWh per session.
- Cost per session: 24.0 kWh × 26.11p/kWh = £6.27.
- Weekly: £6.27 × 2 sessions = £12.53.
- Annual: £12.53/week × 52 weeks = £651.71.
Note: assumes 100% charging efficiency. Real chargers typically have ~10% loss, so actual electricity drawn from the grid is slightly higher. Rapid public charging costs are set by commercial operators and are not subject to Ofgem cap.
Frequently asked questions
How much electricity does a Nissan Leaf 40 kWh use to charge?
The Nissan Leaf 40 kWh has a 40 kWh usable battery. The Occasional use (20%→80%, twice a week) pattern charges 60% of the battery, using 24.0 kWh per session. A full 0%→100% charge uses 40 kWh and costs £10.44 at the current Ofgem rate.
What is the cost per mile for a Nissan Leaf 40 kWh when charged at home?
Based on the WLTP range of 168 miles from a full 40 kWh battery, the electricity cost per mile at home is approximately 6.2p/mile at the Ofgem cap rate of 26.11p/kWh. Real-world range will vary by driving style, weather, and speed.
What does it cost to run a Nissan Leaf 40 kWh per year on electricity?
On the Occasional use (20%→80%, twice a week) pattern (2 sessions/week), the estimated annual electricity cost is £651.71 at 26.11p/kWh (1 July to 30 September 2026). The actual cost depends on your real charging pattern and whether the Ofgem cap changes before the year is out.
Find a home EV charger installer
Getting a 7.4 kW home EV charger installed typically costs £800–£1,200 and can halve your per-mile electricity cost vs slow 3-pin charging. GeraHome connects you with OZEV-approved charger installers in your area.
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Battery capacity (40 kWh) from Nissan UK — Leaf product page 2024 (40 kWh battery, 168-mile WLTP). Unit rate 26.11p/kWh from Ofgem — Energy price cap unit rates and standing charges (1 July to 30 September 2026). OGL v3.0.