10 Questions
What is the formula to calculate the estimated charging time?
Useable Battery Capacity / Charger
What is the tariff for British Gas?
8.95 p/kWh
What is the efficiency of the Mustang Mach-E with a WLTP Range (combined) of 292 miles?
4.1 miles/kWh
What is the annual home charging cost for the Mustang Mach-E with a WLTP Range (combined) of 292 miles, assuming 12kmpa and using Octopus Intelligent?
221.92
What is the useable battery capacity of the Explorer with a WLTP Range (combined) of 374 miles?
77 kWh
What is the formula to calculate the cost of charging an EV?
Tariff x Battery Capacity / 100
What is the number of off-peak hours for the Mustang Mach-E with a WLTP Range (combined) of 292 miles, using Octopus Intelligent?
6
What is the estimated charging time for the Mustang Mach-E with a useable battery capacity of 72 kWh and a charger of 7 kW?
10.3 hours
What is the efficiency classification for an EV with an efficiency of 4.1 miles/kWh?
Good
What is the annual home charging cost for the Explorer with a WLTP Range (combined) of 239 miles, assuming 6kmpa and using Octopus Intelligent?
97.91
Study Notes
Calculating Estimated Charging Time
- Estimated charging time is calculated by dividing the useable battery capacity (kWh) by the charger's power (kW)
- The charge rate slows down as the state of charge exceeds 80%
Calculating Estimated Cost of Charging an EV
- Estimated cost of charging is calculated by multiplying the tariff (p/kWh) by the battery capacity (kWh) and then multiplying by 100
- The cost of charging depends on the provider, tariff, and off-peak hours
Calculating Estimated Efficiency of an EV
- Estimated efficiency is calculated by dividing the WLTP range (combined) by the useable battery capacity (kWh)
- Efficiency scores are categorized as Excellent (5.0+), Good (4.0-4.9), Average (3.0-3.9), and Poor (0-2.9)
Home Charging - Annual Assumed Running Cost
- Annual home charging cost is calculated based on the assumptions of only home charging, 7kW home charger, charging during off-peak hours, and Octopus Energy as the provider
- The cost depends on the tariff, off-peak hours, and number of charging sessions required
Learn how to calculate the estimated charging time and cost for electric vehicles like the Mustang Mach-E and Explorer. Understand the formulas and variables involved in the calculation.
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