Charging your EV
- The Cheapest place to charge your EV is at home.
- You can use a 3 pin plug but this isn't recommended!
- A home charger is the best way and will allow up to 7.5kWh
If you are on the road there are chargers at many locations and range from 7.5KWh to 300kWh
Cost to Charge a 50kWh battery
Home @ 0.08p kWh = £4
50KWh @ 0.35p kWh = £17.5
100KWh @ 0.60p kWh = £30
To work out the cost, simply times the amount of kWh you are adding to your car against the cost per kWh. For example adding 40kWh x .35pp kWh = 40 x .35 = £14
Charging times for 50kW battery
|
Type |
Phase |
Max KW |
Time to change 50KWh battery |
|
3 Pin Plug |
Single |
3kW |
16.6 hrs |
|
7.5kW |
Single |
7.5kW |
6.6 hrs |
|
22kW |
3 Phase |
22kW |
2.27 hrs |
|
50kW |
3 Phase |
50kW |
1 hr |
|
75kW |
3 Phase |
75kW |
40 mins |
|
100kW |
3 Phase |
100kW |
30 mins |
What's the difference between kW and kWh
kW = Power
kW Kilowatt, represented is a measure of power. 'k' stands for 'kilo' which means 1000. Therefore, a kilowatt (kW) is 1000 watts
The bigger the kW the more power.
Think of it like a 1.0 ltr Ford Fiesta against a V8 Mercedes
kWh – Capacity
A kilowatt-hour (kWh) is a unit of energy, specifically a measure of electrical energy consumption. It represents the amount of energy used by a 1,000-watt appliance running for one hour.
Like a fuel tank the bigger kWh the further the range.
Here is an example of 2 different cars with different kW and kWh figures.
Citroen C4 100KW / 50kWh 0-60 = 10 Sec Range 221miles
Polestar 2 205KW / 82kWh 0-60 = 6.1 Sec Range 406 miles