AC Chargers are the basic chargers, sometimes referred to as 'FAST'. These typically come in 7kW and 22kW versions.

7kW are typically found in homes.

7kW and 22kW are typically installed car parks by councils.

7kW chargers require Single Phase electricity supply.

22kW require Three Phase electricity supply.  

You can have as many AC chargers as you have supply available

DC Chargers can deliver faster charging to an EV because the battery in the car, van or truck stores the energy in a DC Battery. Charging in DC saves having to convert the electricty in the electric grid from AC to DC.

DC chargers range from Fast to Ultra Rapid speeds.

You can have as many DC chargers as you have supply available, 3 Phase energy is required.

Some providers supply battery backed up DC chargers these can supply DC charging speeds from 3-400kW.

The advantage is they can manage DC charging from constrained supplies even from Single Phase supplies, Off Grid, On Site Renewables and Guarantee Charging speeds.

You can have as many chargers as you have storage and supply for.