The knowledge of Electric Vehicle and their charging is so limited that its quite challenging to discuss the requirements in the industry.
There are three places it can be installed and hence there are three types of projects.
1. Residential
2. Commercial & Industrial
3. Station or utility scale.
These range based on the charging capabilities of the cars and the chargers themselves.
From 1kW single phase to 11kW three-phase electrical connections in AC chargers.
From 24kW to 350kW DC Fast charging (handheld) for eCars.
From 24kW to 600kW DC Fast Charging (handheld & automated) for eBuses Saving Changes...
Not sure I'd agree that the knowledge is limited. Tesla started setting up their global charging infrastructure almost a decade ago and other EV manufacturers and third-party charging providers have been doing the same.
In general, some of the challenges I'd see are:
1. Real estate availability and willingness of local municipalities and nearby businesses/residential areas.
2. Reliability of electricity supply to the locations
3. Balancing variable cost of electricity against the cost to the consumer/company to ensure the charging company makes money while still offering a viable service
4. Too many competing standards for EV charging adapters means it will be hard to attract the full market
5. Resistance or damage from those who feel threatened by the transition from ICE vehicles to EV
I would say that there are a lot more than 3 types of projects broken out by location alone.
This is a classic systems engineering and architecture type problem. When I look at the system architecture of charging, just off the top of my head I would consider a) generation of power b) transmission to point of consumption c) transfer from utility to vehicle and d) vehicle operations. Within those alone, there are a myriad of project types.
To give an example of projects well outside the location breakdown, take Formula E which is a technology test bed and demonstration with entertainment value as a critical element. Projects related to race vehicle development are frequently used to develop production ready technology. This can include things like battery weight and size reduction (the vehicle side), storage or generation of electricity (the utility side), and rapid transfer from utility to vehicle. Saving Changes...
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