...Installing a fast charger
To install a fast charger a high power connection line is required. Most chargers require a 400 V three-phase connection with a high current capacity (63 A or more). At most locations this means it is required to make a new connection to the local transformer station. These stations are dispersed in the power grid and can be found where high voltage power lines need to be transformed down to usable voltage levels in industrial, commercial and residential use. Typically, these stations in Norway provide 400 V three-phase and 230 V single-phase voltages to customers, though 400 V is more common in new installations. If there is not enough capacity at such a station, an additional investment (in the range of several hundred thousand NOK) in the transformer needs to be made to install a fast charger. Generally, this makes it infeasible to install a fast charger today. Further, some sort of concrete foundation needs to be made, and usually a shelter to protect the charger from snow, rain, and dirt is wanted. If customers are required to pay for charging, a payment solution can also amount to around NOK 50 000. All in all, this usually amounts to a total investment cost of NOK 400 000 to 600 000 (€ 50-75 000), even when no further power grid investments are necessary. With one charger per 200 vehicles, this would mean an investment cost of about NOK 3000 per vehicle...
