While eating, Xu Yifan was also thinking about the future development of the company.
In this year 2010, it is too difficult to develop new energy electric vehicles.
Nowadays and in the future after 2021, almost all cities in the country have charging piles. They are completely different concepts.
Different from ordinary fuel vehicles, new energy vehicles require more supporting facilities.
But at this time, except for the two charging stations tentatively built by Jiangzhou City and Jiuzhou Automobile, there are very few places across the country that can provide fast charging for electric vehicles.
As for a pure electric car, without the support of charging piles, it is difficult for consumers to choose it.
Just like traditional fuel vehicles, if they are sold in a place without gas stations, consumers who want to buy them have to worry about how to refuel them after buying them.
A car without oil is no different than a piece of scrap metal.
As for cars, sometimes due to the needs of work and life, long-distance driving is often required, or there is an urgent need to travel far away. These are very big problems.
Although charging can also be done at home charging piles, due to circuit limitations at home, it is impossible to charge quickly unless a high-voltage wire is pulled in separately.
Take several current Kyushu cars as an example. The cruising range looks pretty good, with a full cruising range of five to six hundred or even seven to eight hundred, which is similar to the cruising range of many fuel vehicles.
However, if you use ordinary household 220v voltage for charging, it will take at least 24 hours at a time.
This is based on the premise that Jiuzhou Automobile has made certain optimizations in charging performance.
Voltage can be increased through a booster device, but current cannot. Large currents must be supported by a circuit network and thicker wires.
If the original slow charging method was used, it would take at least two days and two nights to fully charge an electric car with a range of 500 kilometers.
Being unable to use the car for two days and requiring a fixed parking spot for charging is absolutely unacceptable to the vast majority of consumers.
Even if the charging time has been shortened to one day and one night, the car cannot be used for long charging, and the tram parked at home is just a decoration, it is difficult to impress consumers.
In addition to users' household electricity charging, there is also the construction of fast charging stations or battery swap stations.
Using higher voltage and larger current to fast charge the battery in a shorter time can effectively reduce the battery charging time.
However, there are still very big problems in the construction of such fast charging stations.
The first site cost, purchasing and building charging stations is a large expense.
Just like gas stations, charging stations often need to be built in large numbers in cities, and the locations cannot be too remote. Otherwise, it is unrealistic to charge for dozens of kilometers and directly dissuade consumers who want to buy a car.
It's okay in small cities, but in big cities, land prices are not cheap. Even to use parking lots and the like, you still need to pay a very large amount of money.
Unless we wait until the official end to support the construction of charging stations later, we will spend less money to complete the construction of the charging network.
In addition to the actual civil construction costs.
Second, the cost of circuit network construction.
A line network that can withstand high voltage and high current is also an important expenditure.
Because now in 2010, the circuit networks in many areas do not have the strong power transmission capacity that they have after more than ten years of transformation. They even need power grid transformation, which involves the construction of electric piles in the circuit network and so on.
After high-voltage power is available, it is necessary to build a power transformation and distribution system to control the voltage and current to a suitable voltage and current.
The third expense is employee expenses and other miscellaneous expenses during operation.
Nowadays, we are not in the era of widespread smartphones. You can pay for charging by scanning the QR code on your mobile phone, and the bill will be automatically settled after it is fully charged.
If there is no convenient way to even charge revenue, this is also a very big problem.
Using the simplest method, manual billing, during operation, a charging station needs to be equipped with at least six or more chargers, responsible for day shift and night shift site management and equipment abnormal maintenance.
The construction cost of a charging station that can accommodate 20 electric vehicles and perform fast charging at the same time is more than 5 million!
Even so, with the current second-generation fast charging technology of Kyushu Motors, the charging time of several Kyushu cars can only be controlled to about two hours.
Two hours still seemed a bit too long.
Therefore, battery swapping technology may be more suitable for today's Kyushu Automobile at this time.
Charging and battery swapping are two technologies with slightly different development routes, but their purpose is to enable electric vehicles to quickly replenish energy.
If the current time point is 2023, Jiuzhou Auto will naturally use the charging protocol used by most car companies and adopt fast charging technology.
But the time now is 2010, and charging piles have not become popular at this time.
And it is very likely that in the future, the development route of charging or battery swapping will be decided by Kyushu Motors.
The advantage of charging technology is that one charging station can charge many brands of vehicles, unlike a battery swapping station where one brand often operates alone.
This advantage has no meaning for today's Kyushu Motors. Now and in the future, only electric cars like Kyushu Motors will be hot-selling in the market.
Compared with battery replacement, car companies do not need to invest more capital costs to purchase batteries for charging to ensure user use.
This is not of much significance to Kyushu Automobile. The cost of batteries produced by itself is lower than those purchased by car companies.
The disadvantage of charging stations is that the charging time is too long. Even if fast charging technology develops further, it will be difficult to achieve fast charging technology within ten minutes for a long time in the future.
At the same time, the charging time is not fixed and there is no plan. There may be many cars charging at the same time, or there may be only one or two cars charging in a large charging station.
No matter what, we must consider the power pressure when all parking spaces are full of cars for fast charging, and the circuit network construction must be more solid.
With battery swapping technology, the battery is charged in a battery swapping station. The charging and discharging power can be controlled at the same time, and the battery is charged using off-peak power at night.
Circuit construction costs can also be reduced a lot, and there is no need to continuously improve the overall circuit network transmission capacity of the charging station.
Even the batteries in the battery swap station do not necessarily need to be charged in the battery swap station.
It can be built directly next to the main circuit network in the suburbs, saving a lot of land costs.
You only need to transport the charged electricity through trucks and vehicles to various battery swap stations in the city, and then charge the batteries replaced in the battery swap stations.
The batteries in the charging stations can even be used for energy storage, charging during valley hours and discharging during peak hours to supplement the power grid. The government will also provide certain subsidies.
(End of chapter)
