Technology overlord starts with new energy vehicles

While eating, Xu Yifan was also thinking about the company's future development.

In this year of 2010, it is too difficult to develop new energy electric vehicles.

Now and in the future after 2021, there are charging pile environments in almost all cities across the country, which are completely two concepts.

Unlike ordinary fuel vehicles, new energy vehicles require more supporting facilities.

But at this time point, there are very few places in the country that can provide fast charging for electric vehicles, except for Jiangzhou City and the two charging stations that Kyushu Automobile has tried to build.

And a pure electric car, without the support of charging piles, it is difficult to get consumers' choice.

Just like a traditional fuel car, it is sold in a place without gas stations. Consumers want to buy it, but they also have to worry about how to refuel after buying it.

A car without oil is no different from a pile of scrap iron.

As for cars, sometimes because of the needs of work and life, they often have to drive long distances, or they need to take a long trip urgently. These are very big problems.

Although home charging piles can also be charged, the circuit in the home is limited. Unless a high-voltage wire is pulled separately, it is impossible to have a fast charging speed.

Take the current Kyushu cars as an example. The cruising range looks pretty good, with a full cruising range of five or six hundred or even seven or eight hundred, which is similar to the cruising range of many fuel vehicles.

But if you use ordinary household 220v voltage to charge, it will take at least 24 hours at a time.

This is on the premise that Kyushu Automobile has already optimized the charging performance to a certain extent.

The voltage can be carried out by a booster device, but the current cannot. The large current must be supported by a circuit network and thicker wires.

If you use the original slow charging and charging, it will take at least two days and two nights to fully charge a tram with a cruising range of 500 kilometers.

It is absolutely unacceptable for the vast majority of consumers to not be able to use the car for two days and also need a fixed parking spot to charge.

Even if the charging time has been shortened to one day and one night, the car cannot be used for long-term charging, and the tram parked at home is just a decoration, and it is difficult to impress consumers.

In addition to the user's household electricity charging, it is the construction of a fast charging station or a power station.

Using higher voltage, higher current, and faster charging of the battery in a shorter time can effectively reduce the charging time of the battery.

However, there are still very big problems in the construction of such a fast charging station.

The first site cost, buying and building a charging station is a big expense.

Just like gas stations, charging stations often need to be built in large numbers in cities, and the locations should not be too remote, otherwise it is unrealistic to run for tens of kilometers with a single charge, and directly discourage consumers who want to buy a car.

Small cities are okay, but land prices in big cities are not cheap. Even if you use a parking lot or the like, you need to pay a very large sum of money.

Unless you wait until the official end to support the construction of charging stations, spend less money to complete the construction of the charging network.

In addition to the actual civil construction costs.

The second is the cost of circuit network construction.

A line network capable of withstanding high voltage and high current is also an important expenditure.

Because in 2010, the circuit network in many areas does not have a strong power transmission capacity after more than ten years of transformation, and even requires power grid transformation, which involves the construction of electric piles in the circuit network and so on.

With high voltage electricity, it is also necessary to build a power transformation and distribution system to control the voltage and current to an appropriate voltage and current.

The third expense is miscellaneous expenses such as staff expenses during operation.

Today is not the era when smartphones are popular. You can pay for charging by scanning the code on your mobile phone, and it will be automatically settled after it is fully charged.

If there is no convenient way, even revenue billing, this is a very big problem.

The simplest method is manual billing. During the operation period, a charging station needs at least six or more charging workers to be responsible for day shift and night shift site management and equipment abnormal maintenance.

A charging station that can accommodate 20 electric vehicles and perform fast charging at the same time, the construction cost is more than 5 million!

Even so, with the current second-generation fast charging technology of Kyushu, the charging time of several Kyushu cars can only be controlled to about two hours.

Two hours still seems a bit too long.

Therefore, the battery replacement technology may be more suitable for Kyushu Automobile at this time.

Charging and battery replacement are two technologies with slightly different development routes, but the purpose is to enable electric vehicles to quickly replenish energy.

If the current time node is 2023, Kyushu Automobile will naturally adopt the charging protocol that most car companies are using, and adopt fast charging technology.

But the time now is 2010, and charging piles have not become popular at this time point.

And it is very likely that in the future, the development route of charging or battery replacement will be determined by Kyushu Motors.

The advantage of charging technology is that a charging station can charge many brands of vehicles, unlike changing a power station, often a certain brand is used alone.

This advantage does not mean anything to Kyushu Automobile today. Now and in the future, only electric vehicles such as Kyushu Automobile will be sold in the market.

Compared with battery replacement, car companies do not need to invest more capital costs to purchase batteries for charging to ensure users' use.

This point is not very meaningful to Kyushu Automobile. The cost of batteries produced by itself is lower than those purchased by those car companies.

The disadvantage of the charging station is that the charging time is too long. Even if the fast charging technology develops, it will be difficult to achieve the 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 the large charging station.

In any case, it is necessary to consider the power pressure when all the parking spaces are full of cars for fast charging, and the construction of the circuit network must be more solid.

Battery swap technology, the battery is charged in the swap station, which can control the charging and discharging power at the same time, and use the night valley power to charge.

The cost of circuit construction can also be reduced a lot, and there is no need to continuously improve the power transmission capacity of the overall circuit network of the charging station.

Even the battery in the replacement station does not necessarily need to be charged in the replacement station.

It can be directly built next to the main circuit network on the outskirts of the city, saving a lot of land costs.

You only need to transport the charged electricity to various battery swapping stations in the city through trucks and vehicles, and then charge the batteries replaced in the swapping stations.

The batteries in the charging station can even be used as energy storage, charging during off-peak hours, and discharging during peak hours to supplement the power grid. There will also be a certain amount of government subsidies.