How does Tesla charge? Is it free?

Tesla sent a 40-amp single-phase wall-mounted connector to consumers in China. According to the power supply, it can achieve a charging speed of about 50 kilometers per hour, and this equipment is optional in the United States, and the price is 65438 US dollars +0200 US dollars. Users only need to have a fixed parking space, and after communicating with the property, they can be installed by a third-party team.

1. First of all, there are 40A, 50A, 60A and other household electric meters in China, with a household voltage of 220v V.

Let's calculate the 40-year-old electric meter. Well, according to the above popular science knowledge, we know that the maximum domestic power is 220 V * 40A = 8.8 kW.

It is known that the maximum power is 8.8KW. If there is no other electrical equipment at all, if 60 models are charged at full load with this meter, it will be 60 kWh ÷ 8.8 kW ≈ 6.8 hours, that is, 6.8 hours. If the 3KW load of household appliances such as lighting, computer, TV and air conditioner is removed, it will take about 10 hour to fully charge. (It is set to rush from 9: 00 pm to 7: 00 am, and the electricity price in the valley is 4 cents once, 24 pieces are full, and it can travel 345 kilometers. What a bargain! )

2. Install a charging connector on the 220v circuit, which can charge the car with twice the current of the socket. This maximum current is twice that of a single charger-but if the dual charger configuration is selected, the maximum charging power can be doubled to nearly 20KW, thus matching the maximum output current of the charging connector.

3. The charging speed is also affected by the regional transformer load: for example, your home is a regional public transformer. In hot summer, every household turns on the air conditioner. When the transformer load reaches the peak, the voltage will still drop slightly, which will also affect the charging speed of electric vehicles.

This kind of question feels meaningless.

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