What is the typical wattage for home charging of electric vehicles?

[StLincoln]

Electric vehicle home charging typically operates at 7KW. The relevant information regarding the power of home charging for electric vehicles is as follows: 1. Introduction to charging power: Charging stations are divided into two main categories, AC (alternating current) stations and DC (direct current) stations. Generally, AC stations have a power of 7KW and use 220V single-phase power. DC stations come in various power levels such as 30, 60, 100, 150, and 200KW. The actual charging power depends on the matching between the electric vehicle's battery parameters and the charging station, and it varies with the charging state. The exact power depends on the car's battery capacity. Generally, small and medium-sized electric vehicles have a capacity of 18 kWh when fully charged. If it takes 6 hours to fully charge, then the power would be 18/6=3 kilowatts. To calculate this, you need to know the input voltage and current of the charger. Moreover, during charging, the current consumed by the charger continuously changes and does not remain constant, so the calculated result is only a reference value. 2. Battery capacity factor: If it takes 6 hours to fully charge, then the power is 18/6=3 kilowatts, equivalent to a standing air conditioner. The power depends on the car's battery capacity, with small and medium-sized electric vehicles typically holding 18 kWh when fully charged. The charging power of electric vehicles accounts for about 15% of the national installed capacity. If fast charging stations are used during peak electricity periods, it could lead to a power gap of hundreds of billions of kilowatts. Conversely, during off-peak periods, about one-third of the installed capacity, or 2-2.5 billion kilowatts, is available. High-power charging can significantly improve charging efficiency, increase the utilization rate of charging stations, and appropriately reduce the vehicle-to-charger ratio. 3. Charging time: Different operating modes of electric vehicles require different charging times, which in turn require different charging methods to meet these needs. When the charging time requirement is not urgent, conventional charging can be done during off-peak electricity hours to extend the vehicle's range. When charging time is more pressing, fast charging or rapid battery swapping is needed to replenish the energy promptly.