When selecting AC charging piles for domestic electric vehicles in the Mexican region, both 11kW and 22kW ones have their own advantages. The specific choice depends on various factors. The following is some analysis:

1. Charging speed requirements:

  • 11kW AC charging pile: It can charge 11 kilowatt - hours of electricity per hour, which can support the vehicle to travel approximately 60 kilometers. For the daily use of general household electric vehicles, if the battery capacity is not particularly large, the charging speed of 11kW can basically meet the demand. It can charge during the night or when the vehicle is idle, and the battery can be charged to an ideal state within a few hours.
  • 22kW AC charging pile: It can charge 22 kilowatt - hours of electricity per hour and support the vehicle to travel approximately 120 kilometers. The charging speed is significantly faster. If the vehicle owner has a high requirement for charging time and hopes to complete charging in a shorter time, for example, when it is necessary to quickly replenish the power temporarily for continued use of the vehicle, the 22kW AC charging pile will be more suitable.

2. Vehicle compatibility:

  • 11kW AC charging pile: Currently, the on - board chargers of many electric vehicles can better adapt to the charging power of 11kW. Especially for some mid - to - high - end electric vehicle models, using an 11kW AC charging pile can achieve a relatively fast charging speed.
  • 22kW AC charging pile: Some electric vehicles may, due to the limitations of the on - board charger, not be able to fully utilize the high - power charging of 22kW. Even if a 22kW AC charging pile is used, the actual charging power may not reach the maximum value. Therefore, before choosing a 22 - kW AC charging pile, it is necessary to confirm whether the vehicle supports charging at this power.

3. Power infrastructure and installation cost:

  • 11kW AC charging pile: Installing an 11kW charging pile requires 380V three - phase electricity, and the requirements for power lines are relatively high. However, in some newly - built residences or areas with better power facilities in Mexico, applying for and installing 380V three - phase electricity may be relatively easy. The installation cost is also relatively moderate, but it will be higher than that of ordinary 220V household charging piles.
  • 22kW AC charging pile: The 22kW AC charging pile has higher requirements for power lines and requires more stable three - phase power sources and larger - capacity electricity meters and other power facilities. In Mexico, if the power infrastructure in the family's area is relatively old or the power supply is unstable, it may not be able to meet the installation requirements of the 22kW AC charging pile. And its installation cost may be higher, including line renovation, electricity meter upgrade and other expenses.

4. Future usage expandability:

  • 11kW AC charging pile: If there is no plan to replace an electric vehicle with a larger battery capacity in the future, or the demand for increasing the charging speed is not high, the 11kW AC charging pile can meet the usage requirements for a long time.
  • 22kW AC charging pile: Considering the continuous development of electric vehicle technology, there may be vehicle models with larger battery capacities and higher requirements for charging speed in the future. To a certain extent, the 22kW AC charging pile has better future usage expandability and can better adapt to the upgrade of vehicle technology.

In conclusion, if you have a high requirement for charging speed, the vehicle supports it, and the local power infrastructure allows, the 22kW AC charging pile is a better choice; if the requirement for charging speed is not particularly urgent and more attention is paid to cost and applicability, the 11kW AC charging pile may be more suitable for the charging needs of domestic electric vehicles in the Mexican region. Before making a choice, it is recommended to consult the local power supplier or a professional charging pile installation company to ensure that the installation and use of the charging pile comply with relevant standards and requirements.