Can solar panels charge new energy cars

Solar panels can charge new energy vehicles, solar panels through the inverter can output 220V ac voltage, theoretically with 220V power can charge electric vehicles, but the charging power is very small, the charger may not work, or charging slow, charging time will be extended a lot. It doesn’t make sense to charge a car from the sun without large, efficient panels.

The most common polysilicon solar panels in the world, for example, have a conversion rate of only about 17 percent. In a light intensity of 1000W/m and a temperature of 25°C, the output power of each square meter of panels is about 170W. The solar panel output is dc voltage, but also need to use a solar inverter to convert the direct current into 220V ac. After using the inverter, it involves the power loss of the inverter. The efficiency of the general inverter is about 90%. Then 170W ×0.9= 153W, when the temperature of the standard lighting environment is 25°C, the output power of one square meter solar panel is about 150W. That is to say, a 1m panel can only be used for appliances below 150W.

Can solar panels charge new energy cars

If we charge the car with a single panel, here’s what happens: the inverter overflows into a protected state and cannot effectively charge the car.

Car charging power is very high, even portable slow charging wire power is around 3kW. When the 3KW load is inserted into the 150W inverter, the output current of the inverter increases by N times, the input current of the solar panel will be doubled and close to a short circuit. At this point, the solar panel voltage will quickly pull down, when the voltage is low to the inverter low voltage protection threshold, the inverter will enter the protection mode, the inverter will stop working. Charging new energy vehicles in this situation is very difficult.

If the low-voltage protection problem can be solved to charge the car, then the charging time will be extended indefinitely.

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