Hello. It all depends on the price of electricity in your region. And it can vary greatly depending on tariffs. It is also important to pay attention to the battery capacity of your electric car. The larger the battery capacity, the more charging can cost. Personally, I am charging an electric car using CSE1 LEVEL-2 EV https://cyberswitching.com/level-2-ev-charger/. In general, all the same, such charging costs cheaper than a car with the use of gasoline or diesel.