It is not possible to designate a specific location or charging network as the absolute cheapest option, as prices can continuously change and depend on individual circumstances.

However, there are some tips you can follow to find the cheapest charging option:

1. Compare charging networks: Different charging networks have different rates. It is worthwhile to compare the prices and terms of various charging networks to see which one offers the most favorable rates.
   
   

2. Look at subscriptions and offers: Some charging networks offer subscriptions or have special offers with lower rates. By looking at subscriptions and offers, you may be able to benefit from lower charging costs.
   
   

3. Consider charging at home: Charging at home is often cheaper than charging at public charging stations. If you have the opportunity to install a charging point at home, this can be a cost-effective option in the long run.
   
   

4. Plan wisely: Some charging networks use dynamic rates based on demand and the time of charging. By planning your charging sessions during periods with lower rates, you might be able to save on costs.

It is important to remember that the price is not the only factor to consider when choosing a charging option. Reliability, availability of charging points, and charging speed are also important considerations. Therefore, it is advisable to find a balance between costs and other factors when choosing a charging option.