This is a great idea! If we could really invent something like this, it will be really great when it comes to using electricity.
In India, this will be the amazing solution. Here, the rural areas suffer due to load shedding which is undertaken to fulfill electricity demand in cities.
It will be great of us if we at cities monitor how much electricity consumption is done. There are many online devices which can monitor power for one. One of which is OHM Assistant ( https://ohmassistant.com/ )
This device monitors power consumption of home appliances and display it on easy to use interface on your smartphone. This helps you to save power by tracking down devices using most energy and then those can be replaced with energy efficient devices. This will help us to keep track of sudden electricity surges or power leakage. This in return will help to solve the load shedding problem.
