SG is s device connected to internet, which helps you to consume electricity only when it's cheap and to switch off the heavy consumers on price peak hours.

SG knows, what is the current power price and when connected to heavy consumers it chooses the best time in a day to switch them on and off. 

Using SG is perfect in combination with heat pumps, electrical floor heating, electrical water boilers.

The price of a SG device for you is 199€.