Customers receive electricity supply in balancing groups. Balancing groups can withdraw and/or add capacity. The manager of a balancing group ensures that the balance of capacity in the balancing group is equal in every 15-minute period measured. This means balancing capacity for overall demand on the one hand and overall supply on the other.
Amprion matches the total net amount of deviations in all the balancing groups in the control area by sending control energy from contracted power plants (see details about control energy).