1. A production planning system for allocating production capacity to meet a demand, comprising: a demand receiver configured to receive input demand data; a demand consolidator in communication with the demand receiver and configured to calculate a consolidated demand as a sum of all input demand data upon receipt of input demand data by the demand receiver; a capacity balancer for calculating and storing a production capacity; and a planning module configured to create a production plan by allocating production capacity to meet the consolidated demand based on the consolidated demand and the production capacity.