Henry Borden and Piratininga Power Plants are dispatched from a central unit, complying with the requirements of the National Operator of the Electric System-ONS (Operador Nacional do Sistema Elétrico). The generetion program is drawn up, with a minimum of 24 hours of antecedence of the implementation date, defining the hourly generation for each one of the power plants.

The Rasgão and Porto Góes power plants are dispatched in order to obtain the maximum availability for each hour, but their generation program is also established on a daily basis.

In addition to the availability of the generating units, the production program at the Henry Borden Power Plant also takes into consideration the storage management of the Billings Reservoir, as well as its compliance with the requests of the ONS, in order to reduce the generation deficits in the Interconnected System. Currently, with the environmental restrictions that prohibit the pumping of polluted waters into the Billings Reservoir, this power plant is working at approximately 10% of its generation capacity. However, its maximum generation during peak hours of electric energy consumption is of fundamental importance for the Interconnected System.

The dispatch of the generation I in the Piratininga Thermoelectric Power Plant is defined by the ONS, based on the fuel costs as compared to the water costs. This means that the power plant is dispatched only when the costs in R$/MWh determined by its fuel consumption are below the value for water consumption at that time. The ONS informs, by means of price determination mathematical models, which thermal power plants should be dispatched and the amount of generation to be obtained from each one. EMAE works up a daily generation program, using a computer system that connects the several electric energy generation companies and the ONS.