The Electric Energy Commercialization Council (CCEE) publishes, on a weekly basis, energy price (PLD). This price is used to value the buy and sell of the energy in the short term market in Brazil. Most transactions in the Brazilian energy market are indexed to the energy price (PLD). Its calculation is based on predicted information, previous to the system operation. The complete process of pricing consists in utilizing two computational models, NEWAVE and DECOMP, which produce the Marginal Cost of Operation (CMO) of each of the four submarkets (Northeast, North, Southeast and Midwest, and South). These models use enormous quantities of complex input variables. The present work, therefore, aims on using a simplified Dynamic Projection model, which only uses data provided by the sector’s agencies, publicly published, and easily extracted for use.