A NETWORK REFORMULATION OF AN ELECTRIC UTILITY EXPANSION PLANNING-MODEL

We reformulate a multiperiod capacity expansion model of electric util ities as a network model. We show how to reconstruct the dual solution of the original mathematical program from the network model solution. To formulate the network model, we use information about the properti es of the optimal solution of the mathematical program to reduce the n umber of constraints. The remaining constraints are then readily conve rted into network constraints.