Reliability Assessment of Transmission Reinforcements Delay in the Brazilian Expansion Planning

The main objective of this study is to show how a probabilistic reliability assessment can be used to evaluate the impact of transmission lines construction delay in the Brazilian Transmission Planning, which is defined based on deterministic criteria. These impacts are measured in terms of the changes in transmission losses and expected energy not supplied. Possible delays in the 10-year transmission plan of the Brazilian Northeastern region are analyzed with the use of a transmission planning software tool developed by CEPEL.