Warning! The authors have discovered some serious known errors in the files and they are working on replacing them. They humbly apologize for the inconvenience.

This dataset is composed of 10 scenarios, all known to be feasible, based on the 179-bus model of the Western Systems Coordinating Council (WECC/WSCC) developed at the University of Wisconsin – Madison ("DC Multi-infeed Study," Electric Power Res. Inst. TR-104586, Dec. 1994.) For this dataset special emphasis was placed on generating a large set of security contingencies.