This LiveWire Spotlight addresses the initial posting of the BES Definition Guidance Document, a sixty three page “how-to” manual developed by the project team authoring the new definition of the Bulk Electric System. The guideline includes examples, clarifications, and explanations of how the BES/non-BES demarcation should be determined in common power system architectures.

The initial draft of the guidance document for the definition of the Bulk Electric System has been posted for an informal 45 day review period. Clients have until November 5, 2012 to submit their comments to the project team.