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NERC Files Petition for FERC Approval of Revised TPL Reliability Standards

On March 31, 2011, in Docket No. RM11-18, NERC submitted a petition for FERC approval of revised Reliability Standards TPL-001-1 (System Performance under Normal (No Contingency) Conditions); TPL-002-1b (System Performance Following Loss of a Single Bulk Electric System Element); TPL-003-1a (System Performance Following Loss of Two or More Bulk Electric System Elements); and TPL-004-1 (System Performance Following Extreme Events Resulting in the Loss of Two or More Bulk Electric System Elements).  As a result, NERC also requested FERC approval to retire the predecessor Reliability Standards TPL-001.0.1, TPL-002-0b, TPL-003-0a, and TPL-004-0.  The purpose of the changes is to clarify TPL Table 1, footnote ‘b’, as FERC had directed in paragraph 1797 of Order 693. To view NERC’s petition, click here.