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FERC Approves Regional Reliability Standard PRC-006-SERC-02

On October 16, 2017, in Docket No. RD17-9-000, FERC issued a letter order approving regional Reliability Standard PRC-006-SERC-02 (Automatic Underfrequency Load Shedding (UFLS) Requirements). Regional Reliability Standard PRC-006-SERC-02 establishes consistent and coordinated requirements for the design, implementation, and analysis of automatic UFLS programs among all SERC applicable entities. In particular, the standard adds requirements to address: (1) identifying a Planning Coordinator’s subregion as an island; (2) developing a UFLS plan to meet specified criteria; (3) conducting simulations for load and generation imbalance UFLS schemes; (4) implementing the UFLS scheme for entities with loads 100 MW or greater and for entities with loads less than 100 MW; (5) implementing changes to the scheme within a specified timeframe; and (6) providing certain information to SERC.

To view FERC’s order, click here.