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 What We Do

Peak Reliability (Peak) delivers cost-effective services and engages in efficient and nondiscriminatory practices. It retains registration for, and fulfills the duties of, the Reliability Coordinator, as defined by the North American Electric Reliability Corporation, and as delegated by the Western Electricity Coordinating Council (WECC), for its Reliability Coordinator Area in the Western Interconnection.
Our vision is clear: Peak seeks to achieve the appropriate level of Bulk Electric System (BES) reliability at the least cost — considering all costs throughout the economy.
Peak system operators play a critical, administrative role to assure the integrity of the BES:
  • Peak system operators act in the interest of reliability for the Western Interconnection overall, before the interest of any single entity;
  • They provide an early warning of risks to the stability and security of the system by monitoring to detect Reliability Standard violations;
  • Individual Peak system operators have clear, decision-making authority to act and to direct that actions be taken by functional entities to preserve the integrity and reliability of the BES; and
  • They assume restoration leadership following major reliability events.
These Peak system operator functions provide situational awareness of the Western Interconnection.

Western Interconnection Synchrophasor Program  Western Interconnection Synchrophasor Program


The Western Interconnection Synchrophasor Program (WISP) began as a collaborative project to improve reliability of the Bulk Electric System (BES) in the Western Interconnection.


Between 2010 and March 2014, WISP installed more than 480 new or upgraded phasor measurement units (PMUs) in the Western Interconnection. PMUs deliver high-speed, synchronized measurements using a secure communications network and software in order to better manage the power grid. Today, system operators can visualize power system disturbances, and minimize the risk of these disturbances from evolving into a major, system-wide event on the BES.


Peak Reliability continues to play an important role in the program by housing the PMU registry, the historical data archives, disturbance reports, next-day studies, and the wide-area view.


WISP Benefits


  • Helps defer investment in transmission capacity expansions
  • Reduces ancillary service cost
  • Reduces wide-scale blackouts
  • Increases electric service reliability
  • Improves utilization of intermittent renewable generation

Learn More >>



Training  Training

RESTORATION TRAINING: For details on Restoration Training Drills scheduled.

SOL Methodology  SOL Methodology

This Interconnection-wide project will have far-reaching impact as it seeks to address several reliability gaps and inconsistencies in the planning and operations of the Western Interconnection, including reliability issues related to the September 8, 2011 Southwest event.