Grid Reliability Overview

WECC Balancing Authority Map

Ensuring reliable operation of the electric grid in the Western Interconnection is the responsibility of the Western Electricity Coordinating Council (WECC), the Regional Entity. The Western Interconnection Regional Advisory Body (WIRAB) is authorized, pursuant to Section 215 of the Federal Power Act, to provide advice to WECC, the Federal Energy Regulatory Commission (FERC), and the North American Electric Reliability Corporation (NERC) on whether proposed reliability standards and the governance and budgets of NERC and WECC are in the public interest. Additionally, FERC may request that WIRAB provide advice on other topics.

The Western Interconnection is uniquely structured in that it does not have organized markets (outside of the California ISO), but rather, is organized into 38 separate balancing authorities (BAs).