The regional entities, at the bottom of the structure for the development and enforcement of the reliability standards for the US electric grid, were established by the Section 215 of the Federal Power Act as amended by the Energy Policy Act of 2005. The statute tried to mimic the balance of power between the federal and state authorities in the US, with REs playing the role of regional (state-like) components.[5]
The reliability standard development process had Regional Entities developing regional standards, to be approved by NERC and FERC. By the 2010, the process was slow: just nine standards were developed, all by the WECC.[5]
An RE approves the transmission plans and chooses the projects for regional (as opposed to per-local-pricing-zone) cost allocation.[8]
One of the important roles of an RE is suggesting to NERC (and FERC) to include the facilities into - or exclude from - the list of "elements" that constitute the bulk-power system (BPS, also known as a "bulk electric system", BES), subject to the oversight of the NERC.[9]
^Goldfarb, Eli; Nasir, Iqra; Spinner, Amanda (December 2020). "Electric Transmission Policy in the United States"(PDF). closup.umich.edu. Center for Local, State, and Urban Policy. p. 10. Retrieved 5 November 2022.
Skees, J. Daniel (June 2010). "Inventing the Future of Reliability: FERC's Recent Orders and the Consolidation of Reliability Authority". The Electricity Journal. 23 (5): 7–15. doi:10.1016/j.tej.2010.04.015. ISSN1040-6190.