By: Steve Persutti, VP of Operations Development, Power Delivery Engineering
On June 13, 2013 the Federal Energy Regulatory Commission (FERC) issued an order approving a request from NERC to extend the deadline for a new definition of the Bulk Electric System (BES).
Utilities now have until July 2014 (rather than 2013) to review their systems and consider what changes are needed to improve reliability and be in compliance with the new BES definition.
- NERC was directed to implement exclusions for radial systems (E1) and local networks (E3) so that they do not apply to generator interconnection facilities for bulk electric system generators identified in inclusion I2.
- Subsequently, NERC was directed to modify the exclusions to ensure that generator interconnection facilities at or above 100 kV connected to bulk electric system generators identified in inclusion I2 are not excluded from the bulk electric system.
- NERC was also directed to modify the local network exclusion to remove the 100 kV minimum operating voltage to allow systems that include one or more looped configurations connected below 100 kV to be eligible for the local network exclusion.
The extension to July 2014 will help NERC and its regulated entities resolve “uncertainties” and develop modifications to the BES definition that effectively address the above requirements. More information can be found in NERC’s motion for extension.
NERC must produce a revised definition, fully responsive to FERC’s directives by the end of this year.
It is important for regulated entities to make the best use of this additional time to review their systems and prepare for compliance with the new BES definition. Addressing areas such as technical evaluation, system design, maintenance operations and training will be critical to the compliance process.
For more information, please download TRC’s NERC Compliance Support overview and stay tuned to this blog for continued updates on this subject.
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