Emergency Manual Load Shedding and Peak Load Reduction ...

1.0 GENERALOO 6T-29Effective Date: 02 July 2014Page 2 of 13Certain system conditions require BC Hydro to shed customer load rather than risk an uncontrolledfailure of components or cascading outages of the Interconnection. This order specifies proceduresto manually shed customer load after all other remedial steps have taken place. It also specifies PeakLoad Reduction Procedures and guidelines to trip inter-ties to protect BC Hydro system in severeunder frequency situations.Refer to the following BC Hydro operating orders for various load shedding programs whichEmergency Manual Load Shedding (EMLS) is considered supplemental to or to be used inconjunction with:Note:OO 6T-25: Operation Plan for Capacity and Energy Emergencies.OO 6T-28: Automatic Under-Frequency Load Shedding program.OO 6T-34: Automatic Under-Voltage Load Shedding program.Load shedding in the Ft Nelson Area is implemented automatically due to Alberta IntegratedSystem conditions or directed by AESO. Refer to 3T-FNC-01 and 7D-FNN-01.Refer to OO 1T-07B for the authority of System Operators to carry out customer firm load shedding.This order complies with NERC Standard EOP-003 Load Shedding Plans.2.0 RESPONSIBILITIESThe Transmission Coordinator (TC) is responsible for assessing the need and has full authority to: Carry out or direct the applicable Grid Operator (GO) to carry out emergency manual loadshedding as needed. Carry out or direct the applicable Grid Operator (GO) to off-load interties as needed. Direct the applicable Load Operator (LO) to begin peak load reduction as needed.The Grid Operator (GO) is responsible for: Executing emergency manual load shedding directives from the TC on an emergency prioritybasis. Executing emergency intertie off-loading directives from the TC on an emergency prioritybasis. Taking any necessary immediate load shedding action to manage any local area risk.Whenever possible, advise the TC prior to acting.The Load Operator (LO) is responsible for: Executing for the peak load reduction directives by the TC on a priority basis. Taking any necessary immediate load shedding action to manage any local area risk.Whenever possible, advise the TC prior to acting.The System Control Manager (SCM) is responsible for: Assigning the TC to carry out the monthly EMLS exercise as described in Appendix 6 of thisoperating order. Advising the Manager, Real Time Operations of any required changes to this operating order.The General Manager, Real Time Operations is responsible for: Periodically reviewing the adequacy of the EMLS and Peak Load Reduction procedures withapplicable parties. Providing and maintaining facilities, supplemental procedures and personnel trainingadequate to meet the requirements of this operating order.