2.3 Ancillary Services

Ancillary Services are needed with Transmission Service to maintain reliability within and among the Control Areas affected by the Transmission Service.  The ISO

provides the following Ancillary Services:  (i) Scheduling, System Control and Dispatch, (ii) Voltage Support Service, (iii) Regulation Service, (iv) Energy Imbalance; (v) Operating Reserves Service, and (vi) Black Start Service. 

The specific Ancillary Services, prices and/or compensation methods are described on the schedules that are attached to and made a part of this Tariff.    Sections 2.3.1 through 2.3.6 below list the six Ancillary Services.

2.3.1 Scheduling, System Control and Dispatch Service: 

The costs for Scheduling, System Control, and Dispatch Service are included among those costs recovered through Schedule 1.

2.3.2 Voltage Support Service: 

The rates and/or methodology are described in Schedule 2.

2.3.3 Regulation Service: 

The rates and/or methodology are described in Schedule 3.

2.3.4 Energy Imbalance Service: 

The rates and/or methodology are described in Schedule 4.

2.3.5 Operating Reserve Service: 

The rates and/or methodology are described in Schedule 5.

2.3.6 ISO Black Start Capability: 

The rates and/or methodology are described in Schedule 6.