READ FULL ARTICLE
Transmission dependent utilities (TDUs) have to sort through a myriad of ancillary service schedules that are contained within the open access transmission tariffs (OATT) of their electric transmission service providers. What are these “ancillary” services? Which ones need to be purchased? What is the basis for the charges under the various ancillary service schedules? For the generation based ancillary services, can the service be self-supplied with customer-owned generating resources or other non-generation resources?
READ FULL ARTICLE