TransActions - November/December 2015 - GDS Associates

TransActions – November/December 2015

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The Next Evolution of Residential Rates

ExplorerTraditionally, residential rate design has done an imperfect job of recovering fixed costs appropriately. For decades, the standard residential rate has consisted of a customer charge and a consumption-based charge. The customer charge is a fixed amount billed each month regardless of energy consumption. There are, of course, many different forms this basic model can take, but the key fact is many fixed costs1 are recovered through the variable rate component (e.g. the energy charge). There were several reasons this was (or, more likely still is) the case, including lack of affordable interval metering technology.

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OATT Ancillary Services

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?

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