Valuation of Two-Part Tariff Based on Electricity Demand Uncertainty

Abstract

The two-part tariff is adopted not only to many of the contracts for electricity supply but also to those for capacity trading. Previously, the fixed charge in the two-part tariff was thought to cover a part of fixed costs, but now it is getting considered to be a premium for the capacity reservation as the deregulation of the power industry progresses. The two part tariff appropriately reflects risk and cost is expected to ensure the adequacy of power supply. In this study, the valuation modeling for the two-part tariff under power demand uncertainty is constructed and some perspectives are provided.