Load Models for Electricity Distribution Price Regulation

Abstract

The Finnish Energy Authority, which regulates electricity distribution network operation, was given a new task in 2017 when the law on electricity markets changed. The new law states the distribution fees in any consumer segment can increase a maximum of 15 % during a period of 12 months. To enforce this law, the regulator must be able to calculate average distribution charges for different customer segments. In this paper, we aim to create type consumer load models that can be used to calculate average distribution charges with a wide variety of distribution tariffs. The tariff structures are not regulated and they can contain differently defined time-of-use periods, peak periods, and maximum demand calculation principles. In addition, possibility to evaluate novel distribution tariffs with power and tier limits is considered.