Expanding electricity transmission networks: an applicationof the HRV mechanism

Abstract

This research presents an application of the Hogan-Rosellón-Vogelsang (HRV) mechanism to promote electricity transmission network expansion in the Peruvian electricity transmission system known as SEIN (Sistema Eléctrico Interconectado Nacional). The HRV mechanism combines the merchant and regulatory approaches to promote investment into transmission grids. This mechanism give incentives for efficient investment in expansion of the network by the rebalancing over time of the fixed and variable charges of a two-part tariff in the framework of a wholesale electricity market with locational pricing. The expansion of the network is carried out through the sale of Financial Transmission Rights (FTR’s) for the congested lines. The mechanism is applied for 103 nodes of the SEIN using detailed characteristics of generators, nodes and transmission lines. Under Laspeyres weights and linear cost of expansion of transmission capacity, it is shown that price converge to lower levels as a result of increased transmission capacity.