Comparision of Network Tariff Mechanisms in the Context of Nepalese Grid

The electricity sector is a crucial part of economic development. This paper presents a comparative analysis of network tariff mechanisms practiced in South Asian countries, with a specific focus on the sub-region comprising Bangladesh, Bhutan, India and Nepal (BBIN). Unlike approaches that rely solely on expense calculations, tariff determination is influenced by a multitude of factors, including generation, transmission, distribution, operation and maintenance, amortization, and governmental taxation. Consequently, network tariffs differ significantly between countries or regions within a country. This paper discusses different tariff mechanisms practiced in various countries, with a focus on one of the countries in the South Asia: Nepal. The findings in this paper evaluates the performance of different mechanisms used by sub-region countries to determine tariffs and highlight the opportunities and challenges to be addressed in setting efficient and appropriate tariff mechanisms in the context of the Nepalese grid. It suggests that adopting long-run marginal pricing for generation, reverse MW-Mile variant for transmission, and dynamic pricing without cost-subsidization for distribution could reduce peak load and costs.