Economical feasibility of off-grid hybrid power supply for estonian remote areas—part 1: Hybrid components sizing

Abstract

The paper considers the implementation of an off-grid hybrid power supply as an alternative to the construction of a conventional power supply lines in sparsely populated remote areas in Estonia. In the first part of the paper, the economical study of off-grid hybrid systems was conducted at different typical geographical conditions including coastal and inland ones. The load demand and interest rate were the parameters for sensitivity analysis. The configuration of the studied systems could include photovoltaics, wind turbines, a diesel generator, and batteries. The components were sized through optimization procedures. The levelized costs of energy were calculated for the considered cases.