Multiple Scenario and Criteria Approach for Optimal Solution and Sizing of Household Off-grid System

Abstract

The aim of this publication is to determine the optimal mix and sizing of household off-grid system, using the scenario approach. Homer Pro software was used to simulate the off-grid systems, using multiple criteria, such as minimisation of net present costs, increasing the fraction of renewable energy sources (RES), and reducing excess electricity. Three different off-grid technological alternatives, three dispatch strategies, restrictions on some component operation as well as sensitivity of fuel price and capacity shortage were considered to build up scenarios. The case study was calculated for real household customer with load profile, which includes load of heat pump and charging of electric vehicle. The results were thoroughly analysed to determine the advantages and disadvantages of used method and propose the improvements to this method to be implemented in the future research.