Optimization of stand-alone hybrid-renewable power system usually considers the lowest costof energy. The optimum system configuration for which having the cheapest cost of energy will besuggested into implementation. However, the optimized system is typically valid only for theparticular base case condition. It may not be achieved for other specific conditions.This paperpresents supply-demand strategy options to enhance system optimization in terms of sizing, costand energy utilization for stand-alone hybrid-renewable distributed generation as well as CO2emission reduction. The system complete option consists of a diesel generator, PV module, windturbine, and battery that supply a village community in Eastern Indonesia with a base of 35 kWhdaily and 6.9 kW peak power demands.Simulation involves twosimultaneous scenarios, in whichsystem supplies different loading profile and operating reservevariation.The considered loadingprofiles are load shifting and valley filling, which are supplied by systems with various operatingreserves as percentage power output. It is revealed that the system with 10 PV-Wind turbineoperating reserve supplies a load shifting loading pattern shown the least cost of energy with USD0.369/kWh as well as the highest CO2 emission reduction, amounted 5,5 tons.
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