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access icon openaccess Application of renewable energy resources in a microgrid power system

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Received 26/10/2018, Accepted 05/02/2019, Revised 29/01/2019, Published 15/03/2019

In order to meet the power prerequisites of their citizens, many countries are heavily dependent on the utilization of fossil fuels for power generation. This has reduced the natural reserve of fossil fuels and caused a large percentage of greenhouse gas emissions (GHGs). It is imperative to harness energy from renewable energy resources (RERs) as a measure to supplement the authors’ daily energy needs from the conventional units. The proposed microgrid system deals with the incorporation of the wind turbine generator (WTG), diesel generator, hydro turbine, photovoltaic and battery storage system for optimisation of net present cost (NPC), annualised cost of the system (ACS), GHG, fuel cost, operating costs and cost of energy (COE) by using hybrid optimisation model for electric renewables using HOMER software. The system is designed with the energy demand of 618 kWh/day at a peak load of 72.5 kW. The values of NPC, COE, ACS and fuel consumption obtained in the optimised configuration are $942,654/yr, $ 127,415, $0.327/kWh and 51,236 L/yr. The simulation results obtained from the optimised scenario reveal that the utilisation of RERs has been found to be a cost effective means to supply remote areas.

Inspec keywords: hybrid power systems; renewable energy sources; air pollution control; power generation economics; cost-benefit analysis; diesel-electric generators; hydroelectric generators; battery storage plants; photovoltaic power systems; distributed power generation; wind turbines; power engineering computing; fossil fuels; optimisation

Other keywords: NPC; diesel generator; power generation; annualised cost of the system; cost effective; electric renewables software; fuel consumption; hybrid optimisation model; cost of energy; GHG; fossil fuels; energy 0.327 kWh; remote areas; microgrid power system; net present cost; greenhouse gas emissions; wind turbine generator; photovoltaic system; battery storage system; technical constraints; RER; COE; hydro turbine; ACS; energy demand; renewable energy resources; WTG; fuel cost; power 72.5 kW; economic constraints; HOMER software; power requirements; operating costs

Subjects: Distributed power generation; Power engineering computing; Power system management, operation and economics; Optimisation techniques; Optimisation techniques; Wind power plants; Diesel power stations and plants; Hydroelectric power stations and plants; Solar power stations and photovoltaic power systems

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