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Feasibility Analysis of an Islanded Microgrid in Tohatchi, New Mexico Using HOMER Pro

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Document pages: 18 pages

Abstract: Microgrids are becoming more popular in areas where there is still noconnectivity to the main grid largely due to their remote geographicallocation. This paper focuses on the feasibility analysis, using the HOMER Prosimulation program, of an islanded micro-grid for the Navajo community inTohatchi, New Mexico using different energy mixes of a Photovoltaics (PV)system, a Wind Energy system, a Battery Energy Storage System (BESS) and aDiesel Generator. The Net Present Cost (NPC), and theLevelized Cost of Electricity (LCOE), were the two crucial economic factorsconsidered. Through the analysis, the system with the PV, wind turbines,battery, and a diesel generator was found to have the lowest LCOE and NPC.There was a reduction of 75 in the costs of the combined system as compared tothe diesel-only base case. Also, this combined system provided the minimumemission levels. The analysis suggests that the integration ofrenewable energy using microgrids to help the access of energy for rural areaswas possible. The analysis could very well be extended to any other community byconsidering the wind and solar resources present at that location.

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