An Efficient Solar-Wind-Diesel-Battery Hybrid Power System for St. Martin Island of Bangladesh

Abstract

St. Martin’s island is a small island in the Bay of Bengal about 17 km far from the main land of Bangladesh. Nearly6000 inhabitants live there and fishing is their primary livelihood and as a tourist spot there are many hotels and rest houses. Since the island is far away from the main landgrid connection is almost impossible even in future due to its geographical position. However, the electricity demand is partly fulfilled by stand-alone diesel generators. In this study, an attempt has been made to model a hybrid electricity generation system for a small community of the island. This system incorporates a combination of solar PV, wind turbine, battery and diesel generator. HOMER, software for optimization of renewable based hybrid systems, has been used to find out the best technically viable renewable based energy efficient system for 100 households and 10 shops. Sensitivity analysis is also done to see the impact of solar insolation, PV investment cost, wind speed and diesel fuel price on the optimum result. This system can reduce CO2 emission by about14 tons per year compared to diesel generator only.

Keywords

• Diesel generator; HOMER; Hybrid System; Solar; Wind Turbine.

Kaynakça

1. Biodiversity and Eco tourism project of St Martin’s, Bangladesh, http://www.stmartinsbd.org http://www.voanews.com/bangla/2005-01-16-voa3.cfm
2. Electricity demand survey report at the St. Martin’s Island, SRE, LGED, Dhaka, Bangladesh, May-2004
3. A Hossain, IIFC report “Remote Area Power Supply Systems (RAPSS)”, 2001
4. HOMER, V – 2.14, National Renewable Energy Laboratory (NREL), USA, http://www.nrel.gov/homer NASA surface meteorology and solar energy, released 1, http://eosweb.larc.nasa.gov High Resolution Solar Radiation Assessment for Bangladesh, SWERA project, http://swera.unep.net S Islam, Tidal data at the St. Martin’s Island, BUET, Bangladesh, 2004
5. Graham VA, Hollands KGT, A method to generate synthetic hourly solar radiation globally, Solar Energy, (6), 333-341, 1990
6. Shaahid SM, El-Amin, Techno economic evaluation of off-grid hybrid photovoltaic –diesel-battery power systems for rural electrification in Saudi Arabia- a way forward for sustainable development. Renew Sustain Energy Rev 2009; 13: 625-33.
7. GM Shafiullah, Amanullah M.T, “Economic analysis of hybrid renewable model for subtropical climate” Int. J of Thermal and Environmental Engineering 2010; 1: 57-65.
8. NASA surface meteorology and solar energy, released 5.1, http://eosweb.larc.nasa.gov. Demiroren A, Yilmaz u, ‘Analysis of change in electric energy cost with using renewable energy sources in Gokceada, Turkey: an island example”. Renew Sustain Energy Rev 2010; 14: 323-33.

9. Nandi SK, Ghosh HR, “A wind-PV-battery hybrid power system at Sitakunda Bangladesh” Energy Policy ; 37: 3659-64.
10. Nguyen KQ, “Long term optimization of energy supply and demand in Vietnam with special reference to the potential of renewable energy” Germany: University of Oldenburg; 2005.
11. M. Shamim Kaiser, S K Khadem, “Energy efficient system for St Martin’s island of Bangladesh”, in Proceedings of the Journal of Engineering and Applied Sciences, vol. 1, pp. 93-97, 2006.
12. AlamHossainMondal, Manfred Denich, “Hybrid systems Bangladesh”. Energy for Sustainable Development 2010; :48-55. power generation in