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Technical and Economic Feasibility of Using Hydrogen as Energy Storage System in Wind Farms

材料科学与工程（中英文版） 2010年第3期4卷 17-21页

作者： orlando lastres danguillecourt Geovanni Hemandez Galvez Alrel Nunez Rodnguez Jose Rafael Dorrego Portela Jose Alberto Saldafia Juarez Miriam Guadalupe Peralta Morales Instituto de Estudios de la Energia Universidad del ISTMO Oaxaca 70760 Mexico Centro de Investigacion en Energia UNAM. Temixco Morelos 62580 Mdxico

In this paper some of the results obtained in the research project "A Technical and Economic feasibility study of hydrogen production from solar and wind energy in the Istmo de Tehuantepec" are presented. The purpose of this study is to assess the viability of electrolytic hydrogen production in wind farms in the Istmo de Tehuantepec. Different configurations of hydrogen storage systems were simulated in local weather conditions and using local power grids. WAsP 9.1 (under license obtained by the Universidad del Istmo) and HOMER were used in this study. Using WAsP it was estimated that the annual energy produced by five BONUS 1MW/54 turbines is 18.70 GWh/year with an average capacity factor of 42.7%; efficient operation is projected for a wind farm with greater capacity. The HOMER simulation of a 500 MW wind farm in a 225 MW power grid, showed that 42% of the energy generated by the turbines is not integrated into the power grid and consequently it is used for electrolytic hydrogen production, with an annual production of 15,522 Ton at a cost of 11.60 USD/kg, for capital multipliers of 1 and 1.6 for the electrolyzer and the wind turbine respectively. It was established that by lowering the capital costs of both the electrolyzer and the wind turbine, it is possible to produce hydrogen at a cost of between 5.70 and 6.40 USD/kg, which is comparable to the current costs of conventional methods of hydrogen production. Favorable results were also obtained when a fuel cell was added to the system to introduce energy into the power grid at peak times, even when the selling price to the grid is less than 0.30 USD/kWh. In conclusion, given the current trend of rising fossil fuel prices as well as the existing and prospective technological advances in the production and storage of hydrogen, the electrolytic production of this fuel is feasible under the conditions found in the Istmo de Tehuantepec.

关键词：经济可行性存储系统风场能源技术氢

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