Emergy Analysis Based Method for Site Selection of Photovoltaic Plants
Following the guideline of the reasonable planning and sustainable development of photovoltaic(PV)power plants,an emergy analysis based method is proposed for the site selection and eco-economic benefit assessment of PV power plants.Through the combination of emergy analysis and geographic information system(GIS)spatial analysis,the eco-economic benefits of land available for PV generation in 12 league cities of Inner Mongolia China are analyzed.The result shows that:Hohhot,Baotou and other densely populated areas in central and western Inner Mongolia show more excellent development value.Through comparison,it is found that the transmission loss caused by transmission distance accounts for a decisive proportion of all emergy inputs.In addition,for most of available land plots,the eco-economic benefits are relatively higher when they are close to urban towns or built environment.In the process of structural transformation of energy,the occupation of PV land and the expanding demand for urban construction land may become the primary imbalance between urban planning and PV energy planning in the future.
photovoltaic site selectioneco-economic benefitemergy analysisInner Mongolia area