Global analysis of the techno-economic potential of renewable energy hybrid systems on small islands

摘要: Abstract Globally, small islands below 100,000 inhabitants represent a large number of diesel based mini-grids. With volatile fossil fuel costs which are most likely to increase in the long-run and competitive renewable energy technologies introduction such sustainable power generation system seems viable environmental friendly option. Nevertheless implementation energies on is quite low high transaction missing knowledge according market potential. Our work provides global overview island landscape showing respective population, economic activity, demand, for almost 1800 with approximately 20 million currently supplied by 15 GW plants. Based these parameters detailed techno-economic assessment potential integration solar PV, wind power, battery storage into supply was performed each island. The focus set due lack data hydro geothermal study. It revealed that 7.5 GW photovoltaic 14 GW could be economically installed operated reducing GHG-emissions consumption 50%. In total numbers more than tons GHG emissions can reduced avoiding burning 7.8 billion liters per year. Cost savings around 9 USDct/kWh occur average implementing capacities combined 5.8 GWh storage. This evaluation enables policy makers investors facilitate clean systems islands. To accelerate this enormous we give specific recommendations as proper regulations.