摘要
The ever increasing concerns over energy security due to the depletion of fossil fuel give rise to heightened interest in and greater effort towards more sustainable energy supply and utilisation.In the meantime,the climate change as a result of CO2emission from fossil fuel use is undoubtedly another key driver for renewable energy development.Unfortunately,renewable energy such as solar,hydroelectric,wind and geothermal only constitutes a very
The ever increasing concerns over energy security due to the depletion of fossil fuel give rise to heightened interest in and greater effort towards more sustainable energy supply and utilisation. In the meantime, the climate change as a result of CO2 emission from fossil fuel use is undoubtedly another key driver for renewable energy development. Unfortunately, renewable energy such as solar, hydroelec- tric, wind and geothermal only constitutes a very small proportion of the total energy supply of the world （〈5 %） to date. In addressing the challenging issues such as scale,
