Power of efficiency : international comparisons of energy efficiency and CO2 emissions of fossil-based power generation

摘要: The thesis looks at developments in capacity, energy efficiency and CO2 emissions of fossil power generation. Fossil fuel combustion for generation is responsible 27% total greenhouse gas emitted globally 2005. It estimated that by implementing best available technology thereby improving efficiency, could be reduced 29%. This if all plants would replaced remain the same. With continuing trends however, from grow 95% 2030. Energy improvement alone therefore not sufficient to compensate growth generation, case current trend continues. confirmed a study EU. Despite climate targets, large amount new capacity has been built planned. By placing efficient production gas-fired EU increased 34% 1990 50% For 2015, further rise 54% expected. coal-fired 38% 2005 expected increase 40% 2015. these improvements, it 2020 will have 10% compared 2005, due an fossil-fired electricity also shown portion suitable capture technology. can applied only 15-30% 2030 makes difficult achieve emission objectives. limited ability but long lifetime plants, which reduces opportunity renewable energy. Renewable one main options reduction addition savings. shows important role savings should play. Global consumption business as usual scenario grows 17 PWh 47 2050. In where technical measures demand sectors are implemented, 22 PWh. 53% comparison reference 2050, still nearly 30% level. Due potential different reduce emissions, follows menu needed cut including CCS