Sản phẩm cổ phiếu trong việc cung cấp năng lượng tái tạo thế giới, năm 2005: Năng lượng tái tạo chất dễ cháy và chất thải: 78,6% (bao gồm sinh khối chất lỏng: 1,6%, chất thải tái tạo, thành phố trực thuộc Trung ương: 0,7%, sinh khối / than rắn: 75,6%, khí đốt từ sinh khối: 0,9%); Gió: 0,6%, thủy điện: 17,4%, năng lượng mặt trời / thủy triều: 0,3%. | 8 Green Energy Technology Economics and Policy Note Figures refer to CO2 concentrations by volume ppm CO2 . Figure . CO2 concentration profiles for the Baseline ACT and BLUE Map scenarios Source ETP 2008 p. 51 OECD-IEA c 20000 18000 I 16000 14000 12 000 10 000 at 8000 6000 I 4000 s 2000 0 Other Tidal Geothermal Biomass waste Solar CSP Solar PV Wind Hydro 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 Figure Growth of renewable power generation in the BLUE Map scenario 2000-2050 Product shares in the world renewable energy supply 2005 Renewables combustibles and waste comprising liquid biomass renewable municipal waste solid biomass charcoal gas from biomass Wind hydro solar tide geothermal . The contribution of renewables to electricity generation increases from 18 in 2005 to 35 in 2050 in the ACT Map scenario and 46 in the BLUE Map scenario. In the BLUE Map scenario electricity generation from renewables wind photovoltaics and marine is projected to rise to about 3 500 GW by 2050. Up to 2020 bulk of renewable energy production will come from biomass and wind. After 2020 solar power production will become significant. Hydro will grow continuously up to 2050 but this growth will achieve a plateau around 2030 to 2050 because of the constraints of finding suitable sites. The contribution of hydro wind and solar will be roughly equivalent in 2050. About two-thirds of solar power will be provided by solar PV with the balance one-third coming from Concentrating Solar Power CSP . As the capacity factor of CSP is higher than PV CSP may account for 40 of the solar power generation. Renewables and climate change 9 The intermittency of solar power is not a problem as its peak coincides with the demand for air-conditioning. Electricity storage capacity is sought to be increased from 100 GW today to 500 GW by 2050 in the form of pumped hydro storage underground compressed air energy etc. to cover the variability in the .
