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How Does the Power Industry Support the National Economic and Social Sustainable Development?
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Abstract: The power industry is the basic industry of the national economy, which can promote the economic development and enhance the living standard. Meanwhile, as the key energy consumption and energy-saving field, the power industry plays an important role in supporting the national economic and social sustainable development. In recent years, the power industry experienced rapid development in China. The report introduces the active efforts and contributions made by the Chinese power industry to the national economic and social sustainable development from multiple aspects and angles with data and examples: 1) With the optimization of power generation and grid structure, promotion of advanced energy-saving technology and enhancement of management level, the technical indicators such as net coal consumption rate, auxiliary power ratio, line loss rate, etc. have been continuously improved. For example, net coal consumption rate of supply reduces from 370tce/kWh in 2005 to 330tce/kWh in 2010, while line loss rate reduces from 7.21% to 6.53%, with a decrease of about 10% during a Five-year Period. The accumulatively 300 million tce of energy conservation has realized outstanding performance; 2) The cleanly energy generators have realized great development with increasing proportion from 23.3% in 2005 to 26.2% in 2010, in which the renewable energy generators gave the main contribution. There has been accumulatively 300 million tce of fossil energy conservation during the period; 3) Desulfurization equipment has developed with very high coverage rate. Fuel gas desulfurization unit was little in 2005, and accounts for 89% of the total coal installed capacity in 2010. The effect of emission reduction is obviously that the emission of sulfur dioxide per unit of thermal power output has decreased by over 60% compared with that in 2005; 4) The national cross-regional grid has come into being, the cross-regional electric energy transmission has been greatly increased and the power grid has played a more and more important role in the resource optimization and allocation, which satisfies the demand of the imbalance between the resource location and power demand focus; 5) The Energy Service Companies (ESCo) subject to power enterprises have been gradually established, that promotes the energy-saving and power Demand-side Management (DSM), brings notable effects from energy management and load management. With the higher influence of the developing concepts such as the low carbon and environmental-friendly in the social development, Chinese economy would realize the sustainable and great-leap-forward new industrialization in future. The power industry will make active contributions through the following measures: To keep on strengthening the power structure adjustment and increasing the proportion of the renewable energy in the power generation; To focus on the upgrade of energy-saving power generation technology, and the development of large-capacity, high-efficiency and high-parameter generators; To emphasize the upgrade of the power grid energy-saving technology and the development of the Ultra High-voltage (UHV) transmission technology, expand the trans-regional network establishment, and strengthen the power generation dispatching and the transaction of generation right; To carry out the renovation of the environmental protection technology, increase the coverage rate of the desulfurization equipment and denitration equipment, and research and apply the Carbon Capture and Storage (CCS) technology; To enhance the management level of energy conservation and emission reduction, and promote the power DSM. In 2020, the proportion of the installation capacity of the renewable-energy-source generators will increase very quickly, the proportion of the single capacity of 600 MW and above in the thermal power generation unit will be over 50%, the coverage rate of the desulfurization equipment will be over 95%, and the coverage rate of the denitration equipment will be about 80%. Calculated according to the Integrated Resource Strategy Planning (IRSP) model, the potential capacity of Efficiency Power Plant (EPP) would be 200 GW, accounting for about 10% of the conventional installed capacity. In the following decade, some indicators of power industry will be the international advanced level, which will promote the national economic and social sustainable development in the aspect of the technology and management, etc.
Keywords: Power industry; Sustainable; Development; Energy conservation; Emission reduction; Technology; Management; Low carbon; Environmental-friendly