水电站生命周期温室气体排放研究综述

Research Overview of Life Cycle Greenhouse Gas Emissions from Hydropower Plants

随着全球水电的大力开发,水电站建设带来的环境效应日渐受到广泛关注。简要介绍了水电站温室气体排放的评估,总结了近年来国内外水电站生命周期温室气体排放的研究进展,可以看出水电站单位碳(CO2)排放的范围大致为3.7~44 g/kWh,并且随着水电站装机规模增加,温室气体排放系数呈现减小的趋势。与传统火电相比,水电温室气体排放远小于火电,大力开发水电对减少碳排放具有显著的意义。

With the vigorous development of global hydropower,the environmental effects brought by hydropower plants construction have been widely concerned.This paper briefly introduces the assessment of greenhouse gas emissions from hydropower plants,and summarizes the research progress of greenhouse gas emissions in the life cycle of hydropower plants at home and abroad in recent years.The range of unit carbon(CO2)emissions of hydropower stations is roughly from 3.7 to 44 g/kWh,and with the increase in the installed scale of hydropower plants,the GHG emission coefficient shows a trend of decrease.Compared with the traditional thermal power,the greenhouse gas emission of hydropower is far less than that of thermal power,so developing hydropower vigorously is of great significance to the reduction of carbon emissions.