Sectoral Analysis for Public Electricity Generation
Power sector had been a major contributor to SO2, NOx and RSP emissions. Subsequent to the imposition of statutory emission caps on power plants, its SO2 emissions reduced substantially by 87%; NOx emissions by 53% and RSP emissions by 78% from 1997 to 2015, despite an increase of electricity consumption of 36%. In 2015, the emissions of SO2, NOx and RSP accounted for 37%, 28% and 11% of the total emissions, respectively.
The emissions of SO2, NOx and RSP from power sector showed decreasing trends from 2010 to 2015, which was due to increased use of natural gas in power generation, in order to meet the emission caps set out in the Second Technical Memorandum (TM).
The EPD has progressively tightened the emission caps since 2005. In 2008, we stipulated the stringent emission caps for 2010 and beyond through the first TM for power plants. The fifth TM was issued in 2015 to further tighten the emissions of air pollutants from 2020 onwards. By 2020, the emission caps of SO2, NOx and RSP would be reduced by 69%, 50% and 54% respectively, as compared to the emission caps for 2010.