Since 2007, DSD has joined the Inter-departmental Working Group on Climate Change set up by the Environment Bureau for formulating polices and measures in adapting climate change to reduce greenhouse gas emissions and combat climate change. In support of “Hong Kong’s Climate Action Plan 2030+” (Action Plan) published by the Government in 2017 that encourages extensive use of renewable energy, DSD has actively implemented energy-saving initiatives and adopted solar power, hydropower and biogas to generate energy (Please refer to Chapter 1 Energy Saving and Emission Reduction Promoting Sustainable Development in Hong Kong for details).

In 2018-19, we continued to optimise the operation of our sewage treatment works and sewage pumping stations, as well as replace aging equipment with more energy efficient ones to save energy. Concurrently, we promoted wider use of renewable energy. The measures taken include:

• Replacing conventional lighting with light emitting diode (LED) type
• Optimising operation procedures and replacing equipment with more energy efficient ones at sewage treatment works and sewage pumping stations
• Installing photovoltaic solar panels
• Installing tri-generation system (electricity, heat and cooling)
• Installing hydro-turbine system

During the year, the above measures saved a total of about 0.91 million kilowatt-hours of electricity (equivalent to carbon reduction of about 637 tonnes¹).

Carbon Audit