A zero carbon building is a building with zero net energy consumption or zero net carbon emissions on an annual basis. In recent years, low/zero carbon buildings have attracted much attention in many countries because they are considered as an important strategy to achieve energy conservation and reduce greenhouse gases emissions. Some examples of the other existing zero carbon buildings in the world include:
The ZCB in Hong Kong generates on-site renewable energy from photovoltaic panels and a tri-generation system using biofuel made of waste cooking oil and achieves zero net carbon emissions on an annual basis. Beyond the common definition of a ‘zero carbon building’, ZCB exports surplus energy to offset embodied carbon of its construction process and major structural materials.