Energy Saving Charter

In Hong Kong, buildings account for about 90% of our electricity consumption, representing over 60% of greenhouse gas emissions. Launched by the Environment Bureau and the Electrical and Mechanical Services Department, the “Energy Saving Charter” encourages the participating organizations to maintain an average indoor temperature between 24-26°C during the months of June to September.


PolyU has signed the Energy Saving Charter in 2021

PolyU has supported this Energy Saving Charter since 2013. Energy conservation has long been a commitment and being a key indicator in the context of PolyU campus sustainability. Thus, keeping the indoor air-conditioning temperature within an efficient range could assist in reducing greenhouse gas emissions and promote energy conservation on campus. 

This year, PolyU has pledged to support the Energy Saving Charter 2021 with the scope for all offices:

  • to maintain indoor temperature at 24 - 26 °C during the summer (June to September in 2021);
  • to switch off appliances and systems when not in use;
  • to procure energy efficient products and systems (such as Grade 1 energy labels); and
  • to engage staff/ students/ tenants to adopt the above practices together.


Energy Saving Charter 2021


You can find more information about the Charter from the dedicated website at