Disease Resilient and Energy-Efficient Centralized Air-Conditioning Systems

How can innovative technologies be utilized to achieve disease-resilient and energy-efficient centralized air-conditioning systems in public buildings


The transmission of viruses, such as the coronavirus causing COVID-19, can be prompted by centralized air-conditioning systems. In developing countries, the risks of virus transmission are higher because of issues of poor hygiene, the use of old air-conditioning equipment, lack of regular maintenance, and overcrowding in closed spaces.

Inefficient centralized air-conditioning (CAC) systems in many Asian and Pacific countries account for up to 50% of energy consumption in public buildings.  These systems rely heavily on hydrofluorocarbons (HFCs), a greenhouse gas potentially thousands of times more potent than carbon dioxide. 


The Asian Development Bank (ADB) is promoting disease resilient clean energy development in developing member countries (DMCs) of ADB. Through support from the High-Level Technology Fund (HLTF) and the Clean Energy Fund (CEF) under the Clean Energy Financing Partnership Facility (CEFPF), ADB aims to test and demonstrate innovative solutions that will improve energy efficiency, mitigate the risks of virus transmission, and ensure safe working conditions in public buildings by deploying efficient, clean, and smart CAC systems.


Can you help ADB find and implement these solutions?


 With this Technology Innovation Challenge, ADB is asking innovators (start ups, academe, independent researchers, technology providers, and other public and private sector entities) around the world to tackle the following problem statement: 



How can innovative technologies be utilized to develop disease resilient and energy-efficient centralized air-conditioning systems in public buildings?



 Does the solution increase the energy efficiency of CAC systems?


Can the solution mitigate the climate impacts of CAC systems?


Can the solution improve the disease resilience of CAC systems?


Does the solution make use of smart digital information control systems?


Up to USD 295,000 will be awarded to the best solution!

 This international challenge aims to encourage submitters to ‘think global’ with their solutions with the objective of pilot testing and scaling your solution in 3 public buildings in one of ADB's developing member countries (DMCs) in Asia and the Pacific.

IMPORTANT: You must co-finance at least 10% of the total cost of the project from your own resources, which may include funding provided by other organizations. 


  • Expression
    of Interest

    March 26 to June 11, 2021

    Register and submit your Expression of Interest presentation.

  • Selection of  

    June 12 to 25, 2021

    Up to 5 Solutions will be shortlisted.

  • Technical 
    Proposal Submission

    June 26 to July 25, 2021

    Prepare and submit your Detailed Technical Proposal.

  • Technical Proposal Review  

    July 26 to August 20, 2021

    Detailed Technical Proposal will be reviewed by panelists.

  • Final

    August 23 to 27, 2021

    Finalists to pitch to the panelists.