Kai Tak District Cooling System: District Energy Network

Design-Build-Operate of a District Cooling System for a 320 Hectares Mixed-used Development
Using seawater as heat rejection for higher plant efficiency

Up to 85 million kWh

of energy savings per year

2 District Cooling System plants 

and 1 seawater plant

1.7 million m2

of cooling area

The Challenge

The Kai Tak Development is a large, highly complex project spanning a total planning area of over 320 hectares. This area covers the ex-airport site together with the adjoining hinterland districts of Kowloon City, Wong Tai Sin and Kwun Tong, which comprises of a mixed development of offices, shops, hotels and schools, as well as a new regional cruise terminal.


Veolia's Innovative Solution

Seawater as heat rejection in a District Cooling System

The use of seawater as heat rejection can bring about higher plant efficiency and eliminate the risk of legionnaire disease. With technological innovations, Veolia's design is 10% less expensive than the tender reference design. Coupled with Veolia's best practice in O&M, an estimate of 30% lower life cycle cost can be saved,  which amounts to 85 million kWh of energy savings per year, equivalent to a reduction of 59,500 tonnes of carbon dioxide emission per annum.


Benefits for our client

  • Enhance environmental image
  • Enhance real-estate net space and urban landscape
  • Fast track construction by optimized design
  • Guarantee optimal comfort level and customer satisfaction
  • Ensure compliance with environmental and health & safety standards
  • Provide quality services to increase efficiency in operation and maintenance
  • Ensure the profitability of the system
  • Guarantee safety and continuity of operations

Our  Solutions in Energy, Water and Waste



Veolia is uniquely positioned to service industry, government and commercial entities in improving performance, managing water, waste and energy.

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