Hong Kong’s first combined heat and power (CHP) generation project installed in a hospital was awarded the Regional Energy Project of the Year Award for the Asia-Pacific Region by the US Association of Energy Engineers (AEE). 

The award recognises innovative energy projects in the Asia-Pacific Region that has been in operation for at least 6 months and has demonstrated sustainability plus installation and operating cost savings.

Installed at the Alice Ho Miu Ling Nethersole Hospital in Tai Po, New Territories, the CHP electricity generation project was jointly developed by the Hospital Authority and the Hong Kong & China Gas Company with WSP serving as project consultant providing technical and contractual advisory services, participating the testing and commissioning acceptance tests, preparation of the standard for the overall system measurement and verification.

The project uses landfill gas from the North East New Territories (NENT) landfill as the fuel to generate electricity as well as steam and hot water for various hospital systems and facilities. The Hong Kong & China Gas Company constructed a 19 km, 400mm diameter pipeline from NENT landfill site with a 600-metre branch pipeline to supply methane the CHP plant. 

The CHP plant produces electricity and generates waste heat at a temperature of 500oC from the generator's exhaust which goes to a waste heat boiler to produce steam. Waste heat from generator cooling system is also used to heat up the hospital’s potable and non-potable hot water supply system.

Construction started in August 2015 and was completed in November 2016. 

“This was a pioneering project in Hong Kong made possible by the foresight and collaboration of the Hong Kong Hospital Authority and the Hong Kong & China Gas Company to help improve the overall energy efficiency by turning waste into energy and reduce the carbon emission of the hospital,” says Colin Chung, Project Director and Managing Director, Sustainable Development & Environment, China Region.