Efforts to achieve sustainability goals for the public sector are getting a boost with the switch to chillers with lower greenhouse gas emissions, something done at HTA two years ago. HTA installed two low global warming potential (low-GWP) chillers for air-conditioning in Mar 2019. It also installed a more energy-efficient chiller of a smaller capacity. There were no low-GWP chillers of that capacity in the market at that time, said an HTA spokesman. The three new chillers together brought about annual energy savings of about 1.5 million kWH, equivalent to the annual electricity consumption of nearly 350 four-room HDB flats and provided cost savings of about $300,000 a year, Mr Zulfadhli Fahim Suratman, HTA’s building and infrastructure specialist from HTX Home, said. The installation of the three chillers at HTA cost about $3 million, while the previous chillers at HTA, installed in 2005, had cost about $6 million. The switch is part of a larger plan to reach the nation’s long-term goal of net zero emissions as soon as possible. MND will replace three chiller units by the end of this year, while TP will replace five.... Continue Reading