Energy-efficient motors power Hong Kong ’ s sustainable development
Global motor producer WEG contributes twelve motors to state-of-the-art WTE facility
CBV , in partnership with motor and drive manufacturer WEG , has contributed to developing a self-sustaining waste to energy ( WTE ) island for Hong Kong ’ s residual waste . It is estimated the island will save 440,000 tonnes of carbon emissions per year , the equivalent of the yearly carbon emissions produced by 2.2 million gas-based cars .
In response to the Paris Agreement , the Government of Hong Kong ’ s Climate Action Plan set a target of reducing the country ’ s carbon intensity by 65 to 70 per cent , compared to 2005 , by 2030 . The country is progressing steadily in meeting this ambitious goal . In 2019 , it had already reduced its carbon emissions by 35 per cent .
The new WTE facility will represent another step in the right direction . The facility will consist of six lines supplying mainland Hong Kong with two GWh of electricity per day , thanks to a highly efficient WTE process . This is complemented by a state-of-the-art flue gas cleaning system that complies with strict emissions standards .
Waste heat , which is generated as a byproduct of working machines , will be used to dry the waste going to mechanical sorting for material recovery . Part of the heat will also be used to power the cooling system of the buildings on the island . A wastewater treatment plant will ensure that no water needs to be disposed of , while solar panels will guarantee that the power requirements of people working on the island are met .
Moreover , the facility will produce 40 m ³ 48 FDPP - www . fdpp . co . uk of desalinated water per hour , which will be used for processes , building services , and irrigation of the green spaces covering the entire island , including the facades of the WTE facility . The project will also prevent the landfilling of 1,2 million tonnes of residual waste , generated by one-third of the citizens of Hong Kong , which is unsuitable for recycling .
The WTE plant is composed of three process modules , each consisting of two incineration lines . Each line needs one induced draught ( ID ) fan and one secondary fan , both of which require motors .
The project used a total of twelve electric motors from WEG , six 1300 kW model HGF 500 motor , and six 132 kW model W22 315S / M motors . The motors will drive the ID and secondary fans supplied by CBV , which are essential components of the incineration trains .
The design-build-operate ( DBO ) contract for Phase 1 of the integrated waste management facility ( IWMF ) was awarded in November 2017 ,
and in November 2021 the motors were delivered . According to the Environmental Protection Department of the Government of Hong Kong , Phase 1 of the project is expected to be fully commissioned by 2025 , with the contract including a 15-year operation period .
“ The new WTE island will massively contribute to Hong Kong ’ s sustainability targets , but more importantly it will help reduce carbon emissions globally , taking us one step closer to the goals established by the Paris Agreement ,” explained Marek Lukaszczyk , European and Middle East marketing manager at WEG . “ Efficient and reliable electric motors are at the core of complex WTE technology , and WEG represents a natural choice for projects that require durability , efficiency and costeffectiveness . We are confident that the motors supplied will serve the island well for many years to come ,” he concluded .
For more information about WEG ’ s wide range of electric motors and to schedule a meeting with a representative from WEG , visit www . weg . net .