INGENIEUR
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Green Engineering
By Pang Soo Mooi
Malaysia initiative on Green Engineering
The recent Malaysian Government announcement on its aim to increase green energy or Renewable Energy ( RE ) generation to 18,000 megawatts ( MW ) by 2035 compared to 8,700MW currently is one big step forward in promoting green energy in the country . The one-fold increase would make RE contribute 40 % to the country ’ s energy supply in 2035 . This initiative will be supplemented with the programme setting a target of 31 % renewable energy contribution by 2025 through various green energy generation initiatives , including the Large Scale Solar ( LSS ) project . Besides achieving the sustainability goal by optimising usage of raw material resources , it reduces carbon emissions to the environment .
Toronto is home to the world ’ s largest lake-powered cooling system . – Tik Root
In Toronto , Canada , Deep Lake Water Cooling ( DLWC ) is used to cool over 100 buildings in the city . It saves enough electricity to power a town of 25,000 and is so popular that the city is pursuing expansion .
Toronto is home to the World ’ s largest deep lake water cooling system .
Conceptually , the technology is relatively simple . Instead of relying on energy-intensive compressors and chillers to dissipate heat from buildings , DLWC uses water from nearby Lake Ontario to whisk away the warmth .
The system launched in 2004 with only a handful of customers in the city , but now cools over 100 downtown buildings , ranging from City Hall and Toronto Hospital to hotels and even a brewery .
Enwave , the company that owns and operates Toronto ’ s DLWC , says the system already saves 90,000 megawatt hours of electricity use annually - roughly enough to power a town of 25,000 . It is so popular that the city has nearly reached capacity and recently committed to an extension .
Toronto ’ s cooling process begins about 3.5 miles south of the city and 280 feet underwater , in the depths of Lake Ontario where the water remains cool all year round . The water is first drawn into the city through three massive pipes , spaced about half a mile apart .
Once the lake water makes it to the city , the DLWC system operates via a series of water loops . There is a loop that moves the lake water ; a loop that moves water within the downtown area ; and loops in each building the system serves . The water moves itself through these pipes using relatively little energy .
ASEAN ’ s Road to Green Economies – Monika Merdekwati
ASEAN Member States ( AMS ) have taken various policy measures in response to Covid-19 . There has been a cohesive approach as a region , reflected in the AMS Chairman ’ s Statement of the 36 th ASEAN Summit on June 26 , 2020 .
The statement reaffirms the commitment made at the Special ASEAN Summit and Special ASEAN Plus Three Summit ( China , Japan , and South Korea ) on April 14 , 2020 by establishing the Covid-19 ASEAN Response Fund . It further focuses on the improvement of regional connectivity through the implementation of the Master Plan on ASEAN Connectivity ( MPAC ) 2025 , which aims to boost the regional trade network , supply chain efficiency , human capital , and people mobility .
In the energy sector , the ASEAN Plan of Action for Energy Co-operation ( APAEC ) recognised the need for a clean energy transition and have set an aspirational renewable target of 23 %.
48 VOL 91 JULY-SEPTEMBER 2022