Alvin Ee
Research Fellow
Energy Studies Institute, National University of Singapore
ABOUT
Mr. Alvin Ee Wei Liang is a Research Fellow and a Program Lead with the Energy Studies Institute, National University of Singapore. He is the project lead of the Building Embodied Carbon Calculator and Mechanical and Electrical Carbon Calculator, which are modules under the Singapore Building Carbon Calculator. The SBCC have been awarded the IES Sustainability award and the ASEAN Outstanding Engineering award. He also lead the development of an embodied carbon calculator for Land Reclamation. Apart from developing localised evaluation tools, he supports the environmental impact assessment of various renewable power technologies and industry sectors.
Prior to his current appointment, he was a Research Associate with the NUS Environmental Research Institute (NERI), where he works on Life Cycle Assessment (LCA) modelling on waste-to-material technologies as well as industrial symbiosis. Alvin was a Research Engineer from the Institute of Chemical & Engineering Sciences (ICES), A*STAR, working on LCA modelling and sustainability assessment for pharmaceutical and chemical manufacturing. During his tenure at the Institute of Chemical & Engineering Sciences (ICES), A*STAR, he led the development of the CAISEN framework, integrating safety and Life Cycle Assessment (LCA), which was awarded the IChemE Safety award.
He holds a Master’s degree in Safety, Health, and Environmental Technology from the National University of Singapore and a Bachelor’s degree in Chemical Engineering from Newcastle University.
Presenter – Embodied Carbon Evaluation for Existing Building Stock
Track 1A: Beyond the Business Case | Thursday, 10 July 2025, 11:45 AM
This study presents a methodological framework and calculator for evaluating the embodied carbon of existing building stock, with a focus on buildings constructed in Singapore post-1965.
As the standard reference study period (RSP) recommended by RICS is 60 years, many buildings are approaching mid- to late-life stages, prompting the need for embodied carbon assessments to inform future redevelopment and retrofitting strategies. The calculator is designed to help developers estimate the structural embodied carbon using current emission factors (EFs), eliminating the need for detailed historical data. However, data limitations—particularly on material quantities and structural systems of older buildings—remain a key challenge. This highlights the importance of developing a supporting database to improve estimation accuracy.
By enabling rapid and reasonably accurate assessments, the tool contributes to more carbon-conscious decisions regarding existing buildings and supports national decarbonisation efforts within the built environment sector.