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Carbon Footprint study of a Health care campus, Navi Mumbai (India)

A Carbon footprint analysis of proposed buildings at a healthcare center was conducted by us (Essential India). The analysis used the "Cradle to Grave" approach, which includes the following stages:-

a) A1 to A3 (Product Stage)

b) A4 to A5 (Construction Process Stage)

c) B1 to B5 (Use Stage, B6 – Operational Energy Use & B7 – Operational Water Use)

d) C1 to C4 (End of Life Stage).

Using the One Click LCA tool, the carbon footprint analysis was carried out for the baseline building and proposed building. The embodied carbon in the baseline case building was found to be 66,704 tCO2e and in the proposed case building was 57307 tCO2e. The proposed case had 14.08% (9397 tCO2e) fewer carbon emissions compared to the baseline case. This reduction was mainly due to the use of concrete with 30% fly ash content, and steel with 15% recycled content in the proposed buildings. The project also aimed to purchase steel, block work, and glazing materials within 400 km and ready-mix concrete within 50 km. As per the study, the carbon emission intensity in the base case building is 554 kgCO2e/m2. Whereas in the proposed case, the carbon emission intensity is 474 kg CO2e/m2. As per the comparison with the global embodied carbon benchmark, the base case building falls in ‘D grade’ whereas the proposed building falls under ‘C grade’. The below chart shows embodied carbon intensity for the base building and proposed building along with the global benchmark value.

In both cases, all six impact categories were analyzed. All impact categories show a reduction in the proposed building compared to the baseline building. The below graph shows the impact categories and percentage reduction.

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