The Calcutta Electric Supply Corporation House, popularly known as CESC House, in Kolkata has been awarded with the distinguished LEED v4.1 Operations + Maintenance (O+M) Platinum score by GBCI India. GBCI is an institution that promotes implementation of the LEED green building program.
“Congratulations to @rpsggroup on their regional Leadership Award! One of RPSG’s top performing buildings, CESC House, was recently re-certified under LEED v4.1 O+M in 2020, becoming India’s first Heritage Building to receive a LEED Platinum certification,” said GBCI India in a tweet recently.
The headquarters of CESC Limited, a part of the RP-Sanjiv Goenka Group (RPSG), CESC House was built in 1933. RPGS retrofitted the 80-year-old historic area, changing a full HVAC system, putting in low-flow water administration and constructing latest automation methods, including an natural waste composter to scale back waste-to-landfill and putting in 1,200 power environment friendly lights and 52 occupancy sensors, amongst different effectivity, conservation and waste discount methods. Thanks to the sensible and measurable methods and options that RPGS utilized to attain excessive efficiency in sustainable water effectivity, power effectivity, indoor environmental high quality and waste administration, CESC House was capable of obtain LEED Platinum and together with water and power financial savings they’ve additionally reported an annual discount of 966 tons of CO2. Additionally, the handy location of CESC House has enabled greater than 90% of its workers to stroll or cycle to work, serving to lower the corporate’s greenhouse fuel emissions.
The exercise was a herculean task as it involved retrofit of a heritage building keeping its aesthetics and legacy intact while introducing the changes for green building. Major renovations of the façade were not possible and changes for an eco-friendly orientation had to be done wholly through non-structural renovations. Further, arranging the 80 year old drawings and data to understand the existing site was time consuming. Considerable planning was involved in getting the green measures implemented in an existing and operational facility. The retrofits had to be done without downtime on existing premises and its operations. All the measures were done after office hours, nights or on holidays.