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By: Purna Vachhani, J. R. Pitroda, Reshma L. Patel, and Bhargav Savsani
1.PG Scholar, Construction Engineering and Management, BVM Engineering College, Vallabh Vidyanagar,
Gujarat, India
2. Professor, PG Coordinator, Civil Engineering Department, BVM Engineering College, Vallabh Vidyanagar, Gujarat, India
3. Associate Professor, Civil Engineering Department, BVM Engineering College, Vallabh Vidyanagar,
Gujarat, India
4. Proprietor, Titan Energy, Junagadh, Gujarat, India
This paper outlines an integrated energy-efficient retrofitting framework for Shyamvadi, a 10,000 sq. ft. commercial party hall in Junagadh, Gujarat, targeting IGBC Existing Building certification. The retrofit scope included the deployment of a 34.8 kW rooftop solar PV system, LED lighting upgrades, BEE 5-star-rated inverter HVAC units, envelope insulation using reflective coatings and PUF panels, and IoT-based energy monitoring. Baseline and post-retrofit performance data were analysed to quantify energy savings, financial returns, and environmental impact. Results indicate a 56.56% reduction in annual energy demand, with a net annual saving of ₹6.78 lakh and a payback period of 3.59 years. The intervention yields lifetime savings of ₹1.69 crore and offsets 76,361 kg CO₂/year, equivalent to the annual absorption of 3,636 trees. This study demonstrates the technical and economic feasibility of retrofitting legacy commercial buildings to meet IGBC benchmarks, offering a replicable model for sustainable urban infrastructure in India.
Key Words – Energy Efficiency, IGBC Certification, Retrofitting, Commercial Building, Solar PV
Citation:
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