Green Building Pioneer
In March of this year, the Nav Yuwan Housing Society, located in Thane, secured a significant achievement: a certificate acknowledging its dedication to
eco-friendly solutions. This housing society, home to over 280 families, was recognized for its efforts in improving its infrastructure to conserve both energy and water. The entire initiative was part of a pilot project designed and implemented by the Aga Khan Agency for Habitat (AKAH). The success of the Nav Yuwan Housing Society is particularly noteworthy, as it has demonstrated that existing buildings can be transformed into models of sustainability. This approach is also more environmentally friendly, as retrofitting an existing building emits 50–70% less carbon than constructing a brand-new one, according to the Rocky Mountain Institute (RMI).
Electricity Bill Drop
One of the most tangible results of these upgrades was a dramatic decrease in the housing society's electricity bill. Prior to the implementation of the energy-efficient measures, the complex was spending around Rs 52,000 on electricity. Following the retrofit, the bill was slashed to just Rs 18,000, reflecting the success of the implemented strategies. The project's success earned the complex the EDGE Advanced green building certification. This certification, awarded by the International Finance Corporation (IFC), acknowledges the complex's adherence to global benchmarks for emissions reduction and energy efficiency. Karovalia, a managing committee member, confirmed the substantial reduction in the electricity bill, highlighting the project’s economic and environmental benefits.
Efficiency Gains Unveiled
The Nav Yuwan Housing Society's green building efforts resulted in a substantial improvement in resource efficiency. The complex saw savings of 41% in energy consumption, 35% in water usage, and an impressive 59% in material efficiency. Furthermore, the society managed to cut down on operational CO₂ emissions by a considerable 232.78 tCO₂/year. These results clearly illustrate the impact of the implemented changes, demonstrating that sustainable practices can lead to both environmental and financial benefits for residential buildings. The project also showcases a practical model for other societies and buildings to follow, encouraging a broader movement towards sustainable urban development.
Smart Lighting Solutions
Key to the energy-saving success was the installation of smart lighting systems throughout the building complex. Specifically, 150 motion sensor-based dim tube lights were installed in common areas such as staircases, lift lobbies, and mid-land areas. These lights are designed to remain at a dim setting when an area is unoccupied, conserving energy. They automatically switch to full brightness when they detect movement, ensuring safety and convenience for residents. These smart lighting solutions contribute significantly to reduced energy consumption and improved building efficiency, setting a benchmark for sustainable practices. The use of motion sensor lights is a simple, yet effective solution with a great impact on energy savings.
Wider Impact & Scope
The Nav Yuwan pilot project serves as a compelling example for the application of Climate Action Plan interventions in residential and institutional sectors. Prerana Langa, CEO of AKAH India, emphasizes that the project proves how low-cost interventions can lead to tangible results and improve resilience. Moreover, the project is being hailed as a blueprint that can be replicated. According to Langa, schools, commercial complexes, and other institutional buildings are also prime candidates for such energy-efficient improvements. Implementing sustainable solutions like cool roofing, natural ventilation, solar panels, and smart lighting systems not only cuts down on operational expenses but also cultivates healthier and more conducive learning environments. Langa also believes that scaling green retrofitting across cities can be a significant step in climate-proofing urban development, encouraging more sustainable urban environments.
