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India's Cooling Crisis: Rethinking Home Design for a Sustainable Future
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Firstpost•02-10-2026, 21:55
India's Cooling Crisis: Rethinking Home Design for a Sustainable Future
- •Traditional Indian homes used passive cooling techniques like courtyards, verandahs, and thick walls to stay cool without AC.
- •Modern Indian homes often lack these features, leading to a surge in cooling demand and increased reliance on air conditioning.
- •India's peak power demand for cooling is projected to reach 140 GW by 2030, highlighting the urgent need for sustainable design.
- •Architects advocate for building designs that prioritize heat prevention through orientation, shading, and ventilation to reduce AC usage.
- •Implementing passive cooling strategies in new constructions can significantly lower energy consumption and mitigate the strain on India's power grid.
Key Questions Answered
Air-conditioning ownership in India remains below 20 per cent of households, whereas in the US, AC units are present in 90 per cent of households.
Shading and daylight optimisation alone can lower indoor temperatures by approximately 2-5°C.
Architects emphasize four primary areas for passive cooling: building orientation, effective shading, promoting natural ventilation, and optimizing the building envelope.
