Cooling is one of the fastest growing uses of electricity worldwide. As more people install fans and air conditioners to cope with longer, hotter seasons, we lock in higher energy use, bigger bills and more strain on already stressed grids.
Talking about sustainable cooling is really about one question: how do we stay comfortable without making heat, costs and outages worse in the long run.
India is one of the places where this tension is most visible and where ideas from different parts of the world are being adapted and tested in real homes and business districts.
Here are five sustainable cooling trends taking shape in India and what they look like on the ground in 2026:
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Roofs are becoming India’s new heat shield
Hot tin and concrete roofs act like giant radiators, so more planners are treating the roof as the first place to fight indoor heat instead of jumping straight to air conditioners.
Light coloured, reflective “cool roofs” bounce a larger share of the sun’s rays and emit absorbed heat back out, which cuts heat flowing into rooms and can lower indoor temperatures in simple dwellings.
Telangana’s Cool Roof Policy from 2023 to 2028 takes this mainstream by targeting about 300 square kilometres of cool roofs by 2028, most of it in Hyderabad, as part of its heat resilience strategy.
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Public spaces are turning into small cooling pockets
Heat planning is starting to show up in the places people actually stand and wait, like bus stops, instead of only in advisories and weather alerts.
Simple combinations of shade, reflective surfaces and evaporative cooling from wet mats or misting systems reduce direct sun, radiant heat and air temperature in those tiny zones, which makes a noticeable difference during peak heat.
In Ahmedabad, a central bus stop now uses straw mats and roof sprinklers to chill the hot wind and spray a light mist on commuters, a pilot created under the city’s heat action work after the 2010 heatwave.
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AC labels are quietly doing more of the talking
Choosing an air conditioner is slowly shifting from “pick a brand and a tonnage” to “see what this machine will really consume over time.”
Because you cannot see efficiency by looking at the box, regulators are pushing labels to show clearer annual energy use and to add verification tools so the efficient choice becomes obvious at the shop itself.
New Appliance Labelling Regulations from the Bureau of Energy Efficiency will bring in more detailed labels for ACs and refrigerators, including extra data and QR codes that let you scan and check star rating claims on the spot.
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The person who services your AC is now part of the climate story
Policy makers increasingly see the AC technician not just as a repair person, but as someone who can make or break the climate impact of cooling.
Many common refrigerants have very high global warming potential, so better installation, leak checks and handling of newer low impact gases can significantly cut emissions across millions of units.
India’s Cooling Action Plan and follow up reviews set targets to train and certify about 100,000 servicing technicians and to reduce refrigerant demand by roughly 25-30% by 2037 to 2038, treating skills as a core climate lever.
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New business districts are plugging into shared cooling
Some new financial hubs are starting to treat cooling like roads or water, something you build once and share, instead of every tower running its own giant chiller.
District cooling plants use large high efficiency chillers and diversity across many buildings, so they can meet the same comfort need with significantly less electricity and less waste heat on the street.
GIFT City in Gujarat is India’s first major example, where the district cooling system supplies multiple buildings from a central plant and is described as using about 30% less energy than traditional building by building air conditioning.
Why These Trends Matter
For India, and for many other hot countries watching their cooling demand climb, these trends are also a reality check. If we ignore them, heat, bills and grid stress rise together. If we lean into them, thermal comfort becomes something that can be planned for, instead of something only a few can buy their way into.
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