The world is urbanising: by 2050 more than two-thirds of the global population will live in cities. In Delhi, the race to build homes for a rapidly growing population has left sustainability by the wayside. Buildings are the main source of carbon emissions in the city, which now consumes more electricity than all other major Indian cities combined. Delhi needs greener energy, products and services for the inabitants’ homes and workplaces. → Dive deeper into stories about Delhi here
Out of the total 452 submissions to the Challenge, some 60 projects were specifically aimed at solutions for Delhi. After a rigorous selection process, 3 projects were nominated for the Student Track, 2 projects for the Professional Track and 7 projects for the Startup Track.
01. PRAANAM – FOR YOUR HOME
SUBMITTED BY PRIYANKA RAI | NOMINEE STUDENT TRACK
Praanam is a modular and portable window attachment which cools incoming air by around 4 degrees celsius, while at the same time purifying it of certain pollutants. The former is achieved through the venturi effect, while the latter is achieved by using wooden charcoal which absorbs PM2.5 and PM10 particles as air passes through. → go to project page
02. KYL
SUBMITTED BY AILEEN OOI | NOMINEE STUDENT TRACK
KYL is a front attachment for standing fans, which will lower the room temperature using Bernoulli’s principle, decreasing the need for air conditioners. → go to project page
03. PLUG-IN INFRA
SUBMITTED BY NADIR BONACCORSO | NOMINEE STUDENT TRACK
The PLUG-IN INFRA kit is an easy to install system which allows better temperature and air quality in buildings through the use of a solar chimney and a radiant barrier. → go to project page
04. VEGETABLE GARDEN ON ROOFTOP
SUBMITTED BY AMIT NEEMA | NOMINEE STARTUP TRACK
A system for developing both horizontal and vertical rooftop gardens, using growing bags, and using a drip irrigation system. → go to project page
05. GREEN SCREEN
SUBMITTED BY GINA CIANCONE | NOMINEE STARTUP TRACK
Green Screen is a passive air cooling panel for the slums of Delhi, India that is made entirely from agricultural waste. Priced at 1% the cost of a conventional air conditioner, Green Screen is an affordable and efficient product, which works through air compression and evaporative cooling. → go to project page
NATURE’S COOLING RECIPE
SUBMITTED BY MONISH SIRIPURAPU | NOMINEE STARTUP TRACK
Why should we cool the entire room if our system is smart enough to cool only the air around us? Our product is a first-of-its-kind, inexpensive alternative to energy intensive air conditioners. Our indoor solution, Ether, is both beautiful and highly efficient, designed to manage the microclimate of the user. → go to project page
06. GRID INTERACTIVE WATER HEATER
SUBMITTED BY FOREST FRIZZELL | NOMINEE STARTUP TRACK
There are over 600 million electric water heaters throughout the world. Our initiative retrofits these heaters with real-time controls so that they can act like batteries to store energy, becoming scalable, efficient, and virtually maintenance-free demand response assets. → go to project page
07. CARBON-NEGATIVE BIO-BASED BUILDING MATERIALS
SUBMITTED BY TARUN JAMI | NOMINEE STARTUP TRACK
We propose to collect agricultural wastes such as wheat straw and stalks of other cultivated crops, and mix them with locally available lime and industrial wastes such as fly ash, clays, silica fumes, etc. to convert into meaningful building materials with adequate strength and durability.
08. CYCLE TO SAVE ENERGY
SUBMITTED BY EISHAN JAIN | NOMINEE PROFESSIONAL TRACK
A cooling system which combines a bicycle which is equipped with a pedal-powered water pump, and a traditional Indian chick blind (a retractable hand-woven blind).
09. BEEHIVE: BIOMIMETIC COOLER AND AIR PURIFIER
SUBMITTED BY MONISH SIRIPURAPU | NOMINEE STARTUP TRACK
Beehive is a modular design which generates active-direct evaporative cooling. Using traditional earthenware pots, the system is zero-plastic and zero-emission, and potentially helps to cool down outdoor working conditions in the city.
10. SHADING FILTERS
SUBMITTED BY CORALIE GOURGUECHON | NOMINEE PROFESSIONAL TRACK
Shading filters are low-tech, modular textile extensions for buildings that create shade from the sun while cleaning air pollutants. We aim to create a range of shading systems that could be implemented outdoor, on both public and private spaces. → go to project page
11. CAPTURING POLLUTION BEFORE IT REACHES YOUR LUNGS!
SUBMITTED BY GAUTAM GANESH | NOMINEE STARTUP TRACK
Chakr Innovation’s patented product captures Particulate Matter (PM) emissions – a major health hazard – from diesel generators. Rather than disposing of it, the captured pollution is used as a raw material for black ink and paint, which can be used for printing purposes. → go to project page