India's first net zero building has achieved zero net energy consumption through the use of renewable energy sources like solar panels and an innovative chilled beam air conditioning system. Ventilation and integration with nature through landscaping and a central courtyard help reduce energy usage by 40%. Sustainable materials and practices like rainwater harvesting and recycling reduce water consumption by 55%.
INDIRA PARYAVARAN BHAVAN- Case study/ Net Zero Energy Building/ Sustainable B...
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Indira paryavaran bhawan-Photo Essay on the green initiatives taken
2. India’s first net zero building
This means that this is a building with zero net energy
consumption where the total amount of energy used in the
premises on an annual basis is more or less equal to the
amount of renewable energy created on the site.
3. Adoption of energy efficient ‘chilled beam’ system of air conditioning
has resulted in reduction of energy conservation by 40%.
This is an innovative air conditioning system, where air conditioning is
done by air flow through diffusers and chilled water is circulated right up
to the diffuser points.
4. Effective ventilation by orienting the building East-West and by
optimum integration with nature by separating out different
blocks with connecting corridors and a huge central courtyard.
5. Out of total 79 trees existing on the site, only 19 were cut and
11 transplanted.
6. More than 50% area outside the building is soft with plantation and
grassing. Circulation roads and pathways soft with grass paver blocks are
used to enable ground water recharge.
7. Chilled beams are used in the building. Room temperature
maintained is 26 degree Celsius. Chilled beams with drain pans are
used to drain out water droplets due to the condensation during
monsoon.
160 TR of air conditioning load of the building is met through chilled
beam system.
8. Highest efficiency (20%) solar PV panel grid interactive system has
been installed in the building. Annual energy generation (14.3 lakh
units) is taken care of by solar PV panels
9. FALG (Fly Ash Lime Gypsum) bricks and AAC blocks are used in the
construction. Instead of clay bricks.
10. 55% reduction in overall use of water. This was achieved by using:
• Low discharge water fixtures
• Low demand plants in landscaping
• Recycling waste water for zero discharge
• Rain water harvesting