This is a template to make ecologically sound buildings which have a minimum negative impact on the environment. The aim is to maximise comfort for the occupants while minimising or eliminating environmental damage.

1. Green Buildings
By Nupur Nishant
(Team : Green Psychopath)

2. What is the ‘currency’
which makes my house
more eco-friendly than
yours?

3. It’s not money. It’s not
even material.
It’s ENERGY!

4. Embodied
Energy
And not just electricity bill!
How much energy was
used for
● Construction?
● Preparation of those materials?
● Procurement of those materials?
● Water?
● Transportation?

5. About the house
1. Residential: for a nuclear
family.
2. Tropical climate, like
Chandigarh.
3. Two-storeys
4. Attempt to maximise
comfort with minimum
environmental cost.

6. Fundamentals

7. Step 1:
Deconstruction
of old house.

8. Next of course, comes
the foundation.
High fly ash concrete:
Embodied energy
decreases by 25%.

9. Rainwater
harvesting
system must be
installed.

10. Now, before we go any
further……..
Which is the greenest building
material?

12. P

14. Let’s go with concrete.
Good for us, concrete
can be recycled.
We can recycle concrete from deconstructed building and
more.

15. Now, we’ll add HVAC.

16. Heating, Ventilation
and Air Conditioning

17. Now, coming to
Haryana and Punjab
we have a horrible
problem here.

21. Solution:

22. Insulation
If any more is needed, we have still eco-
friendly option.
Sprayfoam(typically used material for
insulation) is very high in embodied
energy.
So, we use...

23. Blue
Jeans
FoamRecycled pants.

24. Cellulose
foamRecycled paper

25. Next step:
But not exactly this.

26. Eco Rock
This will take care of
plastering in a much
more eco-friendly
manner.

28. Plumbing
and Grey
water
recycling.

30. These will not release VOCs.
So, better for our health, too.
.
Of course the paints we choose will be eco-
friendly.

31. My idea

33. Does anyone know the
problem with Solar
cells?

34. They’re inefficient.
The average efficiency being 15-18% and
highest only 23%.

35. That is not to say we won’t
add solar cells. We will. To
cut on our electricity bills.

36. I thought : we don’t really
need electricity from light to
convert into light. Energy is
lost in this conversion
process.

37. We don’t even need to
convert light to
electricity in many
cases. Look around.

39. Is it not possible to light
your room entirely by
sunlight in the day?
Can’t we make it more
efficient?

40. About my
demonstration……..

41. My presentation was minimalist but we’re going to need a
clever combination of mirrors and lenses.

42. We all have seen signs, maybe made some in school. But reality is less than
satisfactory.

43. Solution:
PIR sensor.

44. This
gives us.

45. CALCULATIONS
The real engineering begins.

46. Water saved per person per day
by greywater treatment: 70l
Water saved per year by a
household of 200m^2 area by
rainwater harvesting: 8,00,000l
Average water consumption in
India per day: 135l

47. So, the household in
question uses 1,97,100
litres of water per year.
Water saved: 9,02,200
litres

48. We saved 4.58 times
more water than we
used.
For a city like Chandigarh (consumption per person per
day=252l) this becomes 2.45 times.

49. Assuming that my
insulation keeps my room
at least 5-7`C
warmer/cooler, that saves
30-42% HVAC energy.

50. For 1m^3 concrete, 80 kg
coal was burnt. That’s
576.5 kWh energy.

51. This
merely
has to be
crushed
and
graded.

52. In my modal, we’re using
recycled concrete. The
energy it takes recycle
concrete is nothing
compared to what it takes
to make it.

53. Crushing takes
0.000875kWh for 1
m^3 concrete.
That is 658857 times
more energy saved than
used.

54. Since we’re using PIR
sensor and natural lighting,
electricity usage will decline
by around 50%. Of course
we’ll use LEDs.

55. But there is a catch.

56. 16-20 solar panels can
even cover 100% of
electricity needs. And we
have at least 800 square
metres land.

57. Net energy usage down by
100%.

58. We are also decreasing
energy usage by 80% and
net emission by 85% by
using eco-rock.

59. Sources: Catherine Mohr, Kevin Surace, 301
Monroe.com,TED

60. Conclusion
I have not designed one building. I have designed a framework for making eco-
friendly buildings. This framework can be used in most buildings, and as I just
finished showing you, I was pleasantly surprised at how we can save so much
energy in relatively simple ways. I hope we can endeavour to make green building a
common place practice rather than a fancy design of house for a few people.
As you have seen, green building can also save a lot of money.
Let’s make it a reality.