The document describes the Indira Paryavaran Bhawan building project in New Delhi, which was constructed as a net zero energy green building for the Ministry of Environment and Forests. Some key details include: - The building was designed to reduce energy usage by 40% and achieve net zero electricity and water usage. - Sustainable design features included a large solar power system, geothermal heating/cooling, and rainwater harvesting. - Materials like fly ash bricks, AAC blocks, and local stone helped minimize environmental impact during construction.

1. INDIRA PARYAVARAN BHAWAN
Jor Bagh , New Delhi
BY: MOHIT PANCHAL & RIYA MAJOKA

2. INTRODUCTION:
• THIS IS A PROJECT OF MINISTRY OF
ENVIRONMENT AND FORESTS FOR
CONSTRUCTION OF NEW OFFICE
BUILDING AT NEW DELHI.
• THE BASIC DESIGN CONCEPT OF
THE PROJECT IS TO MAKE THE NET
ZERO ENERGY GREEN BUILDING.
• PLOT AREA:9565sq m
• MAXIMUM GROUND
COVERAGE:30%
• F.A.R:200
• HEIGHT:35m
• Built-up area : 3,1400 m2
• (18726 m2 – superstructure &
12675 m2- Basement)
• Year of completion : 2013

3. LOCATION AND ACCESSIBILITY:
PRIMARYROAD
(AUROBINDOMARG)
• THE SITE IS SURROUNDED ON EAST BY NDMC HOUSING AND 15M. ROW, ON WEST BY
12M ROW AND ON NORTH LODHI COLONY AND 12M. ROW, ON SOUTH GPRA COLONY
OF ALIGANJ.
• THE PLOT IS EASILY APPROACHABLE FROM AUROBINDO MARG AND LODHI ROAD.
• A METRO STATION "JORBAGH" IS AT WALKABLE DISTANCE OF ABOUT 300M FROM THIS
PLACE.

4. ACHIEVEMENTS:
• 40% SAVINGS IN ENERGY
• ZERO ELECTRICITY BILLING
• 55% SAVINGS IN WATER
• ZERO NET DISHARGE
• LARGEST ROOF TOP SOLAR
POWER SYSTEM IN ANY
MULTISTOREYED BUILDING
(930KWP)
• FIRST IN GOVERNMENT SECTOR
TARGETED FOR BOTH RATINGS OF
GREEN BUILDING (5STAR GRIHA
LEED
India PLATINUM)

6. CRITERIONS OF GRIHA FULFILLED
SITE PLANNING
NO. CRITERION POINTS
1 Site selection 1
2 Preserve and protect landscape during construction 5
3 Soil conservation (till post-construction) 2
4 Design to include existing site features 4
5 Reduce hard paving on-site and/or provide shaded 2
hard-paved surfaces
6 Enhance outdoor lighting system efficiency and 3
use renewable energy system for meeting outdoor
lighting requirements
7 Plan utilities efficiently and optimize on-site
circulation efficiency
3
SOURCE: GRIHAWEBSITE

7. MEASURES FOR SITE
• Wider Front Setback (22m) to protect front tree line
• Preserve the integrity of the green street
• Preservation of the local ecology, Tree Cutting approvals for 46, but only 19
cut
• - 11 Trees Transplanted
• - Excavated Soil reutilized at other construction sites and the Zoo
•The IPB office building for the ministry of
environment and forests has been planned in 2
parallel blocks facing the
•north south direction, with a large linear
open court in the centre.The Building blocks
create a porous block form to optimize
•air movement throughout the site and the N-
S orientation allows for optimum solar access
and shading.

9. •EFFECTIVE VENTILATION BY ORIENTATING THE BUILDING E-W AND BY OPTIMUM
INTEGRATION WITH NATURE BY SEPARATING OUT DIFFERENT BLOCKS WITH CONNECTING
CORRIDORS AND A HUGE CENTRAL COURT YARD.
E W
N

10. •More than 50% area outside
the building issoft
with plantation and grassing.
•circulation roads and pathways
soft with grass paver blocks
to enable ground water recharge

11. BUILDING PLANNING AND CONSTRUCTION STAGE
NO. CRITERION POINTS
10 Reduce landscape water requirement 3
11 Reduce water use in the building 2
12 Efficient water use during construction 1
13 Optimize building design to reduce conventional
energy demand
8
14 Optimize energy performance of building within
specified comfort limits
16
15 Utilization of fly-ash in building structure 6
16 Reduce volume, weight, and construction time by
adopting efficient technologies (such as pre-cast systems)
4
SOURCE: GRIHAWEBSITE

12. BUILDING PLANNING AND CONSTRUCTION MEASURES
Reduce landscape water requirement-
•Drip irrigation
•Use of native species of shrubs and trees having low water demand in landscaping
•Low lawn area so as to reduce water demand.
•Reuse of treated water for irrigation
Reduce water use in the building-
•Low discharge fixtures
•Dual Flushing cistern
•Waste water treatment
•Reuse of treated water for irrigation and cooling towers for HVAC
•Rain water harvesting
Efficient water use during construction-
•Use of curing compound

13. Site and Water Mgmt Strategies
Appropriate Shading from Summer Sun, while allowing in winter sun

14. Optimize building design to reduce conventional energydemand.-
• ENERGY EFFICIENT LIGHT FITTINGS TO REDUCE ENERGY DEMAND
• PART CONDENSER WATER HEAT REJECTION BY GEOTHERMAL MECHANISM. THIS WILL ALSO
HELP IN WATER CONSERVATION IN COOLING TOWERS FOR HVAC SYSTEM
• VARIABLE CHILLED WATER PUMPING SYSTEM THROUGH VFD.VFD ON COOLING TOWERS
FANS AND AHU.
• PRE COOLING OF FRESH AIR FROM TOILET EXHAUST AIR THROUGH SENSIBLE & LATENT
HEAT ENERGY RECOVERY WHEEL
• ENTIRE HOT WATER GENERATION THROUGH SOLAR PANELS.
• MAXIMUM DAYLIGHTING
• REGENERATIVE LIFTS.
• USE OF LUX LEVEL SENSOR TO OPTIMIZE OPERATION OF ARTIFICIAL LIGHTING.
• SOLAR POWERED EXTERNAL LIGHTING.

15. Optimize energy performance of building within
specified comfort limits-
• Reducing energy consumption (compared to GRIHA benchmarks) while
maintaining occupant comfort:
• o For achieving visual comfort:
• • Direct line of sight to the outdoor environment to vision glazing for building
occupants for more than 90% of the occupied spaces.
• Avoiding Deep floor plates to create maximum daylighted spaces.
• • Landscaping planned with native species and water body features in central
court and all around the building.
• o For achieving thermal comfort:
• • All circulation spaces or passages were naturally ventilated / shaded / not air
conditioned.
• • Energy Efficient Chilled beam based Cooling system proposed together with
condenser water cooling through ground pipes.
• • Openable windows were proposed in conditioned areas to be able to utilize
favourable outdoor conditions.
• • Insulated Walls through using an integrated AAC + Rockwool combination
together with high efficiency DGU’s and UPVC
• frames for the windows.

16. Energy Conservation Measures

17. NO. CRITERION POINTS
17 Use low-energy material in interiors 4
18 Renewable energy utilization 5
19 Renewable-energy-based hot water system 3
20 Waste water treatment 2
21 Water recycle and reuse (including rainwater) 5
RECYCLE,RECHARGE &REUSE
WASTE MANAGEMENT
NO. CRITERION POINTS
22 Reduction in waste during construction 1
23 Efficient waste segregation 1
24 Storage and disposal of wastes 1
25 Resource recovery from waste 2
SOURCE: GRIHAWEBSITE
SOURCE: GRIHAWEBSITE

18. HEALTH &WELL BEING
NO. CRITERION POINTS
26 Use low-VOC paints/adhesives/sealants 3
27 Minimize ozone depleting substances 1
28 Ensure water quality 2
29 Acceptable outdoor and indoor noise levels 2
30 Tobacco smoke control 1
31 Provide at least the minimum level of accessibility for persons
with disabilities
1
32 Energy audit and validation MANDATORY
33 Operation and maintenance 2
34 Innovation points 4
SOURCE: GRIHAWEBSITE

19. 19
ENERGY SCENARIO
(Average Annual)
Power Requirement (Base
Case)
22.0 lakh KWh
Power Requirement(Design
Case)
13.6 lakh KWh
Percentage savings
40% (approx)
Targeted Solar Power
Generation
14.3 lakh KWh
Net Power generation
0.7 lakh KWh
(Surplus)

20. 20
Energy Efficiency
ECBC 2007 ACTUAL
Lighting Power
Density (LPD)
11.8 W/sqm 5 W/sqm
HVAC load 20 sqm/Tr 40 sqm/Tr
Total 100W/sqm 40 W/sqm

21. SOURCE- AR,DEEPENDRA PARSAAD REPORT

22. 20
SOLAR PV SYSTEM
TOTAL AREA
TOTAL AREA OF PANELS
ANNUAL ENERGY Generation
930KWp CAPACITY
6000 M2
4650 M2
14.3 lakh units
Highest efficiency (20%) Solar PV panels
Grid Interactive System
NET ZERO ENERGY

23. CHILLED BEAMS INDUCTION
UNITS OVERVIEW:
Chilled Water
Hot Water
Total room mixing
is achieved
through
Convection
currents
within the space
Primary air ventilation
from Dedicated Outdoor
Air Source

24. CHILLED BEAM INSTALLED
AT SITE:
23
Flexible Duct (6 Inch dia.)
Chilled Beam
Drain Pipe (¾” dia.)
Chilled Water Supply Pipe (½” dia.)
Chilled Water Return Pipe (½” dia.)
Supply
Air
Induce
dAir

25. ANGEGEOTHERMAL HEAT EXCH
AT SITE:• There are 180 vertical bores at the
Depth of 80 meter all along the
Building Premises. Minimum 3
meter distance is maintained
between any two bores.
• Each bore is lowered with HDPE
pipe U-loop (32mm outer Dia.) and
grouted with Bentonite Slurry.
• Each U-Loop is connected to MS
Header Pipe(100mm Dia.)which
finally joins the Condenser Water
Line in Plant Room.
• Condenser hot water is sent at
100°F (37.8° C) & back at 900 F
(32.2° C).
• One U-Loop has 0.9 TR Heat
Rejection capacity, so all together
160 TR of Heat rejection is obtained
without using a cooling tower.
• Enormous water saving since no
make up water is required.
• • Make up water pumping &
treatment cost get eliminated.
• • Saves cooling tower fan energy.

26. MATERIALS
•Stone available in nearby area for flooring
•Terrazzo flooring with locally available stone
materials.
•Fly ash brick.
•AAC blocks.
•Jute bamboo composite for door frames &
shutters.
•UPVC windows with hermetically sealed double
using low heat transmittance index glass.
•Use of high reflectance terrace tiles for low heat
ingress.
•Avoided aluminum as it has high embedded
energy
•Sandstone Jalis.
• Stone and Ferrocement Jalis
Satisfies all the quality parameters that
a normal flush door does

27. •Bamboo Jute Composite Doors and frames & flooring
• High Efficiency Glass, high VLT,low SHGC & Low U-value,
•Optimized by shading
• Light Shelves for bringing in diffused sunlight
•Use of material available having Recycled content