Presents Green buildings & sustainable habitat : The … of New and Renewable Energy, GoI GRIHA...
Transcript of Presents Green buildings & sustainable habitat : The … of New and Renewable Energy, GoI GRIHA...
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Ministry of New and Renewable
Energy, GoI
GRIHA Council Presents
Green buildings & sustainable habitat : The GRIHA way
The Energy and Resource Institute
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Why green building?
Why rating?
Why GRIHA?
The 3 big questions???????????
1 2 3
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Role of construction and buildings in development
Energy shortage of 2.1
per cent, or 24,077
million units (Mus)
48.8% population urban
by 2030
42% annual electricity
consumption attributed
to by buildings
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Water and Waste: prevailing urban challenge
Water availability to
decrease by 15% per
capita 2020
Only 26% of estimated
domestic waste water
gets treated
42 million MT of solid
waste generated in urban
area daily
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Challenges
• India has: – 2nd largest population
– 12th largest economy
– 70% population in rural areas
– Rapidly expanding urban areas
• Rising: – Energy consumption
– Associate GHG emissions
– Water consumption
– Unhandled waste
– Urban flooding
– Urban heat island effect
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Policy response
• National Building Code • Energy Conservation Building Code • Appliance star labeling programme of BEE • Environmental Clearance/ EIA norms • Central Pollution Control Board guidelines • National Mission on Sustainable Habitats • Jawaharlal Nehru National Solar Mission • Solar buildings programme for energy efficiency • Solar cities programme • Waste to energy programme
Lack of integration and uniformity and clarity on application domain (e.g ECBC does not talk about residential buildings); Environmental clearance is a nightmare for many builders; no integration between comfort standards of NBC and efficiency standards of ECBC, implementation challenges- govt works in silos
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GRIHA compliant building: beyond ECBC
ECBC Compliance: •Insulation
•High Performance glass
•Controls
•Efficient electrical , mechanical and
lighting systems
Incremental cost: 15%
Payback period < 5 years
GRIHA Compliance: •ECBC +
•Passive principles (shading,
orientation, controlled glass area)
•Higher indoor design conditions
(higher by 1 deg C)
•Optimized lighting design
No further incremental cost
Payback period: < 4 years
37% 45%
kWhr/yr
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Inception of GRIHA
• India’s first rated green building.
• Green building consultant – TERI (The Energy & Resource Institute)
• Project got LEED Platinum rating in 2001
• TERI GRIHA released in 2005
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National and international endorsements
National rating system for green buildings in INDIA
– MNRE: 2007
Innovative tool to measure
greenness of buildings
– UN: 2009
India’s own green building rating
system
– UNFCC: 2015
Tool for implementing RE in building sector
‘The Climate Reality Project’ organization by
Mr. Al Gore : 2008
“Common Carbon Metric” (kWhr/sq
m/annum), for international
building energy
data UNEP : 2010
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Which rating ??????
Residential
Commercial
Office
Institute
Bank
Museum
Airport
Industry
School Hospital
Hotel
Shopping complex
Restaurant
Sports complex
Dhaba
Multiple buildings typology
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GRIHA variants
SVAGRIHA
Built-up area
100 – 2,499 m²
GRIHA
Built-up area
> 2,500 m²
GRIHA LD
Site area > 50 hectare
New construction
For existing building
GRIHA Prakriti Day Schools
GRIHA EB Existing building
Coming soon
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Tool to facilitate design, construction, operation of a green building, and in turn ….measure “greenness” of a building in India
What gets measured gets managed
GRIHA
Green Rating for Integrated Habitat Assessment
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Implementation
mechanisms
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Design
Construction
Operation
Maintenance
GRIHA
Stages involved in project
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Audit data to be submitted every 5
years
Registration
Orientation workshop
Site visit 1
Site visit 2
Documentation Submission
Site visit 3
External evaluation
Provisional Rating
Audit report
Final rating
Design
Construction
Operation Maintenance
Rating process
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Versatility
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All building types
All types of building
AC
Non AC
Hybrid
All climatic zones
Hot – Dry
Warm – Humid
Composite
Temperate
Cold
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Non applicability clauses
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Performance based
rating
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Puts emphasis on Human Comfort – since that’s what
buildings are designed for!
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Enhancing transparency and ease
• Web enabled GRIHA online tool for project documentation and evaluation
• GRIHA app: to enhance accessibility and one to
one connectivity between GRIHA and the project proponents
• Pre certification meetings through skype: to avoid
the extra financial burden of travelling and enhancing accessibility to the GRIHA Secretariat
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Building capacity
• Project design charrettes
• GRIHA training programmes for Evaluators and Trainers
• Setting up Centers of Excellence
• Developing curriculum
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Other benefits of aligning
with GRIHA
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Obvious
Neglected
Energy Saving Water Saving Waste management
Economical Health Time management
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Electricity and water security for customers: first choice for purchasing property!
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Faster construction
Systematic operations on site
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Minimal health related issues on site
“ Malaria outbreak avoided at a project site in Tirupati due to regular fumigation of labour hutment”
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Faster hence cheaper
On a 200 crore Rupees project
One week delay = Loss of Rs. 45 Lakh
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Significant System downsizing
Tonnage of AC brought down from 1500 TR to 875
TR – Saving 6 crore Rupees
Station cum commercial complex for Delhi Metro Rail Corporation(16 hour /day use)
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Lesser operational cost
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
Coolingdemand (TR)
Electricalload (kW)
Annualenergy
consumption(MWh)
Optimised system size in green buildings
Conventional case Efficient case
33% 41%
38%
Graph showing cost saving in terms of energy saving
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Transparent- online processes
Online submission and evaluation of GRIHA documents- increasingly important due to the Real Estate Bill
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Continuous handholding support…
• Continuous engagement: – Workshops for technical
staff
– Engagement on site for contractors/engineers
• Regional Secretariat presence in Pune, Mumbai, Bangaluru, Goa, Bhuvneshwar, Assam
GRIHA mobile phone app
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…continuous handholding support
Examples of good practice
1. Tree protection
2. Mulching of top soil
3. Demarcation of construction area 4. Barricading along site
1 2
3 4
Detailed site visit reports are prepared and uploaded on the online panel. These
reports are refereed during final evaluation of the project
Sample site visit report
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Facilitates compliance with policy
• Compliance with government policies and requirements
• Fast track MoEF clearance through precertification- meetings through Skype
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Mechanisms for implementation • Upto 25% free FAR in Haryana for GRIHA rated buildings. • The Government of West Bengal and Uttar Pradesh has notified FAR incentive for GRIHA • CPWD Plinth Area Rates revised as per GRIHA norms/ benchmarks (DSR 2014) • CPWD Centre of Excellence on green buildings and GRIHA established at Ghaziabad • Minimum 3 Star for all Central Government and Public Sector Undertaking buildings
mandatory • Minimum 3 Star for all CPWD buildings mandatory • DDA, NBCC, BHEL have revised their tender documents to incorporate minimum 3 Star
GRIHA compliance • GRIHA pre certification accepted by MoEF for fast track environment clearance • Adopted by PWD, Government of Chandigarh, Assam, and Kerela • Adopted by the Cabinet of the Government of Delhi • Pimpri Chinchwad Municipal Corporation (PCMC) &Pune Municipal Corporation (PMC)
Maharashtra gives financial incentives to developers (upto 50% rebate in premium) and occupants of GRIHA compliant projects (property tax rebate).
• NOIDA & Greater NOIDA Authority has notified FAR incentive for GRIHA 4 and 5 Star projects
• NBCC and OTDC have signed MoUs with TERI for GRIHA implementation in all upcoming projects
• The Government of Punjab has notified FAR incentive for GRIHA • Mandate by Sikkim government • State of Assam adopts GRIHA
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Enhanced brand projection
“I congratulate TERI and the Ministry of New and Renewable Energy, Government of India on the development and implementation of GRIHA- the indigenous green building rating system of India. I hope that others would emulate and benefit from the examples set through GRIHA buildings”
GRIHA Rating awarded by Hon’ble President of India Shri Pranab Mukherjee
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Impact of GRIHA
• Number of registered projects: 775
• Registered built up area >30 million sq m
• GRIHA & variants rated projects: 70
• Number of GRIHA pre certified projects: 70
Resource use optimisation
Social transformation
Market transformation
Green jobs
Synergies across policies and programmes to implement objectives
Enhancing capacities of stakeholders
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Projection saving
10 million sqm of GRIHA 5 star
certified project can save
• Enough electricity to power
about 100,000 urban homes
• Enough water to meet needs of
22000 urban homes
• Monitored data to ensure
compliance
• 6MW PV installation to enhance
supply
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How does GRIHA make a difference?
Before After
On site
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After
How does GRIHA make a difference?
On site
Before
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Co benefits: health, safety, reducing pollution loads
Workers working with stones or other such activities which involve a lot of dust, are to be given face masks as depicted here
Wheel washing facility at site entrance
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Projects
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CESE building IIT Kanpur – very little hard paved surfaces, lots of shading under trees
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CESE building, two years after construction
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CESE building IIT Kanpur – design and site planning respond to various site features like weaving the building around the trees, longest facades face north and south etc.
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CESE building, IIT Kanpur
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Panchakula, Haryana
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Snapshot of the courtyard in HAREDA
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HAREDA, Panchkula
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INDIRA PARYAVARAN BHAWAN, 930 KWp Solar PV installation on site
Solar PV in elevation
Shaded atrium
Shaded roof
Solar PV on the roof
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CIL, Kolkata
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Site Area: Approx 9584.24m2
Built up Area: 4886.90 m2
Air-conditioned Area: 2629.93 m2
Non Air- conditioned Area: 2256.97 m2
Energy Performance Index (EPI): 89.16 KWh/
m2/year
Renewable Energy: Rated capacity of solar PV
installed on site is 22 KW
GRIHA provisional rating: 5 Stars
Year of completion: 2014 - 15
General Information
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More than 80% of the regularly occupied spaces receive optimum daylight. The building is optimally oriented and façade is designed such that the heat gain is minimized and daylight is maximized.
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• The landscape water demand has been reduced by minimizing the turf area, planting only indigenous species and using drip irrigation system for shrubs and trees.
• Building water use has been reduced by using low flow fixtures. • Phytorid technology based STP of 25 kLD capacity has been installed on site. 35 kL of storage tank
has been installed to collect rainwater for use in the building.
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• Landscape has been designed to maximize green area and minimize hard paving. The net paved area is only 21.32% of landscape area.
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• Fly ash has been extensively used in the project in RCC, mortar plaster and in the form of AAC blocks.
• Low energy materials such as unpolished stone and ceramic tiles have been used.
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Location: Galtare, Wada, Thane, Maharashtra -
421303
Site Area: 70 acres
Built up Area: 2400.65 m2
Non Air- conditioned Area: 2400.65 m2
Energy Consumption Reduction: 57% reduction
compared to GRIHA benchmark
EPI: 42 KWh/ m2/year
Renewable Energy: 30KWp
GRIHA provisional rating: 5 Stars
Year of completion: …2012...
General Information
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• Optimum window openings • Light floor for light diffusion • Soft landscape outside giving no reflected glare • Shaded walls and openings
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• Buildings placed such that minimal trees are cut and agriculture is not impacted
• Buildings on hard ground to save on foundation cost . • Layout based on hydrogeological survey’s inputs so
that development does not impact negatively the recharge and discharge zones of water.
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• Use of precast arch panels for roofs • Use of Stabilized Soil Cement blocks on walls and maintaining the same unplastered. • Double tile roofing for final roofs.
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• CSEB based construction that has an embodied energy of 1% the regular construction(0.275MJ/Kg energy in CSEB wall and 72.3MJ)
• U-Block and arch lintels, CSEB arch panel roofs • Use of quarry dust to replace sand
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• Solar Electric panels of 30KW capacity • Solar water heaters of 500L capacity • Biogas plant processing the food wastes & animal waste and producing 30cu.m gas • Recovering up to 95% of sewage water using a green sewage management
technology called Soil Biotechnology, which is used for landscaping.
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Soil Bio-Technology at Govardhan Eco Village
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• The civil cost was estimated around 750/sqft including brickwork. Additional expenses were floor finish, electrical, plumbing, bio-gas plant, furniture, kitchen equipment, solar water heater and solar power plant landscaping etc. Paint work was negligible as it is only done in some beams and some columns.
• Use of old bricks in construction.
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LPD has come out as 3.9w/sqm for interior lighting including retail
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