Chapterisation Chapter Chapter 1 INTRODUCTION INTRODUCTION 1.1 introduction and need identification 1.2 Aim 1.3 Objectives 1.4 Scope and limitations 1.5 Methodology 1.6 Conclusion Chapter 2 LITERATURE LITERATURE STUDY
3.4 3.5 3.6 3.7
The basic features The Benefits Why was GRIHA developed and how? 9 steps to get a building building evaluated under GRIHA 3.8 Rating system
Chapter Chapter 4 COMPARA COMPARATIVE TIVE STUDY STUDY OF GRIHA GRIHA WITH OTHER RATING SYSTEM
2.1 Introduction I ntroduction ² General bibliography 2.2 Unpublished works works
Chapter 5 DETAIL STUDY AND ANALYSIS GRIHA
2.3 Published works works
CERTIFIED BUILDING (CESE , IIT KANPUR) IN INDIA
2.4 Codes and Standards 2.5 Websites 2.6 Conclusion Chapter Chapter 3
UNDERST UNDERSTANDIN ANDING G ¶GRIHA· ¶GRIHA· AND THE ¶GRIHA· RATING SYSTEM
3.1 What is GRIHA 3.2 The context and development 3.3 The Challenges
5.1.1 Architectural Architectural data about the building building 5.1.2. Building orientation orientation and architecture 5.1.3 Efficiency in HVAC HVAC design 5.1.4 Energy efficient eff icient lighting design. 5.1.5 Energy efficient eff icient plumbing and water conservation 5.1.6 Soil conservation 5.1.7 Paved area and vegetation. vegetation. 5.1.8 Renewable Renewable energy use. 5.1.9 Technical Data sheets
Chapterisation
5.2 Fortis Hospital , New Delhi 5.3 Haryana Technology Park (Green Spaces) Faridabad 5.4 Hindustan Lever Limited ,Mumbai 5.5 ITC Chennai Hotel Project , Chennai 5.6 Metro Station - Sushant Lok , Gurgaon 5.7 Office of Public Works Works Department, Department, Nashik 5.8 M.S M.S P Infocity, Manesar 5.9 The Doon School , Uttranchal 5.10 Merlin Projects Ltd , Kolkata 5 .11 Conclusion Chapter 6 EQUIVALANCY ANALYSIS ANALYSIS OF GRIHA CERTIFIED BUILDING WITH LEED CERTIFICATION ±
±
Rating system comparison for the above projects and deduction of rating as per LEED framework, hence reaching the equivalency between the two system. Performa to make all these building in LEED certification.
Chapter 7 CONCLUSIONS, CONCLUSIONS, SUGGETIONS APPENDIX: Relevant Literature Literature,, Data used
Chapter 1
Introduction All over the world, the construction industry out of many other sectors, is one of the largest energy consuming sectors. The construction sector has a major share in the usage of energy and resources on a global level. In Indian context, estimates suggest that about 20 to 25 percent of the total energy demand is due to manufacturing materials required in the building sector, while another 15 percent goes into the running needs of the building. The Ministry of Power estimate indicates that about 20 to 25 percent of the total electricity consumed in government buildings in India is wasted because of inefficient design parameters of buildings, which results in an annual energy related financial loss of about 1.5 billion Rupees. Here arises the need for sustainability in this sector. To achieve the collective objectives of energy security and environmental protection, eco-sensitive buildings or "Green Buildings' that utilize their resources judiciously, minimize their emissions and have efficient waste management systems, should be considered and designed.
GRIHA, an acronym for Green Rating for Integrated Habitat Assessment, is the National Rating System of India. It has been conceived by TERI and developed jointly with the Ministry of New and Renewable Energy, Government of India. It is a green building 'design evaluation system', and is suitable for all kinds of buildings in different climatic zones of the country.
Chapter 1 1.1 NEED: Keeping in view, the growing ill effects of the building sector on the environment, there is an urgent need to take steps towards sustainable development, towards creating a built environment which will not contribute in deterioration of the nature. The Indian building industry is highly de-centralized with people and/ or groups engaged in design, construction, equipment provision, installation, and renovation working together. Each group may be organized to some extent, but there is limited interaction among the groups, thus disabling the integrated green design and application process. Hence the rating system should follow Indian context. Identification of Indian factors that should be maintained in case of a GREEN BUILDING in India. Finding the appropriate approach to solve the problem in India.
Chapter 1 1.2 AIM The basic aim of the seminar is to identify various issues related to GRIHA certification and green buildings in India, provide detailed investigation and analyze the guidelines specified in the GRIHA rating system and give its implications and application in building project. Project specific Compliance to GRIHA Green Building. The seminar work provides with a thorough understanding of designing and rating a GRIHA certified green building and highlights the importance of acceptance of GRIHA with respect to the other existing rating frameworks eg. LEED by the help of a thorough case studies of existing buildings in India.
1.3 OBJECTIVE To study the concept of GRIHA rating system in Indian context, the development in the field up till date. To provide a thorough understanding of GRIHA points and give methods and alternatives for their realization in a project. To study and analyze in detail some green buildings on GRIHA framework. Deduction of a comparative study of GRIHA and LEED rating system with a focus on the relevancy in Indian context. Identification of reasons why GRIHA should be more used than the other rating system in INDIA. Generate an equivalency matrix of rating between GRIHA and LEED with live case studies.
Chapter 1
Introduction 1.4 SCOPE AND LIMITATIONS: The seminar work will involve a brief listing of the different rating systems followed for rating green buildings, but only GRIHA India rating system will be discussed in detail with a exhaustive study of all the points included, their possible alternatives and their application in the form of rating a green building. Also the reasons why accept GRIHA , not the other rating systems in India.
1.5 METHODOLOGY:
DEFINING THE NEED , SCOPE, AIM AND LIMITATION OF STUDY CHAPTER 7
CONCLUSIONS SUGGESSIONS
CHAPTER 6
Equivalency quotient between LEED and GRIHA.
UPTO CHAPTER 2
LITERATURE REVIEW
CHAPTER 5
Understanding a live case sudy of GRIHA certified building - hence understanding the procedures to achive.
UPTO CHAPTER 3
UNDERSTANDING THE GRIHA AND ITS FRAMEWORK
CHAPTER 4
COMPARISION OF GRIHA WITH OTHER RATING SYSTEMS eg. LEED, BREEAM
Chapter 2
Literature study A) Unpublished works: Thesis / Seminar s Strategies for sustainable practices in building projects (Thesis work) By Jyothi Subray Hegde, Jan 2003 Sustainable Development: Policy Framework for CWG 2010 (Seminar work) By Neha Gupta, Jan 2008
Published articles: Carbon credits can't be traded for long term- ECB s Tatas plan to tap carbon credit
Holistic Approach to sustainable buildings (Thesis work)
mart]
By Tanushree Mohanty, May 2006
C) Documents
Sustainable development related to building projects
Energy conservation code
(Thesis work) By Dependra Gabryal, May 2002
Leed India document - Jan 2007
B) Published works: books
TERl-Griha document
Building materials in India: 50 years - A Commemorative
.
volume by BMTPC
D) Websites
The journal of Indian institute of Architects
www.greenbuilding.com
"Material and construction techniques for sustainable
www.wikipedia.com
development", Feb. 2006
www.usgbc.org/
Paper presented on ´Green buildings" by Debajit Pal it
www.terin.org
from TERI, June 2004
www.sustainable-buildings.org
Sustainable building Design Manual - Vol 2 by TERI.
www.cst.iisc.emet.in http://urbanarchitecture.in/
Chapter 3
Understanding ¶GRIHA· What is GRIHA ? GRIHA is an acronym for Green Rating for Integrated Habitat Assessment . GRIHA is a Sanskrit word meaning ² ¶Abode·. Human Habitats (Buildings) interact with the environment in various ways. Throughout their life cycles, from construction to operation and then demolition, they consume resources in the form of energy, water, materials, etc. and emit wastes either directly in the form of municipal wastes or indirectly as emissions from electricity generation. GRIHA attempts to minimize a building·s resource consumption, waste generation, and overall ecological impact to within certain nationally acceptable limits / benchmarks. The Context and Development TERI took the responsibility of popularizing green building by developing a tool for measuring and rating a building's environmental performance in the context of India's varied climate and building practices. The green building rating system devised by TERI and the MNRE is a voluntary scheme. It has derived useful inputs from the upcoming mandatory voluntary building codes/guidelines being developed by the Bureau of Energy Efficiency, the Ministry of NonConventional Energy Sources, MoEF (Ministry of Environment and Forests), Government of India, and the Bureau of Indian Standards. The rating system aims to achieve efficient resource utilization, enhanced resource efficiency, and better quality of life in the buildings
Chapter 3
Understanding ¶GRIHA· Criteria of the Rating System 1. Site Selection and Site Planning Criterion 1 Site Selection Criterion 2 Preserve and protect the landscape during construction Criterion 3 Soil conservation (till post-construction). Criterion 4 Design to include existing site features Criterion 5 Reduce hard paving on-site and /or provide shaded hard - paved surfaces Criterion 6 Enhance outdoor lighting system efficiency. Criterion 7 Plan utilities efficiently and optimize on-site circulation efficiency
Health and well being during construction Criterion 8 Provide at least, the minimum level of sanitation/safety facilities for construction workers. Criterion 9 Reduce air pollution during construction.
2. Building Planning and Construction Stage Water Criterion 10 Reduce landscape water requirement Criterion 11 Reduce building water use. Criterion 12 Efficient water use during construction.
Chapter 3
Understanding ¶GRIHA· Energy: end use Criterion 13 Optimize building design to reduce the
conventional energy demand.
Health and well-being during post-construction occupation Criterion 26 Use of low-VOC (volatile organic compounds)
paints/ adhesives / sealants.
Criterion 14 Optimize the energy performance of the
building within specified comfort limits.
Criterion 27 Minimize ozone depleting substances
Criterion 15 Utilization of fly ash in the building structure.
Criterion 28 Ensure water quality.
Criterion 16 Reduce volume, weight, and time of construction
Criterion 29 Acceptable outdoor and indoor noise levels.
by adopting an efficient technology (e. g. pre-cast systems, ready-mix concrete, etc.). Criterion 17 Use low-energy material in the interiors.
Criterion 30 Tobacco and smoke control. Criterion 31 Provide the minimum level of accessibility
for persons with disabilities.
Energy: renewable
3. Building Operation and Maintenance
Criterion 18 Renewable energy utilization. Criterion 19 Renewable energy - based hot- water system.
Criterion 32 Energy audit and validation.
Recycle, recharge, and reuse of water
Criterion 33 Building operation and maintenance.
Criterion 20 Wastewater treatment
4. Innovation
Criterion 21 Water recycle and reuse (including rainwater). Waste management
Criterion 34 Innovation points.
Criterion 22 Reduction in waste during construction.
1.
Alternative transportation
Criterion 23 Efficient waste segregation.
2.
Environmental education
Criterion 24 Storage and disposal of waste.
3.
Company policy on green supply chain
4.
Lifecycle cost analysis
5.
Enhanced accessibility for physically/mentally challenged.
6.
Any other criteria proposed by the client
Criterion 25 Resource recovery from waste.
Chapter 3
Understanding ¶GRIHA· Evaluation procedure of criterion of GRIHA
Points scored Rating 50²60
One star
61-70
Two star
71-80
Three star
81-90
Four star
91-100
Five star
9 Steps to get a building evaluated Under GRIHA 1. Registration 2. Submission of docum entation 3. Preliminary evaluation by TERI Technical team 4. Evaluation by panel of experts 5. Preliminary rating with comments sent to project team 6. Final submission of documents 7. Final evaluation by panel of experts 8. Approval of rating by advisory committee 9. Award of rating
List of criteria Criteria 1: Site Selection
Points
Remarks
1
Partly mandatory
5
Partly mandatory
Criteria 2: Preserve and protect landscape during construction /compensatory depository forestation. Criteria 3: Soil conservation (post construction)
4
Criteria 4: Design to include existing site features
2
Mandatory
Criteria 5: Reduce hard paving on site
2
Partly mandatory
Criteria 6: Enhance outdoor lighting system efficiency
3
Criteria 7: Plan utilities efficiently and optimize on site circulation efficiency
3
2
Mandatory
Criteria 8: Provide, at least, minimum level of sanitation/safety facilities for construction workers Criteria 9: Reduce air pollution during construction
Mandatory 2
Chapter 3
Understanding ¶GRIHA· Criteria 10: Reduce landscape water requirement
3
Criteria 22: Reduction in waste during construction
2
Criteria 11: Reduce building water use
2
Criteria 23: Efficient waste segregation
2
Criteria 12: Efficient water use during construction
1
Criteria 24: Storage and disposal of waste
2
Criteria 13: Optimize building design to reduce conventional energy demand
6
Criteria 25: Resource recovery from waste
2 4
Criteria 14: Optimize energy performance of building within specified comfort
12
Criteria 26: Use of low - VOC paints/ adhesives/ sealants. Criteria 27: Minimize ozone depleting substances
3
Mandatory
Criteria 15: Utilization of fly ash in building structure
6
Criteria 28: Ensure water quality 2
Mandatory
Mandatory
Criteria 29: Acceptable outdoor and indoor noise levels
Criteria 16: Reduce volume, weight 4 and time of construction by adopting efficient technology (e.g. pre-cast systems, ready-mix concrete, etc.)
Criteria 30: Tobacco and smoke 1 control Criteria 31: Universal Accessibility
Criteria 17: Use low-energy material in interiors
4
Criteria 18: Renewable energy utilization
5
Criteria 19: Renewable energy based hot-water system
3
Criteria 20: Waste water treatment Criteria 21: Water recycle and reuse (including rainwater)
2
1
Criteria 32: Energy audit and validation
Mandatory
Criteria 33: Operations and maintenance protocol for electrical and mechanical equipment
2
2
Total score
100
Criteria 34: Innovation (Beyond 100)
4
5
Total score
104
Partly mandatory
Mandatory
Chapter 4
Comparison of GRIHA with other rating framework· INTRODUCTION The various rating systems discussed below provide a strategy to rate a building on some pre formulated energy efficiency parameters. They provide a way to measure the extent to which a building is environment friendly, sustainable and energy efficient in itself. These are: 1. TERI-GRIHA This rating system is developed by TERI- The Energy and Research Institute. The assessment is based on Energy and Environmental performance of buildings. The certification is given in the form of stars (1 to 5) depending upon the points secured by buildings. 2. LEED - Leadership in Energy and Environmental Design This rating system was developed by the U.S Green building council in 1993. It evaluates and rates buildings on the basis of th eir energy and environmental performance, The rating is given in the form of certification, silver, gold and platinum depending upon the points secured by buildings. 3. BREEAM - Building Research Establishment's Environmental Assessment Method This rating system was developed by the United Kingdom in 1990. It evaluates and rates buildings on the basis of b uilding environment. The rating Is given in the form of pass, good, very good and excellent depending upon the p oints seemed by buildings.
Chapter 5
DETAIL STUDY AND ANALYSIS ´GRIHAµ CERTIFIED BUILDING (CESE , IIT KANPUR) IN INDIA The CENTRE FOR ENVIRONMENTAL SCIENCE AND ENGINEERING is a research facility at the IIT (Indian Institute of Technology), Kanpur on a plot area of 175, 000 square metre (approximately 4.5 acres). Given the function of the building, it was decided that it should be designed in an environment friendly manner. It has been conceptualized, designed and constructed as a "building in the garden" that is sustainable and environment friendly. The building is fully compliant with the ECBC (Energy Conservation Building Code). The Centre has approximately 41% reduction in energy consumption using the TERI-GRIHA baseline. The building has completed its evaluation process and has achieved FIVE STAR TERI GRIHA rating. The evaluation committee has awarded a final score of 93/100 to the building.
Chapter 5
Study of performance of existing building Architects : Kanvinde Rai and Chowdhury , ND Consultants: Structure : Planning and design bureau , ND Electrical : Kanwar Krishen Associates Plumbing : Deolalikar consultants , New delhi HVAC: Gupta Consultants Pvt. Ltd. Landscape : Yogesh Kapoor , New Delhi Energy Efficiency : The energy and resources institute (TERI) Project Management: Institute works department, Contractors: Gupta Enterprise, New Delhi Kailash Electric , Kanpur Hilltop refrigeration , New Delhi Vishnu saran and Co. , Kanpur TATA BP Solar, New Delhi BHEL , Lucknow Built Up Area: 4240 m2 (45640 ft2) Project Cost : 11.5 Crore Laboratories - 10 nos Faculty Rooms - 18 nos. Meeting Rooms - 4 nos. Library , Seminar Hall - 100 cap. Class Rooms - 60 cap. & 40 cap. Exhibition Area Amphitheatre integrated with Water Body Shaded Indoor Landscaped Court
Chapter 5
Study of performance of existing building Salient features of performance at a glance 1.
The building is fully compliant with the ECBC (Energy ConservationBuilding Code).
2.
Sustainable site planning has been integrated to maintain favourable microclimate. The architectural design has been optimized as per climate and sun path analysis.
3.
The building has energy-efficientartificial lighting design and daylight integration.
4.
It also has energy-efficient air conditioning design with controls integrated to reduce annual energy consumption.
5.
Passive strategies such as an earth air tunnel have been incorporated in the HVAC design to reduce the cooling load.
6.
The Centre has attempted to conserve and utilize resources efficiently; and recycle, reuse, and recharge the systems at every stage of design and construction.
7.
Conceptual Site Plan showing the orientation of the building to admit maximum daylight from three sides and simultaneously making use of naturally low-lying area as a water body and providing ambient temperature
8.
The Centre conceptualized as a 'building in the garden' is sited adjoining the horticulture nursery to the east. The developmentco-exists with nature, is sustainable and environment friendly.
9.
The Centre is limited to ground and one upper floor so as to nestle it amidst the existing trees, thus respecting the natural landscape of the site
10. The EPI (Energy Performance Index) of the building is predicted to be 45.43 kWh/m2/annum, which is 41.3% less than the TERI GRIHA benchmark. In comparison to a conventional building, 59% energy savings are predicted in the CESE building.
Chapter 5
Study of performance of existing building The building is placed to preserve existing trees and minimize road lengths. Access from the south, off the campus arterial road brings visitors to the entry point from where they are led through a shaded path to the lobby. The building
has been located with minimum
disturbance to the pre-construction topography & slope of the land. The exterior building envelope is provided with insulation
in the
cavity
walls and
within the
waterproofing of the roof which is finished with china mosaic for heat reflectance. Insulated glass is used for the windows. The water body has been located in accordance to the site contour, thus acting as a reservoir for the storm water runoff from the building. In addition to maintaining an optimal microclimate, the pond, located strategically in the landscape, provides an interface between the built and open spaces. The water body also helps in optimizing the microclimate.
Chapter 5
Study of performance of existing building Links connecting laboratories are conceived as bridges floating amidst greenery with overhead skylights providing shafts of light and the curved roof allows hot air to escape, thereby ensuring air movement through the passages which are not conditioned. Ventilators facilitate the stack effect and thus provide air movement in the non conditioned spaces. The internal corridor and lab spaces get natural light from skylights on the roof.
Chapter 5
Study of performance of existing building Salient Features: Towards Energy Efficient HVAC: Integrating the water body in the design helps maintain an optimal microclimate Optimization of the building envelope by using cavity walls with insulation, insulation of roof and surface finishing with china mosaic, which reflects a major part of the heat . Efficient glazing for openings, which minimizes solar gains in summer and heat losses in winter Roof shaded by bamboo trellis with green cover to cut the direct heat gain of the building. Provision of an internal courtyard that is covered by louvers allowing for free air movement and efficient shading from sunlight. It is estimated that after optimizing building envelope, thermal comfort conditions would be achieved for more than 90% of the occupied hours in the non conditioned spaces. Efficient HVAC system with controls adopted. Architectural design has been optimized based on the climate and sun path analysis, thereby achieving reduction in energy consumption. Pre cooling of fresh air supply to AHU's & corridor by passive techniques
Chapter 5
Study of performance of existing building Towards Energy Efficient Daylighting & Artificial lighting: Efficient glazing for openings, which maximizes on natural daylight. Provision of an internal courtyard that is covered by louvers allowing for free air movement and efficient shading from sunlight. Provision of skylights and ventilators in the common spaces such as corridors, ensuring good light and ventilation. Efficient lighting design with controls and integrated with daylighting. 30% of internal lighting demand met from renewable energy source through PV panels. Outdoor lighting demand met by solar energy. The facility is fully ECBC (Energy Conservation Building Code) compliant Architectural design has been optimized based on the climate and sun path analysis, thereby achieving reduction in energy consumption
Chapter 5
Study of performance of existing building Towards Energy Efficient Plumbing & Water Conservation: Hot water requirement is met by solar hot water system. Reduction in water demand by selection of efficient fixtures. Dedicated sewage treatment plant provided and the grey water used for horticulture. Rain water from the building and immediate area around is collected and routed through a sedimentation tank to the water body that is used as spray pond. The overflow is connected to a groundwater recharge pit. All utility (services) lines, like sewer, water supply, electrical, etc. have been consolidated. This minimizes site disturbances due to trenching during laying as well as in the maintenance of these services. Water Conservation Water conservation and water retention is an integral part of the design. The roof water and run-off from open spaces next to the buildings are drained through a system of catch basins, filtered and collected in the water body. Grass swales are constructed to collect the surface runoff from rest of the green and paved areas. The grass swales, with shallow longitudinal gradients, slope towards the lowest point in the northeast. Grass swales help in increased surface infiltration and reduction in the sediments transported from the site. The kerb edge is detailed to direct the road runoff to these grass swales.
Chapter 5
Study of performance of existing building Other features Soil Conservation Existing landscape preserved and protected during construction. Limited area disturbed for construction activity. Areas with little or no vegetation and prone to erosion are stabilized by grassing, planting. Construction of silt fence, temporary grass swales, sedimentation basins, dust fence, protection of existing trees, followed as temporary measures for preventing soil and wind erosion during construction. Paved Areas and Vegetation Green areas are optimized to minimize paving. Use of pervious paving (gravel paths, grass pavers in parking), shading by louvers, existing and proposed vegetation over paved areas including roads helps to minimize the heat is land effect and also reduces the imperviousness of the site. Design of green areas is on an ecological rather than horticultural basis. A careful selection of naturalized and exotic species is planted to provide a sustainable landscape, reducing the use of water required for irrigation by more than 50%. Treated grey water used for irrigation. Grass and exotic shrubs requiring maximum amount of water for irrigation are limited to areas adjoining the buildings, grass swales, courtyards, entrances and small gardens near building.
CONCLUSIONS, SUGGETIONS Why GRIHA is more suitable than LEED in Indian context? LEED originated in the US, where basic construction norms and regulations such as construction worker safety, health & sanitation, minimum visual and thermal comfort are strictly complied with and without which construction approvals are not granted. LEED·s criteria assumes adherence to these basic codes and norms which may not be mandatory in India. On the other hand, GRIHA requires compliance with certain basic codes and norms prescribed by Indian standards such as the National Building Code (NBC), Energy Conservation Building Code (ECBC) and Bureau of Indian Standards (BIS), by selectively enforcing a few of these even though they may not be required by local development authorities for construction approvals. This approach ensures that these basic standards are also achieved along with environmental performance. A few of these basic standards in GRIHA include: Minimum level of sanitation/safety facilities for construction workers. Minimum natural day lighting requirements as per the NBC Minimum artificial lighting requirements as per the ECBC Urban context consideration
CONCLUSIONS, SUGGETIONS The plus points to promote GRIHA in India. Focus on non-airconditioned buildings: Traditionally, buildings in India have been designed with climate sensitivity in mind, trying to achieve thermal comfort for occupants without the use of mechanical interventions. GRIHA·s criteria provide more credit to climate responsive architecture anddesign to minimise energy use compared to LEED criteria.
Mandatory minimum requirement for solar energy: Backed up by MNRE subsidies, GRIHA requires, as a mandatory criterion, 1 per cent of the total energy needs for the development to be sourced from solar power.
Quality of ground water in India is not guaranteed as in other countries such as the U.S. GRIHA mandates the treatment of ground water for drinking and irrigation to the norms as prescribed by ISI.
Noise pollution: LEED does not evaluate acoustical comfort. GRIHA requires adherence to Central Pollution Control Board (CPCB) and NBC guidelines for acceptable outdoor and indoor noise levels. All of the above make GRIHA very comprehensive. .
CONCLUSIONS, SUGGESTIONS Incentives and subsidies by the MNRE: Buildings that achieve a minimum of 3-star GRIHA rating will be eligible for reimbursement of registration fees and cash incentives to their architects and consultants. Financial support for solar PV installations is also being offered. In addition , the MNRE is also offering Rs.50 lakhs to municipal corporations and Rs.25 lakhs to other urban local bodies that announce rebate in property tax for GRIHA rated buildings and make it mandatory for new government and public sector buildings to be rated under GRIHA Over the years, LEED has achieved global recognition as the rating system of choice for eco-friendly development. On the other hand, the availability of MNRE incentives and its greater relevance to the Indian context makes GRIHA an attractive option to government, quasi-government and private corporations with a predominantly Indian customerbase. FUTURE OF GRIHA The next steps would be specific ratings for existing buildings and for low-income and rural housing developments that would be formulated in collaboration with organisations such as the HUDCO. The possibility of relaxation of FAR regulations for building developments with a GRIHA rating is also being weighed.
Thank you
