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SOLAR SOLAR / GREEN BUILDINGS : / GREEN BUILDINGS :
MINISTRY’S PROGRAMMESMINISTRY’S PROGRAMMES
Dr. Arun K Tripathi
Director
Ministry of New and Renewable Energy
NEW DELHI
PerspectivePerspective
� Construction activity forms a major part of any development activity
� Total construction activity (public and private inv estment) accounts for about 50% of the total outlay of 5 –yr plan� 50 % of this goes in buildings
� About 50% of this is housing which is about 12.5 % of five year plan outlay
� Buildings are major consumers of energy in their construction, operation and maintenance
� Globally, about 40% of energy consumption is estima ted to in buildings.
� In India, energy demand is increasing rapidly, due to increased urbanization and with more affordability o f the people
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Electricity consumption in Commercial sector is increasing
Commercial sector
Residential sector
Energy Consumption in Commercial and Residential Sectors
Energy Conscious Architecture
It includes the following� Use of solar passive concepts including daylight features in
building design and operation� Use of eco-friendly and less energy intensive building
materials� Integration of renewable energy technologies� Use of energy efficient appliances� Conservation of water/ waste water recycling/rain water
harvesting
Pioneering work has been done in India. However, we need to adopt it on a widespread level to make impact which is noticeable.
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Solar/ Green Buildings
• Designed to provide internal comfort with much less consumption of conventional fuel; results in saving s of recurring and capital costs.
• Design depends on direction & intensity of sun & wi nd, ambient temperature, humidity etc. Different design s for different climatic zones.
• Key features: Orientation, double glazed windows, wi ndow overhangs, thermal storage walls/ roof, roof painti ng, ventilation, evaporation, day lighting, use of appr opriate construction materials having desired U-values and less embodied energy.
• Integration of solar water heating systems and sola r photovoltaic systems.
• Additional cost could be 5% to 10% with annual savi ngs of energy up to 30 to 40%. Payback periods could be 3 -4 years.
Climatic ZonesClimatic Zones
Climate Mean monthly temp (oC)
Relative humidity(%)
Hot and dry > 30 < 55
Warm and humid > 30 > 55
Moderate 25 - 30 < 75
Cold and cloudy < 25 > 55
Cold and sunny < 25 < 55
Composite When six months or more do not fall within any of the above categories
As per criteria of National Building Code, ‘Cold an d cloudy’ and ‘Cold and sunny’ have been grouped together.
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Climatic Climatic
Zones in Zones in
IndiaIndia
(as per (as per
NBC NBC
2005)2005)
ProgrammesProgrammes of the Ministryof the Ministry
� The Ministry has been promoting solar passive buildings for more than two decades through◦ Research and development
◦ Demonstration
◦ Developing technical literature and
supporting workshops, training programmes,
etc.
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ProgrammesProgrammes of the Ministryof the Ministry
� Total floor area: 610 m2 (Basement, 1, 2 & 3 floors & Attic).
� South window area : 162 m2.
� Solarium, sun-spaces, TAP collectors and thermal insulation on north wall & roof used.
� Total floor area: 1500 m2 (Basement, 1- & 2- Floors, Attic)
� South window area : 67 m2
� Double glazed windows
� Solar air-heating system installed
� Sunspaces and Trombe wall used.
Co-operative BankShimla
Him-UrjaBuildingShimla
Developments under Ministry’s Developments under Ministry’s
ProgrammesProgrammes
� Development of tools for architecture design and simulation (TADSIM) for solar passive buildings (IIT Bombay).
� A study on Energy Efficient Buildings in India (TERI)
� A manual of Solar Passive Architecture (SEC and IIT Bombay)
� Development of the course material on Solar Passive Architecture for inclusion in the curricula of Bachelor of Architecture (Council of Architects and IIT Delhi)
� Production of a set of two CDs entitled “Knowledge Bank for Sustainable Buildings” and “Energy Efficient Buildings in India” (TERI)
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Developments under Ministry’s Developments under Ministry’s
ProgrammesProgrammes
� Handbook on Energy Conscious Buildings (SEC and IIT Bombay)
� Establishment of solar calorimeter has been sanctioned to CEPT University, Ahmedabad for characterization of window glazings.
� Development of byelaws on energy efficient buildings and guidebook for architects and designers to facilitate amendment of model byelaws of MOUD.
ProgrammesProgrammes of the Ministryof the Ministry
� Ministry has been providing support for preparation of DPRs and construction of solar passive buildings
� Presently, the Ministry has an R&D Programme to support developmental activities in this area
� GRIHA is incentivized
� Capacity building and awareness generation programmes are supported.
� Awareness generation through development of web-based tools, e-learning modules is also planned.
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GRIHA Rating SystemGRIHA Rating System
� Buildings to be star rated based on evaluation duri ng pre-construction, building design and construction, and building O&M stages.
Points scored Rating50–60 One star61-70 Two star71-80 Three star81-90 Four star91-100 Five star
Financial Support from MNREFinancial Support from MNRE
� Seed funding for GRIHA Secretariat� 90% of the fee for projects rated 3-star having
built up area up to 5000 sq. m. and for projectsrated 4 star having built up area above 5000 sq. m.to be reimbursed by MNRE
� Registration-cum-rating fee is as follows:Project built up area Fee
<= 5000 sq. m. Rs. 3,14,000(Rs. 2,50,000 for registration + Rs 64,000 for evaluation)
> 5000 sq. m. Rs. 3,14,000 (Fixed cost for projects upto 5000 sq. m.)+ Rs. 3.75 per sq. m. over and above 5000 sq. m. built area
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Financial Support from MNREFinancial Support from MNRE
� Incentives to architects/ design consultants@ Rs. 2.50 lakh for projects upto 5000 sq. m. with minimum 3 sta rrating
@ Rs. 5 lakh for projects > 5000 sq. m. with minimum 4 star ratin g
� For organizing workshops and seminars forengineers, planners, builders, architects, consultants,housing financing organizations and potential users
� For compilation/documentation of case studies andother related information about green buildings
� Promotional activities – upto Rs. 2 lakh� Incentives to Urban Local Bodies /Awards� Financial support is also available for integration of
solar water heating systems, roof top SPV systems,and other renewable energy systems.
Impact Potential
� The average energy use (lighting and HVAC) fortypical commercial building is 200 kWh/sq.meter/year.
� Mandatory enforcement of ECBC may reduceenergy use by 30-40%, which means to 120-160kWh/sq. meter/year.
� Further improvements by better envelop designingand integration of solar energy devices/ systemswould bring down energy use up to 80 kWh/sq.meter/year.
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Capacity Building and Awareness
Generation
� Programmes Conducted so far
◦ 6 Programme by TERI for CPWD (Delhi-2, Bangalore-1, Hyderabad-1, Kolkata-1, Mumbai-1)
◦ Training programme by TERI for trainers and evaluators (Delhi, September)
◦ 5 Training programme by SEEM (Tripura, Hyderabad, Chhattisgarh, Ahmedabad, Coimbatore)
◦ One programme by IIA at Delhi.
Capacity Building and Awareness Generation
� Programmes Planned
◦ Programme for various government construction agencies
(Delhi 11 Dec)
◦ 1 programme by IIA (Chandigarh – 16 January)
◦ Training programme for trainers and evaluators by TERI
(Delhi 5-6 Jan )
◦ Training programme for Energy Simulation by IIIT
Hyderabad, CEPT, and MNIT, Jaipur (Jaipur-30-31 Jan,
Ahmedabd 12-13 Feb, Hyderabad 6-7 March)
◦ Proposal from UP is received for four workshops at
Ghaziabad, Agra, Varanasi and Lucknow) (NEDA has
discussions with TERI)
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Capacity Building and Awareness
Generation
� Preparation of Material
◦ Report on byelaws and guidelines finalized and sent to M/o
UD.
◦ Manual for GRIHA is under preparation by TERI
◦ Awareness generation web-link is under development and
will be ready shortly
◦ IIIT Hyderabad has shown interest in developing web-based
3D- building simulation tool. Some information already
available at www.vibyor.com
Recent InitiativesRecent Initiatives
� Launch of Jawaharlal Nehru National Solar Mission,which unveils an enabling policy framework fordeployment of 20,000 MW of grid connected solar powerby 2022, and installation of 100 MW of smaller plants and200 MW capacity equivalent of off-grid solar systems forvarious applications.
� To exempt first 100 Government / public sector buildingsfrom paying the registration-cum-rating fee in advance atthe time of registration under GRIHA and to release100% fee for such cases to GRIHA Sectt. as follows:
� Government decision to make all new buildings ofCentral Govt/PSUs compliant with requirements of atleast 3-star rating, however, efforts to be made for higherrating.
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Solar Water Heating Solar Water Heating SystemsSystems• Soft loans @
• 2% to domestic users• 3% to institutions, and• 5% to commercial users
• 30 banks operating the scheme.• Capital subsidy equivalent to upfront interest subsidy
@ Rs. 1750 per square meter of solar collector area forinstitutions & @ Rs. 1400 for commercialestablishments. Release through SNAs. In specificcases through MCs.
• Direct release to Govt Deptts./ PSUs if installed forown use. Includes ESCO mode of implementation.
• For housing complexes @ Rs. 1900/ sq. m. ofcollector area
Participating Participating Banks/FIs Banks/FIs
Public Sector Banks1. Canara bank 2. Bank of Maharashtra3. Union bank of India4. Syndicate bank5. Punjab & Sind bank6. Punjab national bank7. Andhra bank8. Vijya bank9. Dena bank10. Bank of India11. J & K Bank
12.Oriental Bank of Commerce
NBFCs13.IREDA
14. Nagarjuna Credits & Capital Ltd
15. SREI Infrastructure Finance Ltd
16. Bhonsale Leasing Finance Co.
17. Madhya Pradesh Financial Corp.
Private Banks18. Ratnagar bank Ltd19. The United Western Bank Ltd.
Rest are Co-operative banks
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Roof top SPV Systems
� May be installed in commercial establishments, institutions, government buildings, shopping malls, hotels, hospitals, industry and housing complexes e tc.
� These systems could either be grid connected or without grid connectivity
� System capacity covered is 25–100 kWp. Smaller capacity systems (not less than 10 kWp) to be considered on case-by case basis
� Financial support � @ Rs 100/ Wp, subject to maximum of 40% of the syst em cost to non-profit
making organizations� @ Rs 75/ Wp, subject to maximum of 30% of the syste m cost to profit making
organizations who can avail accelerated depreciatio n
� Saves 64% energy
� Saves 82% water
� Produces zero waste
� Initial cost increases by 12%
� 10% saving in total cost
� Environment & Earth Science Building , IIT Kanpur
� Hitkarini college, Jabalpur
� TCI Building, Haryana
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Solar chimneySolar chimneyTERI Retreat, Gurgaon
BSBE building, IIT KanpurITC green center, Gurgaon
CII excellence center,
Bangalore
A Solar Housing Complex at Kolkata
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Another View of a Single House
Magarpatta City, Pune
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Another view of housing complex in Magarpatta City, Pune