Arun K Tripathi

15 Pages·2010·5.27 MB·English

SSOOLLAARR // GGRREEEENN BBUUIILLDDIINNGGSS ::
MMIINNIISSTTRRYY’’SS PPRROOGGRRAAMMMMEESS
Dr. ArunK Tripathi
Director
Ministry of New and Renewable Energy
NEW DELHI
[email protected]
PPeerrssppeeccttiivvee
(cid:1) Construction activity forms a major part of any
development activity
(cid:1) Total construction activity (public and private investment)
accounts for about 50% of the total outlay of 5 –yr plan
(cid:1) 50 % of this goes in buildings
(cid:1) About 50% of this is housing which is about 12.5 % of five year plan outlay
(cid:1) Buildings are major consumers of energy in their
construction, operation and maintenance
(cid:1) Globally, about 40% of energy consumption is estimated
to in buildings.
(cid:1) In India, energy demand is increasing rapidly, due to
increased urbanization and with more affordability of the
people
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Energy Consumption in Commercial and
Residential Sectors
Commercial sector
Electricity consumption in
Residential sector Commercial sector is increasing
Energy Conscious Architecture
It includes the following
(cid:1) Use of solar passive concepts including daylight features in
building design and operation
(cid:1) Use of eco-friendly and less energy intensive building
materials
(cid:1) Integration of renewable energy technologies
(cid:1) Use of energy efficient appliances
(cid:1) 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 savings of
recurring and capital costs.
• Design depends on direction & intensity of sun & wind,
ambient temperature, humidity etc. Different designs for
different climatic zones.
• Key features: Orientation, double glazed windows, window
overhangs, thermal storage walls/ roof, roof painting,
ventilation, evaporation, day lighting, use of appropriate
construction materials having desired U-values and less
embodied energy.
• Integration of solar water heating systems and solar
photovoltaic systems.
• Additional cost could be 5% to 10% with annual savings of
energy up to 30 to 40%. Payback periods could be 3-4
years.
CClliimmaattiicc ZZoonneess
Climate Mean monthly Relative humidity
temp (oC) (%)
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 and cloudy’ and
‘Cold and sunny’ have been grouped together.
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CClliimmaattiicc
ZZoonneess iinn
IInnddiiaa
((aass ppeerr
NNBBCC
22000055))
PPrrooggrraammmmeess ooff tthhee MMiinniissttrryy
(cid:2) 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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PPrrooggrraammmmeess ooff tthhee MMiinniissttrryy
Co-
operati
ve
Him-Urja
Bank
Building
Shimla
Shimla
(cid:2)Total floor area: 610 m2(Basement, (cid:2) Total floor area: 1500 m2(Basement,
1, 2 & 3 floors & Attic). 1-& 2-Floors, Attic)
(cid:2)South window area : 162m2. (cid:2) Southwindowarea:67m2
(cid:2)Solarium, sun-spaces, TAP
(cid:2) Doubleglazedwindows
collectors and thermal insulation
(cid:2) Solarair-heatingsysteminstalled
on north wall & roof used.
(cid:2) SunspacesandTrombewall used.
DDeevveellooppmmeennttss uunnddeerr MMiinniissttrryy’’ss
PPrrooggrraammmmeess
(cid:1) Development of tools for architecture design and
simulation (TADSIM) for solar passive buildings
(IIT Bombay).
(cid:1) A study on Energy Efficient Buildings in India
(TERI)
(cid:1) A manual of Solar Passive Architecture
(SEC and IIT Bombay)
(cid:1) Development of the course material on Solar
Passive Architecture for inclusion in the curricula
of Bachelor of Architecture
(Council of Architects and IIT Delhi)
(cid:1) Production of a set of two CDs entitled “Knowledge
Bank for Sustainable Buildings” and “Energy Efficient
Buildings in India” (TERI)
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DDeevveellooppmmeennttss uunnddeerr MMiinniissttrryy’’ss
PPrrooggrraammmmeess
(cid:1) Handbook on Energy Conscious Buildings (SEC and IIT
Bombay)
(cid:1) Establishment of solar calorimeter has been sanctioned to
CEPT University, Ahmedabad for characterization of
window glazings.
(cid:1) Development of byelaws on energy efficient buildings and
guidebook for architects and designers to facilitate
amendment of model byelaws of MOUD.
PPrrooggrraammmmeess ooff tthhee MMiinniissttrryy
(cid:2) Ministry has been providing support for preparation of DPRs and
construction of solar passive buildings
(cid:2) Presently, the Ministry has an R&D Programmeto support
developmental activities in this area
(cid:2) GRIHA is incentivized
(cid:2) Capacity building and awareness generation programmesare
supported.
(cid:2) Awareness generation through development of web-based tools, e-
learning modules is also planned.
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GGRRIIHHAA RRaattiinngg SSyysstteemm
(cid:1) Buildings to be star rated based on evaluation during
pre-construction, building design and construction,
and building O&M stages.
Points scored Rating
50–60 One star
61-70 Two star
71-80 Three star
81-90 Four star
91-100 Five star
FFiinnaanncciiaall SSuuppppoorrtt ffrroomm MMNNRREE
(cid:2) Seed funding for GRIHASecretariat
(cid:2) 90% of the fee for projects rated 3-star having
built up area up to 5000 sq. m. and for projects
rated 4 star having built up area above 5000 sq. m.
to be reimbursed by MNRE
(cid:2) RPerogjiescttr abtuioiltn u-cpu amre-arating feFeeies as follows:
<= 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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FFiinnaanncciiaall SSuuppppoorrtt ffrroomm MMNNRREE
(cid:2) Incentives to architects/ design consultants
@Rs.2.50lakhforprojectsupto5000sq.m.withminimum3star
rating
@Rs.5lakhforprojects>5000sq.m.withminimum4starrating
(cid:2) For organizing workshops and seminars for
engineers, planners, builders, architects, consultants,
housing financing organizations and potential users
(cid:2) For compilation/documentation of case studies and
other related information about green buildings
(cid:1) Promotional activities – upto Rs. 2 lakh
(cid:1) Incentives to Urban Local Bodies /Awards
(cid:1) Financial support is also available for integration of
solar water heating systems, roof top SPV systems,
and other renewableenergy systems.
Impact Potential
(cid:2) The average energy use (lighting and HVAC) for
typical commercial building is 200 kWh/sq.
meter/year.
(cid:2) Mandatory enforcement of ECBC may reduce
energy use by 30-40%, which means to 120-160
kWh/sq.meter/year.
(cid:2) Further improvements by better envelop designing
and integration of solar energy devices/ systems
would bring down energy use up to 80 kWh/sq.
meter/year.
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Capacity Building and Awareness
Generation
(cid:2) 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
(cid:2) 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
(cid:2) 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
RReecceenntt IInniittiiaattiivveess
(cid:2) Launch of Jawaharlal Nehru National Solar Mission,
which unveils an enabling policy framework for
deployment of 20,000 MW of grid connected solar power
by2022, and installation of 100 MW of smaller plants and
200 MW capacity equivalent of off-grid solar systems for
variousapplications.
(cid:2) To exempt first 100 Government / public sector buildings
from paying the registration-cum-rating feein advance at
the time of registration under GRIHA and to release
100%feefor such cases toGRIHASectt.as follows:
(cid:2) Government decision to make all new buildings of
Central Govt/PSUs compliant with requirements of at
least 3-star rating, however, efforts to be made for higher
rating.
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