SOLAR / GREEN SOLAR / GREEN BUILDINGS : MINISTRY’S BUILDINGS : MINISTRY’S

PROGRAMMESPROGRAMMESDr. ASHVINI KUMAR

DirectorMinistry of New and Renewable Energy

NEW DELHIashvinikr@nic.in ashvini_sec@yahoo.com

BackgroundBackground Buildings are major consumers of energy in Buildings are major consumers of energy in

their construction, operation and maintenancetheir construction, operation and maintenance About 50% of global energy demand is About 50% of global energy demand is

estimated to be due to buildings. estimated to be due to buildings. Energy requirements in buildings are further Energy requirements in buildings are further

increasing in developing countries with rising increasing in developing countries with rising economy.economy.

In India, buildings accounts for 30-40% of total In India, buildings accounts for 30-40% of total energy consumption.energy consumption.

ENERGY CONSCIOUS ARCHITECTURE ENERGY CONSCIOUS ARCHITECTURE addresses these issues.addresses these issues.

Energy Conscious ArchitectureEnergy Conscious Architecture

It includes the followingIt includes the following Use of solar passive concepts including daylight Use of solar passive concepts including daylight

features in building design and operationfeatures in building design and operation Use of eco-friendly and less energy intensive Use of eco-friendly and less energy intensive

building materialsbuilding materials Integration of renewable energy technologiesIntegration of renewable energy technologies Use of energy efficient appliancesUse of energy efficient appliances Conservation of water/ waste water Conservation of water/ waste water

recycling/rain water harvestingrecycling/rain water harvesting

Pioneering been done internationally and in India. Pioneering been done internationally and in India. However, lot more is required to be done to adopt energy However, lot more is required to be done to adopt energy conscious architecture on a widespread level in the conscious architecture on a widespread level in the country.country.

Energy Efficient Energy Efficient Solar/ Green Buildings 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, construction material etc.

• Active solar thermal and photovoltaic systems can also be incorporated.

• Additional cost could be up to 10% with annual savings of energy up to 30 to 40%.

Climatic ZonesClimatic ZonesClimate 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 and cloudy’ and ‘Cold and sunny’ have been grouped together.

Climatic zones of

India

Programmes of the MinistryProgrammes of the MinistryThe Ministry has been promoting solar passive

buildings in the country for more than two decades through◦ Research and development activities◦ Demonstration of solar passive buildings◦ Supporting workshops, training programmes, orientation

courses, etc.◦ Supporting to bring out technical literature

Initial efforts (during mid-eighties) led to construction of solar passive buildings in three climatic zones of the country viz. Houses at IIT Delhi (Composite), Hostel at Jodhpur (Hot and dry), and Extension of a dispensary at Srinagar (Cold and cloudy).

Developments under Ministry’s Developments under Ministry’s R&D ProjectsR&D Projects

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)

Developments under Ministry’s Developments under Ministry’s ProjectsProjects

Production of a set of two CDs entitled “Knowledge Bank for Sustainable Buildings” and “Energy Efficient Buildings in India” (TERI)

Handbook on Energy Conscious Buildings (SEC and IIT Bombay)

Assessment study for energy supply of solar passive designed buildings in Himachal Pradesh (SEC and HPSCST&E)

National Rating System for National Rating System for Green BuildingsGreen Buildings

Building rating systems becoming popular for promotion of green buildings. In India, US based LEED in operation.

A National Rating System - GRIHA developed in association with TERI

Applicable to AC/ non-AC & intermittent cooled buildings & suitable for different zones of the country

Developed & modified through interactions with all stakeholders. Compatible with NBC 2005 & ECBC 2007

System to help in assessing predicted performance of buildings over their entire life cycle

Operates on 100 point marking system. 43 points pertain to energy & waste management.

National Rating System for National Rating System for Green BuildingsGreen Buildings

Buildings to be star rated based on evaluation during 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

The main aim of the programme is promotion of solar/ green buildings

It is a dynamic system taking cognizance of various feed backs from live projects through◦ Technical Advisory Committee, which is formed to

provide technical guidance on updation of GRIHA◦ National Advisory Council, formed to advice and give

directions to the National Rating System System is incentivized by the MinistryCommercial and institutional buildings including

housing complexes with minimum built area of 2500 sq. m. are covered

5 million sq. m. of built area targeted during 11th Plan

National Rating System for National Rating System for Green BuildingsGreen Buildings

National Rating SystemNational Rating SystemBenefits to OwnersBenefits to Owners

Reduced energy consumption without sacrificing the comfort levels

Reduced destruction of natural areas, habitats, biodiversity & reduced soil loss from erosion

Reduced air & water pollution with direct health benefits

Reduced water consumptionLimited waste generation due to recycling and reuseIncreased productivity, enhanced image &

marketabilityProjects need to be registered with GRIHA

Secretariat.

Seed funding for GRIHA Secretariat90% 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

Registration-cum-rating fee is as follows:

Financial Support from MNREFinancial Support from MNRE

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

Incentives to architects/ design consultants @ Rs. 2.50 lakh for projects upto 5000 sq. m. with minimum 3 star rating @ Rs. 5 lakh for projects > 5000 sq. m. with minimum 4 star rating For organizing workshops and seminars for engineers, planners, builders,

architects, consultants, housing financing organizations and potential usersFor compilation/documentation of case studies and other 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.

Financial Support from MNREFinancial Support from MNRE

Solar Water Heating SystemsSolar Water Heating Systems• 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 for institutions & @ Rs. 1400 for commercial establishments. Release through SNAs. In specific cases through MCs.

• Direct release to Govt Deptts./ PSUs if installed for own use. Includes ESCO mode of implementation.

• For housing complexes @ Rs. 1900/ sq. m. of collector area

Participating Banks/FIs Participating Banks/FIs

Public Sector Banks1. Canara bank

2. Bank of Maharashtra

3. Union bank of India

4. Syndicate bank

5. Punjab & Sind bank

6. Punjab national bank

7. Andhra bank

8. Vijya bank

9. Dena bank

10. Bank of India

11. J & K Bank

12.Oriental Bank of Commerce

NBFCs

13.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 Ltd

19. The United Western Bank Ltd.

Rest are Co-operative banks

May be installed in commercial establishments, institutions, government buildings, shopping malls, hotels, hospitals, industry and housing complexes etc.

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 system cost to non-profit making organizations @ Rs 75/ Wp, subject to maximum of 30% of the system cost to profit making organizations who can

avail accelerated depriciation

Roof top SPV SystemsRoof top SPV Systems

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

Solar chimneySolar chimneyTERI Retreat, Gurgaon

BSBE building, IIT Kanpur

ITC green center, Gurgaon

CII excellence center, Bangalore

A Solar Housing Complex at Kolkata

Another View of a Single House