CIB TG66 India Webinar 20120628 Priyanka Kochhar Energy efficiency in buildings


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2 pm – 4 pm Indian Standard Time

- Introduction, by Jean Carassus, CIB TG66 Coordinator, Professor at Ecole Nationale des Ponts et Chaussées, Paris Institute of Technology, mandated by Centre Scientifique et Technique du Bâtiment (France).
- The Implementation of Energy Efficient Buildings’ Policy in India- by Priyanka Kochar, Programme Manager, Sustainable Habitats Division, The Energy and Resources Institute, New Delhi.
- Beyond the Building: Energy Efficient Surrounding is Future of India, by Dr Mahua Mukherjee, Assistant Professor, Department of Architecture & Planning, Indian Institute of Technology, Roorkee.
- Conclusion by Peter Wouters, CIB Marketing and Communication Chair, Director at Belgian Building Research Institute (BBRI, Belgium),


CIB Task Group 66 is setting up several meetings to capitalize high level information on "THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS POLICIES IN 5 CONTINENTS".
The first event was an International Seminar organized in Brussels. It was dedicated to the European policy (four presentations), the action of three international organizations (UNEP-SBCI, IEA, WBCSD) and the policies of four countries: Brazil, China, South Africa and the USA.
The second event was an Internet Session dedicated to Europe, with five presentations from Belgium, France, Germany, Netherlands and Poland.
The third event was an Internet Session dedicated to North America, with five presentations from Canada, Mexico and the USA.
The fourth event was an Internet Session dedicated to South America, with five presentations from Argentina, Brazil, Chile, Uruguay and Venezuela.

To listen to registered conferences and see presentations from those events, visit

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CIB TG66 India Webinar 20120628 Priyanka Kochhar Energy efficiency in buildings

  1. 1. CIB Task Group 66 Web Session July 2012Implementation of energy efficient buildings policies:an introduction to the Indian scenarioMs. Priyanka Kochhar, Fellow, The Energy and Resources Institute28th June 2012, TERI, New Delhi, India
  2. 2. Construction Counts for Climate In 2030, share of buildings related emissions will stay at approximately 1/3 of energy related CO2 emissionsCO2 emissions including through use of electricity, A1B ScenarioSource: IPCC 4th Assessment Report
  3. 3. Construction Counts for Climate Key part of the problem: buildings Key part of the solution: buildingsSource: Baltzell 2009, UNEP FI Property Working Group Source: IPCC 4th Assessment Report
  4. 4. For India- building sector offers mitigation benefitsat net negative costs ……. … Buildings Industry Agriculture Energy Forestry Waste Transport supplyEstimated potential for GHG mitigation at sectoral level in 2030 (economies in transition)Source: IPCC 4th Assessment Report
  5. 5. Policy implementation in India State level Municipal bodies Corresponding agencies for Central Ministries/ Agencies Ministries/ Agencies Housing BoardsCentre Development Authorities ….. … … ….. …
  6. 6. Solar buildings program for energy efficient buildings Ministry of New and GRIHA- national building rating system (partly mandatory) Renewable Energy Solar cities programme Incentives for integration of renewable energy & GRIHA Bureau of Energy Energy Conservation Building Code (voluntary) Efficiency, Ministry of Appliance labelling (partly mandatory) Power Star rating programme for existing buildings (rates commercial buildings Central level on energy performance) Environmental Clearance (Mandatory)Ministry of Environment Resource (energy, water) efficiency integral part of clearance & Forests ECBC mandatory National Mission on Sustainable Habitats Ministry of Urban • energy efficiency in buildings Development • management of solid waste • accelerating modal shift to mass transport Central Public Works Mandatory to comply with GRIHA Department/ Revised specification, schedules and plinth area rates Thiruvananthapuram Municipality State / Pimpri Chinchwad Partly mandatory to comply with GRIHAMunicipal Corporation, Incentives for GRIHA Maharashtra
  7. 7. Link between the Centre and State:roles and view points Implementation- no penalties for non-compliance The system works in silos Perceptions – Cost Interpretation of codes and standards – Flawed and old – Lack of integration and uniformity – Lack of clarity on application domain (e.g ECBC does not talk about residential buildings)
  8. 8. Positively…
  9. 9. Environmental Kuznets curve:the path for India
  10. 10. India- current policy scenarioOBJECTIVES OF EEB POLICY INSTRUMENTSPOLICIES • Control & regulatory• Diminish energy instruments consumption • Fiscal instruments and• Reduce CO2 emissions incentives• Increase renewable • Economic and market- energy based instruments • Support, information and voluntary action
  11. 11. Mechanisms to implement EEB policies• Codes – National Building Code 2005 – Energy Conservation Building Code 2007• Rating systems – Green Rating for Integrated Habitat Assessment (GRIHA): MNRE*-TERI initiative – Leadership in Energy and Environment Design (LEED): CII# initiative – Eco Housing: Pune Municipal Corporation initiative – Star labeling for existing buildings: Bureau of Energy Efficiency (BEE), MoP** initiative• Energy auditing – Identification of Energy Conservation Opportunities (ECO) for existing facilities – Quantification of energy use and misuse through instrumented measurements – Model analysis for suggested improvements – Implementation of the best solution• Benchmarking – Appliance labeling – For hospitals, office & hotel buildings: BEE- USAID ECO III initiative• Performance evaluation: to ascertain energy performance – Energy audit for existing buildings – Software analysis for new buildings* Ministry of New and Renewable Energy, Government of India# Confederation of Indian Industry**Ministry of Power, Government of India
  12. 12. Convergence is crucial to effectiveimplementation and mainstreaming
  13. 13. A point in case for new buildings: GRIHA
  14. 14. GRIHA a TERI-MNRE implementation initiative for new buildings CPWD adopts TERI Retreat TERI- GRIHA ECBC GRIHA Towards market transformation Capacity building 2000 2005 2007 2007 2009 2010 2011 2011…2000 2003 2008 2009 2011 2012 SVA GRIHA Product catalogue Setting up of Advent of LEED: CII- ADaRSH GRIHA Over 100 audits Sorabhji Godrej Green adopted by Business Centre, NMSH PCMC Hyderabad- Platinum Rated
  15. 15. GRIHA-Green Rating for Integrated Habitat Assessment(for new construction) enables achievement of all key policy initiatives andenables market transformation Tool to facilitate Matreials and design, construction, construction technology operation of a green 9% Site Planning building ,and in turn 5% 17% ….measure “greenness” of a Energy (end use) and Renewable building in India 15% Energy 17% Water Waste 37% Management Health and well being What gets measured gets managed
  16. 16. Salient features of GRIHA: Versatile rating systemBuilding types Commercial Residential Institutional Hospitals Hotels Any building as long as its not a factory building5 climatic zones Hot – Dry Warm – Humid Composite Temperate Cold
  17. 17. Salient features of GRIHA Climate specific energy performance indices for various building typologies (defined in kWh/sqm/year) Mandatory compliance with Energy Code Separate rating criteria for air conditioned and non air conditioned spaces Upper limit of window wall ratio mandatory to be met Window solar heat gain limit specified (mandatory) Adaptive comfort encouraged to be followed Daylighting mandatory 1% connected load of space conditioning and lighting to be met through RE
  18. 18. Impact of GRIHA • 30% to 40% reduction in cost with negligible impact on project cost • Resource use optimisation through design – 30%-70% energy consumption reduction – 50%-60% water consumption reduction • Implementation of good practice on site • Integration of renewable energy – Estimated 9 MW of SPV and 2000 kl SWH systems and full compliance with ECBC (for 10 mn sq m) – 5-30% of lighting energy consumption or its equivalent met through RE – Outdoor lighting on RE – Waste to energy – 20-70% of water heating needs met with solar water heating (also in sync with ECBC requirement for threshold value) • Influencing and implementing policy Optimization of energy use through solar passive building design &ECBC compliance
  19. 19. Station cum commercial complex for DelhiMetro Rail Corporation(16 hour /day use) Tonnage of air conditioning brought down from 1500 TR to 875 TR Saving of approximately USD 650,000 in capital cost reduction only
  20. 20. 200kwhr/sq 45 lpd m/annum 100kwhr/sq 31.5 lpd m/annum • Passive architectural • Low flow fixtures design • Daylight integration • Shaded windows • Roof insulation • RE integration • Solar water heatersTypical office building- 8 hr use 30% - 50% reduction in energy consumption compared to GRIHA benchmarks 40 - 65 % reduction in building water consumption compared to GRIHA base case At no/negligible incremental cost
  21. 21. Suzlon One Earth Campus, Maharashtra Visibility of green building through implementation of RE Installed 13.44kWp of SPV & 18 windmills @4.75 kW each Generate approximately 250000 units of electricity through RE Energy consumption reduction compared to GRIHA benchmarks: 47% GRIHA Rated
  22. 22. Police Training School, Turuchi, Maharashtra Visibility of green building through implementation of RE 21.5% of internal lighting annual energy requirements met by renewables. 28,105 kWh electricity generated from 1kVA of solar power and 13 windmills with power capacity of 5.5kW each. Energy savings compared to GRIHA benchmark: 31% GRIHA Rated
  23. 23. Initiatives of the Indian Green Building Council
  24. 24. Indian Green Building Council (IGBC) initiatives(voluntary) • 7 variants of LEED and IGBC rating system (homes, townships, new construction, SEZs, factories, core and shell) • 1.19 bn sq ft registered • 254 rated projects
  25. 25. Incentivising EE housing through low interest consumer loans
  26. 26. TERI study on innovative financing for EE housing KfW • KfW to provide a credit line to NHB of up to Euro 50 million Refinance NHB Project Finance • Promote Energy Efficient Housing Primary lending Public agencies institutions (PLIs) Private developers • Refinance or Direct Finance mechanism End-users • Designing for implementation of promotional programme loan vending for EE new housing
  27. 27. Energy Efficient housing: Application of solar passive design inconjunction with select measures from the Energy ConservationBuilding Code Base Case parameters • FALG brick wall with Assumptions EPIbase : EPIbase : cement plaster on both sides • People- 100% occupancy • RCC roof for 24 hrs 152 kWh/m2/annum 152 kWh/m2/annum • 6mm single clear glass • Lighting- 100% for 18hrs with MS frame -22hrs • Incandescent lamp, T-12 • AC- Living room-12hr- • one-star window AC in 20hrs bedrooms and living room • AC-Bedroom-13hr -14hr -21hr-6hr ECBC compliant EPIECBCenvelope EPIrecommended • Wall insulation : • Roof insulation with case 119 reflective coating •Single glazed Window with 111 kWh/m2/annum kWh/m2/annum SC compliant with ECBC • CFL, T-5 Payback period: 4- • five-star rated ACs in bedrooms and living room 7 years EPIeff.light_fivestar Recommended case EPIeff.light_fivestar eAC : eAC : • Wall shading • Sakora roof with reflective 86 kWh/m2/annum coating • ECBC compliant window 79 kWh/m2/annum • CFL, T-5 • five-star rated Acs in Annual energy savings: Annual energy savings: bedrooms and living room 73 kWH/m2 66 kWh/m2
  28. 28. Thank You