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Building Assessment Systems and Case studies

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  2. 2. • Green building - green construction-sustainable building • Uses process that is environmentally responsible and resource-efficient • Focuses on efficient use of energy, water, and other resources • protecting occupant health and improving employee productivity INTRODUCTION : GREEN BUILDING • to reduce their carbon footprint and actually lend a helping hand to the environment • to make the earth more sustainable • to actually help to sustain the environment without disrupting the natural habitats around it Primary School & Sport Hall / Chartier-Dalix architects Rupe house
  3. 3. • Raises the quality and standard of buildings • inspires innovation • improves productivity • helps in electricity utilities by reducing peak demand • raise awareness of what constitutes a high quality environment • can trade energy • presents exciting new challenges for environmental stewardship • shows respect for the people who use them • encourages learning about what works and what doesn’t NEED OF GREEN BUILDING Energy consumption :
  4. 4. • Environmental Issues & Building Design • Net Zero Energy Buildings • Resource Use & Buildings • Green BuildingCosts • New vs. Existing Building • Occupant Comfort GOALS OF GREEN BUILDING Sustainability isALWAYS local (context specific).The minute we start importing designs, technologies, products or materials, the environmental impact increases multi-fold, defeating the very purpose of designing a green building
  5. 5. BENEFITS OF GREEN BUILDING Environmental Benefits: • Reduce wastage of water • Conserve natural resources • Improve air and water quality • Protect biodiversity and ecosystems Social Benefits: • Improve quality of life • Minimize strain on local infrastructure • Improve occupant health and comfort Economic Benefits: • Reduce operating costs • Improve occupant productivity • Create market for green product and services
  6. 6. GRIHA (Green Rating for Integrated Habitat Assessment) GRIHA - Sanskrit word meaning – ‘Abode’ • An innovative tool for sustainable development by the United Nations. • A tool for implementing renewable energy in the building sector by ‘The Climate Reality project’- an organization founded by Mr. Al Gore; and UNEP-SBCI has developed the “Common Carbon Metric” (kWhr/sq m/annum), for international building energy data collection -based on inputs from GRIHA (among others)  NAME: GRIHA  COUNTRY: INDIA  ESTABLISHED: 2007
  7. 7. OBJECTIVES OF GRIHA : • minimize a building’s resource consumption, waste generation, and overall ecological impact • evaluates the environmental performance of a building holistically over its entire life cycle, thereby providing a definitive standard for what constitutes a ‘green building’ • based on accepted energy and environmental principles, seeks to strike a balance between the established practices and emerging concepts • Reduced energy consumption without sacrificing the comfort levels • Reduced destruction of natural areas, habitats, and biodiversity, and reduced soil loss from erosion etc.
  8. 8. WHY CHOOSE GRIHA ? • To lower operating costs • For higher return on investment • For greater tenant attraction • For enhanced marketability • For productivity benefits • To reduce liability and risk • To build healthier places to live and work • For demonstration of Corporate Social Responsibility • For future-proofed assets • To gain competitive advantage
  9. 9. GRIHA PROCEDURE: • GRIHA assesses a building out of 34 criteria • Awards points on a scale of 100 • To qualify for GRIHA certification, a project must achieve at least 50 points Eligibility • Except for industrial complexes, all buildings – offices, retail malls, institutions, hotels, hospitals, health-care facilities, residences, and multi-family high-rise buildings – in the pre-design/design stage are eligible for certification under GRIHA • ADaRSH (Association for Development and Research of Sustainable Habitats) examine project documents to help project eligible for GRIHA rating and render requisite assistance for registration
  10. 10. GRIHA PROCEDURE: Registration Process : • Building project may register through the GRIHA website ( •For ease of adoption, registration should be completed at the onset of the project cycle •The registration process allows for access to essential information such as o Application forms o List of required submissions o Score points oThe weightage system and o Online documentation
  11. 11. GRIHA (Green Rating for Integrated Habitat Assessment) Evaluation Process : 1. Pre documentation stage – A team from ADaRSH along with the client’s Integrated Design Team meet and determine the points being targeted by the project 2. Post documentation stage – • All necessary proof through documents for the points targeted under various criteria is submitted • Evaluation by third party regional evaluators • To determine final rating that shall be awarded to the project
  12. 12. GRIHA (Green Rating for Integrated Habitat Assessment) The preliminary evaluation is done by a team of experts from ADARSH o Reviewing of the mandatory points and checking for compliance. The project is rejected if mandatory criteria are not complied with o Evaluation of the optional criteria and estimation of the total number of achievable points o All compliance documents are vetted through the appraisal process as outlined by GRIHA After the necessary documentation is uploaded, and systems commissioned on site, the building is evaluated and rated in a three-tier process • Evaluation report given to members of an evaluation committee : external experts in building and landscape design, lighting and HVAC design, renewable energy, water and waste management, and building materials • The members independently review and award points, a provisional GRIHA rating is awarded after evaluation of documents submitted
  13. 13. GRIHA - RATING CRITERIA Site planning A) Conservation and efficient utilization of resources Criterion 1 Site Selection 1 Criterion 2 Preserve and protect landscape during construction/compensatory depository forestation. 5 Criterion 3 Soil conservation (post construction) 4 Criterion 4 Design to include existing site features 2 Criterion 5 Reduce hard paving on site 2 Criterion 6 Enhance outdoor lighting system efficiency 3 Criterion 7 Plan utilities efficiently and optimize on-site circulation efficiency 3 B) Health and well being Criterion 8 Provide minimum level of sanitation/safety facilities for construction workers 2 Criterion 9 Reduce air pollution during construction 2 Building planning and construction stage (A) Conservation and efficient utilization of resources Criterion 10 Reduce landscape water demand 3 Criterion 11 Reduce building water use 2
  14. 14. GRIHA - RATING CRITERIA Criterion 12 Efficient water use during construction 1 Criterion 13 Optimize building design to reduce conventional energy demand 6 Criterion 14 Optimize energy performance of building within specified comfort limits 12 Criterion 15 Utilization of fly-ash or equivalent industrial/agricultural waste as recommended by BIS in building structures 6 Criterion 16 Reduce embodied energy of construction is reduced by adopting material efficient technologies and/or low-energy materials 4 Criterion 17 Use low-energy materials in Interiors 4 Criterion 18 Renewable energy utilization 5 Criterion 19 Renewable energy based hot water system 3 B) Recycle, recharge, and reuse of water Criterion 20 Waste water treatment 2 Criterion 21 Water recycle and reuse (including rainwater) 5 C. Waste management Criterion 22 Reduction in waste during construction 2 Criterion 23 EfficientWaste segregation 2 Criterion 24 Storage and disposal of wastes 2
  15. 15. GRIHA - RATING CRITERIA Criterion 25 Resource recovery from waste 2 D. Health and well-being Criterion 26 Use of low-VOC paints/adhesives/sealants 4 Criterion 27 Minimize ozone depleting substances 3 Criterion 28 Ensure water quality 2 Criterion 29 Acceptable outdoor and indoor noise levels 2 Criterion 30 Tobacco and smoke control 1 Criterion 31 Provide at least the minimum level of accessibility for persons with disabilities 1 3. Building operation and maintenance Criterion 32 Energy audit and validation Mandatory Criterion 33 Operation and Maintenance 2 4. Innovation Criterion 34 Innovation Points 4
  16. 16. GRIHA - OVERVIEW 800 Project being evaluated 78 Project registered
  20. 20. GRIHA (Green Rating for Integrated Habitat Assessment) Points achieved GRIHA Rating 50-60 61-70 71-80 81-90 91-100 The registration fee can be calculated based on the following formula Built-up area* Registration fee (excluding tax) <5000 m2 Rs.3,14,000 [Rupees three lakhs and fourteen thousand only] >5000 m2 (Rs.3,14,000) + (Rs.3.75 per m2 above 5000) Rupees three lakhs and fourteen thousand, plus Rupees three and seventy five paisa per square meter over 5000 (*Excluding basements) Fees Registration cum pre-certification fees for all the projects is INR 1, 00,000 (Rupees one lakh only) + service taxes. Evaluation
  21. 21. Project Leader (CPWD- ADG Mr. P.K.Gupta) Architectural Design: CPWD (Mr. R.K.Koshal) Landscape Design: CPWD (Mr. Sodhi) MEP Design: Spectral (Dr. P.C.Jain & Mr.S.Modi) Commissioning: SGS Interior Design: Kothari Associates Green Building Consultants: DPAP (Deependra Prashad, Neeraj Kapoor) Building Use : Office building Storey: Seven storey building with three basement A Paradigm of Self-Sufficiency: INDIRA PARYAVARAN BHAWAN • Location : Jor Bagh, Delhi • Site Area : 9565.13 Sqm • Total Built up Area : 19088 sqm • Ground coverage : 30% • Year of Completion : 2013
  22. 22. Introduction — Indira Paryavaran Bhawan • A project of ministry of environment and forests for construction of new office building • Based on the concept of Net Zero Building (NZEB), aims to be self-reliant in every aspect of its overall functioning as a sustainable structure
  23. 23. Architectural Concept • EffectiveVentilation By OrientatingThe Building E-W • Optimum IntegrationWith Nature Separating Out Different Blocks With Connecting corridors • A Huge Central CourtYard • Plan developed for direct pedestrian axis to East, North andWest Entrance without crisscrossing vehicles • Preserve the integrity of the green street
  24. 24. Towards Energy positive Approach • Provision of Solar Photovoltaic for Net Zero requirement also Shades the Roof • Photovoltaic Stepping towards the south side creating a strong agenda for the future for urban buildings on limited site areas
  25. 25. Towards Energy positive Approach • an initiative to mainstream Solar energy in urban areas as against coal and other non-renewables • first “Energy-Positive” - Urban - govt. building
  26. 26. Towards Energy positive Approach •More than 50% area outside the building is soft with plantation and grassing •circulation roads and pathways soft with grass paver blocks to enable ground water recharge Polymer plastic grids turn the usual asphalt fire tender road into a soft paved space Preservation of existing foliage by increasing the front setback
  27. 27. Towards Energy positive Approach Brown and beige coloured stone jaalis covering the vertical movement cores, thus eliminating the need to air condition these spaces The terrace garden utilizes preserved top soil extracted during the initial excavation
  28. 28. Utilizing lessons from nature & traditional buildings • Respecting the Eco-logic of the site, Building Punctures & jalis to AidCross Ventilation Environmental Response
  29. 29. Environmental Response Showcasing Biodiversity • Regenerative Architecture : balance of nature to connect outdoor greens • Showcase green bio diversity from Bio-climatic regions of Hot Dry, Composite,Warm Humid,Temperate, Cold Dry & Cold Cloudy
  30. 30. Site and Water Management Appropriate Shading from Summer Sun, while allowing in winter sun
  31. 31. Site and Water Management To Reduce landscape water requirement : •Drip irrigation •Use of native species of shrubs and trees having low water demand in landscaping •Low lawn area so as to reduce water demand •Reuse of treated water for irrigation Reduce water use in the building : •Low discharge fixtures •Dual Flushing cistern •Waste water treatment •Reuse of treated water for irrigation and cooling towers for HVAC •Rain water harvesting Efficient water use during construction •Use of curing compound
  32. 32. Energy Conservation Measures
  33. 33. Energy Conservation Measures Energy performance of building within specified comfort limits : • Reducing energy consumption (compared to GRIHA benchmarks) while maintaining occupant comfort • For achieving visual comfort : o Direct line of sight to the outdoor environment to envision glazing for building occupants for more than 90% of the occupied spaces o Avoiding Deep floor plates to create maximum day lighted spaces o Landscaping planned with native species and water body features in central court and all around the building
  34. 34. Energy Conservation Measures For achieving Thermal comfort : o All circulation spaces or passages were naturally ventilated / shaded / hot air Conditioned o Energy Efficient Chilled heat based Cooling system proposed together with condenser water cooling through ground pipes o Operable windows were proposed in conditioned areas to be able to utilize favorable outdoor conditions o Insulated Walls through using an integrated AAC + Rockwool combination together with high efficiency DGU’s and UPVC frames for the windows
  35. 35. Usage of Materials with Low Embodied energy Cool Roofs with high SRI tiles- high strength, hard wearing • AAC Blocks with fly ash for recycling and insulation • Fly ash based Plaster & Mortar • Stone and Ferro cement Jalis • Local Stone Flooring • Bamboo Jute Composite Doors and frames & flooring • High Efficiency Glass, high VLT, low SHGC & Low U-value, Optimized by shading • Light Shelves for bringing in diffused sunlight Terrazzo Flooring
  36. 36. Zero Energy: Energy Consumption on Site
  37. 37. Annual Energy Production & Consumption (MWh) • Extra Efficient (imported) Solar photo voltaic (SPV) Proposed (Terrace & Projections) : 800 kW • Energy produced by above : 14,91,000 kWh SPV Panels per year • Energy consumption for bldg. / year : 14,21,000 kWh Energy Positive Building
  38. 38. Performance Parameter Geothermal Cooling • Condenser water heat shall be rejected to earth by boring at suitable depth & sending hot water at 100°F (37.8° C) & back at 900 F (32.2° C) • Enormous water saving since no make up water is required • Make up water pumping & treatment cost get eliminated • Saves cooling tower fan energy.
  39. 39. Active Chilled Beams Working Principle Supply air flows through nozzles in small air jets which induce room air to flow around the coil & air gets cooled Design / Constructional / operational Advantages • Reduces power consumption • Easy Installation • No noise as no moving parts • Easy Air balancing activity • No filters maintenance • Save architectural space height
  40. 40. Net Zero Design IPB reduces energy requirement by 70% overall vis-à-vis conventional N-S Orientation – Limiting WWR – Insulation on wall & roof– Extensive Greenery to reduce heat load Maximizing Day lighting to reduce lighting loads Extremely Low Lighting Power Density – 5w/sqm Planning to Minimize AC loads (Keeping open atrium for cross ventilation, Non conditioned lobbies) Efficient HVAC with Screw Chillers, VFD’s, Chilled Beams Ground based heat exchange for Condenser Water Remote Computing - thin client servers Energy efficient appliances (5 star BEE) …. SPV’s for the remaining load
  41. 41. GRIHA : Evaluation S.No. Description Points Points Targeted CRITERION 1 Site Selection 1 Partly mandatory CRITERION 2 Preserve and protect landscape during construction/compensatory depository forestation. 5 Partly mandatory, if applicable 5 CRITERION 3 Soil conservation (post construction) 2 2 CRITERION 4 Design to include existing site features 4 4 CRITERION 5 Reduce hard paving on site 2 Partly mandatory 2 CRITERION 6 Enhance outdoor lighting system efficiency 3 3 CRITERION 7 Plan utilities efficiently and optimize on – site circulation efficiency 3 3 CRITERION 8 Provide, at least, minimum level of sanitation/safety facilities for construction workers 2 Mandatory 2
  42. 42. S.No. Description Points Points Targeted CRITERION 9 Reduce air pollution during construction 2 Mandatory 2 CRITERION 10 Reduce landscape water requirement 3 2 CRITERION 11 Reduce building water use 2 2 CRITERION 12 Efficient water use during construction 1 1 CRITERION 13 Optimize building design to reduce conventional energy demand 8 Mandatory 7 CRITERION 14 Optimize energy performance of building within specified comfort limits 16 Partly mandatory 16 CRITERION 15 Utilization of fly-ash in building structure 6 4 CRITERION 16 Reduce volume, weight, and time of construction by adopting efficient technology (for example ,pre-cast systems, ready mix concrete, and so on) 4 2 (may be) CRITERION 17 Use low-energy material in interiors 4 4 CRITERION 18 Renewable energy utilization 5 Partly mandatory 5 CRITERION 19 Renewable energy based hot-water system 3 3 CRITERION 20 Waste water treatment 2 2
  43. 43. S.No. Description Points Points Targeted CRITERION 21 Water recycle and reuse (including rain water) 5 3 CRITERION 22 Reduction in waste during construction 1 1 CRITERION 23 Efficient waste segregation 1 1 CRITERION 24 Storage and disposal of wastes 1 1 CRITERION 25 Resource recovery form waste 2 2 CRITERION 26 Use of low VOC paints/adhesives/sealants 3 3 CRITERION 27 Minimize ozone depleting substances 1 Mandatory 1 CRITERION 28 Ensure water quality 2 Mandatory 2 CRITERION 29 Acceptable outdoor and indoor noise levels 2 2 CRITERION 30 Tobacco and smoke control 1 1 CRITERION 31 Universal accessibility 1 1 CRITERION 32 Audit and validation Mandatory CRITERION 33 Operators and maintenance protocol for electrical and mechanical equipment 2 Mandatory 2 CRITERION 34 Innovation (beyond 100) 4 4
  44. 44. Location : Chennai Site Area : 32330 SqM Total Built up Area : 132598 SqM Air- conditioned Area : 132598 SqM Energy Consumption Reduction : 41.5% Renewable energy installed on site : 12600 KWp GRIHA final rating : 5 Stars Grand Chola, ITC Hotels Limited World’s Largest LEED Platinum Rated and India’s first GRIHA 5-Star rated Hotel
  45. 45. Principal Architect – SRSS Architects, Singapore Project Architect – CR Narayan Rao Energy Consultant – The Energy and Resources Institute (TERI) Sustainability Consultant – Environmental Design Solutions (EDS) Pvt. Ltd. Interior Designer – Wilson Associates, Singapore Lighting Consultant – Bo Steilber, Singapore MEP Consultant – Spectral Services Consultants Pvt. Ltd. (AECOM) Landscape Architect – Belt Collins International Pvt. Ltd., Singapore Commissioning Agent – SGS India Principal Contractors – Larsen & Tourbo Ltd. Grand Chola, ITC Hotels Limited
  46. 46. Strategies adopted to reduce the impact of the building on natural environment: Sustainable Site Planning: • Excavation and construction started after the monsoon season to prevent soil erosion and soil run off from • Top soil was preserved andre-used to raise the ground level • Service corridors are planned to cause minimum damage to the site and natural topography • Orientation -east west, but zoning done to reduce negative impact of bad orientation Existing trees preserved and transplanted Swimming pool inside the building
  47. 47. Reduction in water consumption (compared to GRIHA benchmark): •Reduction in building water consumption by low-flow fixtures : 50.7% •Water recycled and reused the complex :90% Strategies adopted to reduce the impact of the building on natural environment: Reduction in landscape water consumption by planting trees and shrubs and
  48. 48. • Thick stone and AAC block walls to reduce solarheat gain • 99% of living areas are day-lit and window to wall ratio restricted to 25% to reduce solar heat gain inside the building Passive architectural design strategies adopted in the building: Recessed windows Recessed windows to cut direct sun rays and glare inside
  49. 49. Reduction in energy consumption (compared to GRIHA benchmark) while maintaining occupant comfort: Passive architectural design strategies adopted in the building: For visual comfort Energy efficient artificial lighting design is compliant with ECBC (lights, space conditioners, appliances) controlled by I-pad to reduce energy consumption
  50. 50. Renewable energy technologies installed on site: • Installed capacity of wind energy : 2600 KWp • electricity generated annually : 27900000 KWh Þ Use of low-energy/green materials: Passive architectural design strategies adopted in the building: Water bodies and green vegetation creating a micro climate
  51. 51. COMPARISON GRIHA BREEAM LEED CASBEE Managing body MNRE Building Research Establishment(BRE) Us Green building Japan Sustainable Building Consortium (JSBC) Established 2007 1990 1998 2001 Country of origin India UK USA Japan Categories/Credits • Sustainable Site • Water Management • Energy optimization • Sustainable building materials • Waste Management • Health and wellbeing • Building operation • and maintenance • Innovation • Management • Health and well being • Energy • Transport • Materials • Waste • Land use and Ecology • innovation • Location and transportation • Sustainable sites • Water Efficiency • Energy and atmosphere • Indoor Environment quality • Innovation • Regional priority • Built environment quality • Indoor environment • Quality of service • Outdoor environment on site • Built load • Energy • Resources and material • Off-site environment
  52. 52. GRIHA BREEAM LEED CASBEE Building type Commercial, residential and Institutional, courts, educations, health cares, prison Office, retail, industrial units, Health care facilities, schools home, entire neighborhoods Residential and non- residential type of building Geographical focus Local, India and nearby area National National Global Certification cost <5000sq.m. -3,14,000 Rs >5000sq.m. -3,14,000 Rs + 3.75 per sq.m. above 5000 sq.m. $1290 each stage $1,250-$17500 $3570-$4500 Results Representation 50-60 is 1 star 61-70 is a 2 star 71-80 is a 3 star 81-90 is a 4 star 91-100 is a 5 star Pass, Good, Very Good, Excellent Certified (40%), Silver (50%), Gold (60 %), Platinum (80%) spider web" diagram, histograms and BEE graph Result Product Certificate Certificate Award letter, certificate and plaque Certificate and website published results COMPARISON
  53. 53. Bibliography