IGBC Green Homes Version 2.0 Final Review Individual Home

Transcription

1 How to Interpret this Report Purpose The Indian Green Building Council (IGBC) has launched IGBC Green Homes Rating system to encourage green concepts and techniques. The rating system helps to address national priorities like conserving natural resources, demand side energy & water efficiency, adoption of renewable energy, management of consumer waste and occupant health & comfort. The Net Zero Home at Bhubaneswar project was evaluated according to this system and the Preliminary Rating is as follows: Environmental The report is organized into five environmental categories as defined by IGBC Green Categories Homes which include Site Selection and Planning, Water Efficiency, Energy Efficiency, Materials, Indoor Environmental Quality and Innovation and Design. Prerequisites are mandatory and must be achieved. Any clarifications on the prerequisites should be addressed immediately by the team. The credits under each category have been evaluated based on the documentation provided. The technical advise provides objective guidelines highlighting the clarifications required during the Final submission. The summary of evaluation is classified as under: Earned 63 Rejected 00 The applicant has provided the mandatory documentation which supports achievement of the credit requirements and associated points. For Version.0 the documentation of these credits is complete, and the points which are considered as achieved are designated as 'Earned'. The applicant has applied for a point in a particular credit, but has misinterpreted the credit intent or cannot substantiate meeting the requirements. The project has not demonstrated achievement of these credits. Rating Final Rating: Platinum Scores: Certified: Silver: Gold: 5-59 Platinum:

2 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 8 Site Selection and Planning (SSP) Points Available - 9 Y 0 Local Building Regulations SSP Mandatory Requirement 1 Ver.0 Requirements: The following approvals are required from the competent local Government authority: Approval of building plan (or) site plan Fit-for-occupancy certificate Final Review: The project team has submitted the Occupancy certificate issused by the BDA. This meets the intent of the Mandatory credit. The IGBC Green Homes Version Template and submitted narrative states that the project is located at Janla village which falls under the jurisdiction of Bhubaneswar Development Authority. The submittal includes Approved Building Plan, As built photos, Approval certificate from Bhubaneswar Development Authority, Ownership documents, Photographs at various stages of construction and an acknowledgement for the Fees paid for Occupancy Certificate. However more information is needed for awarding this credit. Technical Advice: Please submit the following: 1. Copy of the Fit for occupancy document issued by local Government authority. If the copy is not available submit the acknowledgement of the fees paid for Occupancy certificate( the submitted acknowledgement is a bank challan, we require an acknowledgement from the BDA) Y Soil Erosion Control SSP Mandatory Requirement Ver.0 Requirements: Adopt the following measures: Soil erosion control measures for pre-construction and during construction must conform to the best management practices highlighted in the National Building Code (NBC) of India, Part 10, Section 1, Chapter 4 Protection of Landscape during Construction and Chapter 5 Soil and Water Conservation Fertile topsoil to be stockpiled prior to construction, for reuse later Develop appropriate measures to address soil erosion, post occupancy

3 The IGBC Green Homes Version Template and submitted narrative states that the project has incorporated erosion control measures that conform to the best management practices highlighted in the National Building Code (NBC) of India. The project has submitted Erosion and Sedimentation Control (ESC) plan implemented onsite before and during construction. The pre-construction measures adopted on site Includes preserving the top soil and covering them under covers, Trees present on site have been preserved and incorporated in the design of the building During construction measures include Seeding and mulching to minimize the effect of wind erosion, Post construction measures adopted on site by Includes the reuse of the top soil in the vegetation The submittal includes a detailed landscape plan and photographs showing various ESC measures. This meets the intent of the mandatory requirement. 1 Basic House-hold Amenities SSP Credit 1.0 Ver.0 Requirements: For Individual Residential Unit: (1 point) Select a site with access to atleast five basic house-hold amenities, within a walking distance of 1 km from the building entrance. For Multi-dwelling Residential Units: ( points) Select a site with access to atleast seven basic house-hold amenities, within a walking distance of 1 km from the building entrance. (AND) Additionally, provide the following within the campus premises: Seating facility and toilets in the common area for service staff & visitors (minimum one toilet for every 50 dwelling units) Tot-lot for children The basic house-hold amenities include, but are not limited to: 1) Bank/ ATM; ) Beauty saloon; 3) Educational institutions (Pre-school, School, College, etc.,); 4) Electricity/ Water utility bills payment counter; 5) Electrical/ Plumbing services; 6) Grocery store/ Supermarket; 7) Hardware shop; 8) Laundry; 9) Medical clinic/ Hospital; 10) Park/ Garden; 11) Place of Worship; 1) Playground/ Jogging track; 13) Parmacy; 14) Post office/ Courier service; 15) Public library; 16) Restaurant; 17) Refueling station for automobiles; 18) Sports club/ Fitness center/ Gym; 19) Stationary shop; 0) Theater 3

4 . The IGBC Green Homes Version Template and narrative submitted states that the project has access to five basic amenities which are within a walking distance of 1 km from the building entrance. The amenities include Place of worship, Hotel, Bus stop, Post office and School Supporting documents includes a list of all the amenities along with their distance from the project site, photographs and a Google map highlighting the location of all the amenities. This meets the credit requirement. Natural Topography or Vegetation: 15%, 5% SSP Credit.0 Ver.0 The IGBC Green Homes Version Template and narrative states that project will ensure to retain at least 15 % of the site area. The calculation submitted indicates that out of the total site area of 30 sq.m an area of sq.m has vegetation that amounts to 6.4% of the total site area. The submittal includes landscape plan highlighting areas with vegetation and photographs showing the total vegetated area. This meets the credit requirement. Not Applicable Heat Island Effect, Non-roof SSP Credit 3.0 Ver.0 4 Heat Island Effect - Roof: 50%, 75% SSP Credit 4.0 Ver.0 Requirements: Use material with high solar reflectance and thermal emittance (such as, white/ light coloured china mosaic tiles or white cement tiles or high reflective coatings or other high reflective materials/ surfaces) to cover atleast 50% of the exposed roof areas. (AND/ OR) Provide vegetation to cover atleast 50% of the exposed roof areas. 4

5 Minimum Solar Reflective Index (SRI) values for different roof types are provided below: Table 1 - Solar Reflective Index (SRI) values for different roof types Roof Type Slope SRI Low-sloped roof < 1:6 78 Steep-sloped roof > 1:6 9 Points are awarded as below: Percentage of High Reflective Material/ Vegetation of the Exposed Roof Areas > 50% > 75% Points 4 The IGBC Green Homes Version Template and narrative submitted indicate that 99% of exposed roof areas i.e., 106 sq.m out of the sq.m are covered with high SRI roof tiles. The submittal includes cut sheets of the material used and also includes roof plans, Photographs, letter from the manufacturer indicating the SRI value of the tiles used. This meets the credit requirement Parking Facilities for Visitors Credit 5.0 Ver.0 Requirements: Resident Parking Not Applicable Provide parking for residents, to meet or exceed local bye-law requirement. Visitor Parking Option 1: For visitors, provide parking spaces as per local bye-law. (OR) Option : In places where local bye-law for visitor parking does not exist, provide parking for visitors equivalent to 10% of the parking area / spaces required for residents as per local bye-law 5

6 Electric Charging Facility for Vehicles SSP Credit 6.0 Ver.0 Not Applicable Requirements: Provide electric charging facilities to cater to atleast 5% of the total parking capacity, provided on site for residents (excluding visitor parking). 1 Design for Differently Abled SSP Credit 7.0 Ver.0 Requirements: Design the building/ campus to provide the following, as applicable, for differently abled people in accordance with the guidelines of National Building Code (NBC) of India. For Individual Residential Unit: (1 point) Easy access to the main entrance of the building Non-slippery ramps with hand rails on atleast one side Main entrance door with adequate width Uniformity in floor level for hindrance-free movement For Multi-dwelling Residential Units: ( points) Appropriately designed preferred car park space(s) having an easy access to the main entrance or closer to the lift lobby (one car park space for every 100 dwelling units) Easy access to the main entrance of the building(s) Non-slippery ramps with hand rails on atleast one side Braille and audio assistance in lifts for visually impaired people Uniformity in floor level for hindrance-free movement in common areas & exterior areas Rest rooms (toilets) in common areas designed for differently abled people (minimum one rest room for every 100 dwelling units. Walkways/ pathways with adequate width in exterior areas Visual warning signages in common areas & exterior areas The IGBC Green Homes Version Template and submitted narrative states that the project has provided easy access to main entrance, Ramp with Hand Railings have been provided for easy access to main entrance door. Also design provides adequate width and uniformity in floor level inside the residence for hindrance free movement. Supporting documents include floor plans and photographs showing all the facilities provided for differently abled. Basic Facilities for Construction Workforce SSP Credit 8.0 Ver.0 6

7 Requirements: For Individual Residential Unit: (1 point) Provide the following on-site basic facilities for construction workforce: Mobile/ Permanent toilet (atleast one toilet seat) First-aid facility Adequate drinking water facilities Personal protective equipment (by owner/ contractor) Dust suppression measures Adequate illumination levels in construction work areas. For Multi-dwelling Residential Units: ( points) Provide the following on-site basic facilities for construction workforce: Adequate housing to meet or exceed local/ labour bye-law requirement. Sanitary measures to meet or exceed local/ labour bye-law requirement (OR) provide atleast one toilet seat/ urinal for every 50 workers in any shift, whichever is more stringent. The sanitary measures should be provided separately for men and women. First-aid and emergency facilities. Adequate drinking water facilities. Personal protective equipment (by owner/ contractor). Dust suppression measures. Adequate illumination levels in construction work areas. Day care/ crèche facility for workers children Not Pursuing Final Review The project has withdrawn this credit. The IGBC Green Homes Version Template and narrative submitted states that the project has provided some basic facilities for construction workforce. The facilities include first-aid & emergency facilities, drinking water facilities, and personal protective equipment and dust suppression measures. The submittal includes copy of the construction contract agreement and photographs showing few of the facilities provided However, the submitted construction agreement does not highlight any facilities that will be provided to the workers. Also the submitted photographs are inconclusive and it shows construction workers without head gear and other protective equipments Technical Advice: Please provide the following: 7

8 1. A copy of the construction contract agreement highlighting facilities provided to the construction workers.. Photographs showing the measures implemented. 3. Site plan highlighting the location of all these facilities provided on site or off site. Green Home Guidelines Design & Post Occupancy SSP Credit 9.0 Ver.0 Requirements: Design Stage: Not Applicable Include green design features proposed, in the project brochures. Post-occupancy Stage: Publish green home guidelines providing information that helps occupants to implement green features. 8

9 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 7 Water Efficiency Possible Points - 11 Y Rainwater Harvesting, Roof & Non-roof WE Mandatory Requirement 1 Ver.0 Requirements: Provide rainwater harvesting system to capture atleast 5% of run-off volumes from roof and non-roof areas. The harvesting system designed should cater to atleast 1 day of normal rainfall* occurred in the last 5 years. In areas where the central/ state ground water board does not recommend artificial rain water recharge (or) if the groundwater table is less than 4 m, the projects are deemed to have shown compliance, without installing rainwater harvesting system. The IGBC Green Homes Version Template, narrative and calculations submitted indicates that the designed rainwater harvesting system will capture100% runoff from roof & non roof area. The calculations submitted indicate that the rain water run-off from roof and non roof surfaces. The total runoff from roof and non roof is Cu M. The project has provided collection tanks of 18 Cu M capacity. Supporting documents include storm water layout showing the location of rain water harvesting system, photographs of the collection tank and recharge pit and climatic data of the proposed project's location from Indian Metrological Department. This meets the mandatory requirements Y Water Efficient Plumbing Fixtures WE Mandatory Requirement Ver.0 Requirements: Select water efficient plumbing fixtures whose flow rates / capacities meet the baseline criteria. The baseline criterion is as below: Table 3 - Baseline Flow Rates / Capacity for Plumbing Fixtures in a Typical House-hold Fixture Type Maximum Flow Rate / Capacity Duration Daily Uses per Person/ Day Water Closets Health Faucet/ Bidet, Hand-held spray* 6 LPF (High flush) 1 Flush 1 3 LPF (Low flush) 1 Flush 4 8 LPM 15 Seconds 1 9

10 Faucet* 8 LPM 15 Seconds 8 Kitchen Sink* 8 LPM 15 Seconds 6 Showerhead* / Hand-held Spray* 10 LPM 8 Minutes 1 Source: Uniform Plumbing Code India, 008 * At a design pressure of 3 bar Final Review The project has submitted the narrative describing the various stratergies adopted. The submittal also includes cutsheets, purchase invoice and photographs of the installed flush and flow fixtures. This meets the intent of the mandaotry requirement. The IGBC Green Homes Version Template and calculations submitted in the template states that the project has used efficient plumbing fixtures (i.e. flush and flow) which meet the baseline. However more information is need to award this mandatory requirement. Technical Advice: Please provide the following: 1. The narrative is missing from the submittal. Kindly submit the narrative.. The cutsheet provided does not highlight the flow rates of the selected fixture. Kindly highlight the fixtures that have been purchased and the respective flow rates. 10

11 Landscape Design WE Credit 1.0 Ver.0 The IGBC Green Homes Version Template and calculations submitted indicate that out of a total landscaped area of 83.4 Sq m, of which Sq m is planted with drought tolerant plant species. This indicates drought tolerant species area is 40 % of the total landscaped area. A list of plant species used (drought tolerant species) in the project along with photographs and the landscape plan is also submitted. This meets the credit requirements. 1 Management of Irrigation Systems WE Credit.0 Ver 1.0 Final Review: As per the technical advice the project has submitted three efficient irrigation features and their respective photographs. This meets the intent of the credit. The IGBC Green Homes Version Template and narrative submitted states that the project has incorporated certain measures for an efficient irrigation system. These measures include, central shut off valve and drip irrigation. The submittal includes narrative describing the installed water efficient irrigation systems, manufacturers cut sheets of the installed systems and photographs of the irrigation systems. However few more information is needed to award this credit. Technical Advice: Please provide the following: 1. In order to achieve this credit three efficient irrigation feature has to provided, however the project has attempted only. Resubmit the credit with three necessary changes. 4 Rainwater Harvesting, Roof & Non-roof: 50%, 75% WE Credit 3.0 Ver.0 Requirements: Provide rainwater harvesting system to capture atleast 5% of run-off volumes from roof and non-roof areas. The harvesting system designed should cater to atleast 1 day of normal rainfall* occurred in the last 5 years. Points are awarded as below: 11

12 Rainwater Harvesting System to Capture / Recharge 50% from roof & non-roof areas 75% from roof & non-roof areas Points 4 In areas where the central/ state ground water board does not recommend artificial rain water recharge (or) if the groundwater table is less than 4 m, the projects are deemed to have shown compliance, without installing rainwater harvesting system. Points are awarded as below: Rainwater Harvesting System to Capture Points 10% from roof & non-roof areas 0% from roof & non-roof areas 4 Please refer to Preliminary review comments stated under WE Mandatory Requirement Water Efficient Plumbing Fixtures WE Credit 4.0 Ver.0 Requirements: Select water efficient plumbing fixtures whose flow rates / capacities meet the baseline criteria. The baseline criterion is as below: Table 3 - Baseline Flow Rates / Capacity for Plumbing Fixtures in a Typical House-hold Fixture Type Maximum Flow Rate / Capacity Duration Daily Uses per Person/ Day Water Closets Health Faucet/ Bidet, Hand-held spray* 6 LPF (High flush) 1 Flush 1 3 LPF (Low flush) 1 Flush 4 8 LPM 15 Seconds 1 Faucet* 8 LPM 15 Seconds 8 Kitchen Sink* 8 LPM 15 Seconds 6 Showerhead* / Hand-held Spray* 10 LPM 8 Minutes 1 1

13 Source: Uniform Plumbing Code India, 008 * At a design pressure of 3 bar Points are awarded as below: Water Efficient Plumbing Fixtures < 5% less than baseline criteria < 35% less than baseline criteria Points 4 Not Pursuing Final Review: The project has withdrawn this credit. Refer to Preliminary review comments stated under WE Mandatory Requirement. However, few more details are required. Technical Advice: Please address the technical queries sought under WE Mandatory Requirement. Waste Water Treatment and Reuse WE Credit 5.0 Ver.0 Not Applicable Water Metering Water Credit 6.0 Ver 1.0 Not Applicable 13

14 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 11 0 Energy Efficiency (EE) Possible Points - CFC-Free Equipment EE Mandatory Requirement 1 Ver.0 Requirements: Use CFC-free refrigerants in Heating, Ventilation & Air-conditioning (HVAC) equipment and Unitary Air-Conditioners installed in the building(s). Final Review: As per the technical advise the project team has submitted the necessary declaration letters from the owners. This meets the intent of the mandatory requirement. The IGBC Green Homes Version Template and narrative submitted states the project will be non air-conditioned. The submitted narrative also states that If air conditioners were to be used in future only CFC free refrigerants will be used in the air conditioners However, more details are required. Technical Advice: Please provide the following: 1. Declaration stating that no air-conditioning Units have been used in the project.. A declaration letter from the owner stating that only CFC Free Air conditioners will be used, should the owner decide to use air conditioners. Y Minimum Energy Performance EE Mandatory Requirement Ver.0 Requirements: The project can choose any one of the following options to show compliance for minimum energy performance: Option 1 Prescriptive Approach Option Performance Based Approach Note: 14

15 Projects having multiple building types must independently (i.e. each residential typology; eg: apartments, villas, club house, etc.,) meet the minimum energy performance criteria. Option 1 - Prescriptive Approach The prescriptive approach allows the project to comply with applicable criteria for all the parameters as outlined below: 1. Building Envelope: The project must ensure that the following building envelope measures meet the baseline criteria as outlined in Annexure I. Notes: Solar Heat Gain Coefficient (SHGC) * Window Glazing U-value (only if WWR > 30%)** Overall Roof Assembly U-value *Low SHGC value can be achieved through chajjas or efficient fenestration or a combination of both **Compliance for window glazing U-value should be shown only if window-towall ratio (WWR) is more than 30% Compliance for overall wall assembly U-value need not be shown for mandatory requirement. Lighting: The project must ensure that the interior, exterior, common and parking area lighting power densities meet the baseline values through building area method as outlined in Annexure I. Notes: Individual dwelling unit should show compliance for interior and exterior lighting, whereas Multi-dwelling units should show lighting compliance for all the areas which are in developer s/ owner s scope only. Compliance for interior, exterior, common and parking area lighting must be shown separately. Decorative lighting in respective areas should be considered for lighting power density calculations. The areas considered to calculate the LPD should be those areas which are illuminated by external lighting (not the entire exterior area). This LPD includes the power consumption of the complete fixtures, which includes lamps and ballasts. 15

16 3. Air-conditioning Systems: The project must ensure that the air-conditioning systems meet the baseline criteria as outlined below: Notes: Unitary air-conditioner(s) must be BEE minimum 3-star rated or equivalent (Or) Centralised air-conditioning system(s) must meet the baseline values as per Annexure - I Both Individual and Multi-dwelling units should show compliance for all the air-conditioning system(s) installed in the project, as per the owner s/ developer s scope For latest list of air-conditioners rated by BEE, please refer BEE website Minimum Efficiency Requirements for VRF Systems can be referred from ASHRAE Standard Option Simulation Based Approach The simulation (performance) based approach involves a building energy simulation and modeling. This approach allows the project to demonstrate compliance with the baseline criteria. The project must perform building energy simulation considering the following, as per annexure - I: Building envelope Lighting Solar heat gain coefficient (SHGC) Window glazing U-value Overall wall assembly U-value Overall roof assembly U-value Interior, exterior, common & parking area lighting, whichever is in owner s / developer s scope Air-conditioning Space heating Plug loads & Process loads The following comfort conditions should be considered for energy simulation: Indoor temperature set point for simulation should be 6 0 C for cooling systems & 0 0 C for Space heating systems all through the year. 16

17 Comfort conditions should be considered both for summer and winter. Final Review: The IGBC Green Homes Version Template and narrative submitted states that the project has chosen Option 1 Prescriptive Approach to meet the enhanced energy performance criteria. The energy conservation measures (ECMs) considered includes efficient wall, efficient roof, and reduced lighting LPD for interiors and exteriors and onsite renewable energy of Solar PV of capacity 3kW. The details are as below 1. Glazing: The project has proposed efficient glass with U value of 3.8 W / m² K against a baseline of 5.7 W / m² K. The submittal includes cut sheets and bills of purchases, floor plans and detailed calculations.. Wall Assembly: The project has proposed efficient walls with U value of 1.50 W / m² K against a baseline of 1.8 W / m² K. The submittal includes cut sheets and bills of purchases, floor plans and detailed calculations. 3. Roof Assembly: The project has proposed efficient roofs with U Value of 0.45 W / m² K against the benchmark of 0.5 W / m² K. The submittal includes cut sheets and bills of purchases, floor plans and detailed calculations. 4. Lighting Power Density: The narrative states that the project team is successful in reducing the LPD by 4% from baseline. The submittal include drawings of internal and external lighting layout, detailed LPD calculations of the interior and exterior lighting areas, photographs of the LEDs used in the projects. Prescriptive Approach Refer to Preliminary review comments stated under EE Credit Enhanced Energy Performance EE Energy Credit 1.0 Ver.0 Requirements: The project can choose any one of the following options: Option 1 Prescriptive Approach (Maximum 10 points) Option Performance Based Approach (Maximum 10 points) Note: 17

18 Projects having multiple building types must independently (i.e. each typology eg: apartments, villas, club house, etc.,) meet the minimum energy performance criteria to be eligible for Enhanced Energy Performance. Option 1 - Prescriptive Approach The prescriptive approach allows the project to comply with applicable criteria for the parameters as outlined below: 1. Building Envelope: The project should ensure that the building envelope measures meet the below criteria as outlined in Annexure - II. Solar Heat Gain Coefficient (SHGC) Window Glazing U-value Overall Wall Assembly U-value Overall Roof Assembly U-value Points are awarded as below for Building Envelope Measures: Building Envelope Measures Solar Heat Gain Coefficient (SHGC) Points for Individual Residential Units (Maximum 5 points) Points for Multi-dwelling Residential Units (Maximum 7 points) Window Glazing U-value 1 1 Overall Wall Assembly U-value 1 Overall Roof Assembly U-value 1 Note: SHGC can be achieved through chajjas or efficient fenestration or a combination of both. Lighting: Lighting Power Density (LPD): ( points ) The project must ensure that the interior, exterior, common and parking area lighting power densities are reduced by atleast 0% from the baseline values through building area method as outlined in Annexure -I. Points are awarded as below for Lighting Power Density (LPD): 18

19 Reduction in Interior, Exterior Common & Parking Area LPDs from Baseline Values Points > 0 % > 30 % 1 Lighting Controls: (1 point) All non-emergency exterior & common area lighting such as façade, pathways, landscaping, surface and covered parking, street lighting, staircases should have atleast one of the following: Day light sensor Occupancy/ Motion sensor Timer Notes: Individual dwelling unit should show compliance for interior and exterior lighting, whereas Multi-dwelling units should show compliance for all the areas which are in developer s/ owner s scope only. Compliance for interior, exterior, common and parking area lighting must be shown separately. Decorative lighting in respective areas should be considered for lighting power density calculations. Exterior areas illuminated by lighting only should be considered for lighting power density calculations. This LPD includes the power consumption of the complete fixtures, which includes lamps and ballasts. 3. Air-conditioning Systems: (Applicable for project only if 5% of the total regularly occupied spaces are air-conditioned, excluding kitchen) The project must ensure that the air-conditioning systems meet the enhanced criteria as outlined below: Unitary air-conditioner(s) must be BEE 5-star rated or equivalent ( points) (Or) Centralised air-conditioning system(s) must be efficient by atleast 10% from the baseline values as outlined in Annexure -I ( points) Points are awarded as below for Centralised Air-conditioning Systems: Efficiency in Centralised Air-conditioning Systems from Baseline Values Points 19

20 > 10 % > 0 % 1 Notes: For latest list of air-conditioners rated by BEE, please refer BEE website Minimum Efficiency Requirements for VRF Systems can be referred from ASHRAE Standard Space Heating Systems (1 point) (Applicable for project only if HDD** 18 is greater than 150) Notes: Unitary heat pumps must meet the baseline criteria, as per Annexure - I Non-electricity based heating system should have a minimum thermal efficiency of 70% **Degree day: The difference in temperature between the outdoor mean temperature over 4 hour period and a given base temperature **Heating degree day base 18 o C, HDD 18: for any one day, when the mean temperature is less than 18 o C, there are as many degree-days as degree Centigrade temperature difference between the mean temperature for the day and 18 o C. Annual heating degree-days (HDDs) are the sum of the degree-days over the calendar year Option Performance Based Approach The simulation (performance) based approach involves a building energy simulation and modeling. This approach allows the project to demonstrate improvements over the baseline criteria. Points are awarded based on energy cost percentage savings as detailed below: Option - : Points for Energy Performance Percentage Energy Cost Savings above Base case Points Individual Residential Unit Multi-dwelling Residential Units 3 % % 1 6 % 4 % 9 % 6 % 3 1 % 8 % 4 0

21 15 % 10 % 5 18 % 1 % 6 1 % 14 % 7 4 % 16 % 8 7 % 18 % 9 30% 0 % 10 The project must perform building energy simulation considering the following, as per annexure - I: Building envelope Lighting Solar Heat Gain Coefficient (SHGC) Window Glazing U-value, Overall Wall Assembly U-value Overall Roof Assembly U-value Interior, exterior common and parking area lighting, whichever is in owner s / developer s scope Air-conditioning Space heating Plug loads & Process loads The following comfort conditions should be considered for energy simulation: Indoor temperature set point for simulation should be 6 0 C for cooling systems & 0 0 C for Space heating systems all through the year. Comfort conditions should be considered both for summer and winter. Final Review: Please refer to the comments under EE MR 1

22 Preliminary Review The IGBC Green Homes Version Template and narrative submitted states that project has taken energy conservations measures, however it is not clear as to which compliance option has been selected by the project team. The submitted narrative focuses on the LPD reduction and the glazing values. The building envelope has not been mentioned. Technical Advice: Please provide the following: 1. Submit a narrative which clearly describes the compliance option selected and which clearly describes all the Energy Conservation measure employed. Rework on the submittal if necessary. 6 On-site Renewable Energy:.5 %, 5 %, 7.5 % EE Energy Credit.0 Ver.0 Final Review: The project team has provided the narrative stating that 100% of the energy needs of the project is met by the Wind-Solar Hybrid, the installed capacity of the Wind Solar Hybrid is 3 kw and the connect load of the project is 3 kw. The submittal includes electrical load calculations, Photographs and purchase invoices of the installed Windsolar hybrid. This meets the intent of the project. The IGBC Green Homes Version Template and narrative submitted states that the project has installed renewable energy system (Wind Solar PV hybrid) on the roof top. However the narrative is missing from the submittal. Technical Advice: Please provide the following: 1. Provide a narrative clearly stating the installed capacity of the system and the total net connected load of the project. 4 Solar Water Heating Systems: 5 %, 50% EE Energy Credit 3.0 Ver.0 Final Review: The project team has submitted the necessary narrative describing the feature of the solar hot water system. This meets the intent of the credit.

23 The IGBC Green Homes Version Template states that solar water heaters have been provided to cater to 100% of the project s hot water requirement. The calculations provided in the template indicate that required capacity of solar water heaters is 100liters per day (i.e. 0 liters/ person/ day) and the installed capacity is 100 liters per day. Supporting documents include cut sheets from the manufacturer, purchase invoice and photographs of the installed solar hot water system are also submitted. However more information is needed to award this credit. Technical Advice: Please provide the following: 1. The narrative is missing from the submittal. Provide a narrative clearly stating the feature implemented by the project team Requirement: Energy Saving Measures in Other Appliances & Equipment EE Energy Credit 4.0 Ver.0 Individual Residential Unit: ( points) Provide any four of the following with minimum BEE 4-star rated or equivalent appliances: Ceiling Fans Electric geysers Refrigerators Television Washing machines (Semi-automatic/ Automatic) Pumps & Motors* Other rated appliances * Where BEE star rating is not applicable, compliance can be shown through ISI certified Pumps & Motors Multi-dwelling Residential Units: ( points) Provide any two of the following measures: Pumps: BEE 4-star rated Pumps (or) Minimum 60% efficiency for Pumps of capacity greater than 3 HP and ISI certified pumps for others Motors: BEE 4-star rated Motors (or) Minimum 75% efficiency for Motors of capacity greater than 3 HP and ISI certified motors for others Elevators operating with intelligent group controls Energy efficient parking garage exhaust system 3

24 Other energy efficient equipment/ system Final Review: The project team has provided the narrative stating the energy efficient appliances used in the project. Also, the necessary Purchase invoices and photographs of the installed appliance and equipments have been submitted. This meets the intent of the credit. The IGBC Green Homes Version Template states that the project has adopted energy saving measures in other equipment and appliances. The measures include BEE 4-star rated ceiling fans, TVs, Refrigerator & pumps and. The submittal states that the elevators provided in the project have the facility of group control. Submittals include manufacturer datasheet/cutsheet. However, few more details are required. Technical Advice: Please provide the following: 1. The narrative is missing from the submittal. Provide a narrative clearly stating the feature implemented by the project team. Distributed Power Generation EE Energy Credit 5.0 Ver.0 Requirement: Install hybrid distributed power generation sets which operate both bio-fuels/ nonedible oils/ any other non-fossil based fuel and fossil fuel. These sets should comply with the Central Pollution Control Board (CPCB) requirements for emission and noise levels. Not Applicable Energy Metering EE Energy Credit 6.0 Ver.0 Not Applicable 4

25 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 7 0 Materials & Resources (MR) Possible Points - 13 Y Separation of House-hold Waste MR Mandatory Requirement 1 Ver.0 Requirement: For Individual Residential Unit: Provide separate bins to collect dry waste (paper, plastic, metals, glass, etc.,) and wet waste (organic). For Multi-dwelling Residential Units: Provide separate bins to collect dry waste (paper, plastics, metals, glass, etc.,) and wet waste (organic) at each dwelling unit and common areas (as applicable) in the building(s)/ campus. Additionally, provide a common facility with separate bins to collect waste which should cover the following, including dry and wet waste bins: Batteries e waste Lamps The IGBC Green Homes Version Template and narrative submitted states that the organic waste is segregated into 4 different categories Paper, plastic, Organic and e wastes. Submittal includes narrative, declaration letter from the owner and photographs of the bins This meets the mandatory requirement. 5

26 Organic Waste Management, Post-Occupancy: 50%, 95% MR Credit 1.0 Ver.0 The IGBC Green Homes Version Template and narrative submitted states that Biotech aerobic bins have been used to treat 100% of organic waste generated on-site according to the narrative and the template daily waste produced in the project is 1.5 Kgs and the capacity of the Aerobic bin is 5 Kgs. Supporting documents include site plan showing the location of the organic composting bin, on-site photographs. This meets the intent of the credit. 1 Requirement: Handling of Construction Waste Materials: 50%, 95% MR Credit.0 Ver.0 Avoid atleast 50% of the waste generated (by either weight or volume) during construction from being sent to landfills. Points are awarded as below: Percentage of Construction Waste Materials Handled > 50% > 95% Points for Individual Residential Unit 1 - Points for Multi-dwelling Residential Unit 1 The IGBC Green Template submitted states that more than 50% of the construction waste generated on- site has been reused or sent for recycling. The narrative states that major waste generated on site like brick waste, steel waste, tile waste will be reused on site. Minor wastes like cement bags and paint buckets will be sold to a vendor for recycling. The submittal includes narrative of waste handling and photographs at various stages. This meets the intent of the credit. Reuse of Salvaged Materials: 1%, % MR Credit 3.0 Ver.0 Not pursuing Materials with Recycled Content: 10%, 0% MR Credit 4.0 Ver.0 Requirement: Use materials with recycled content such that the total recycled content constitutes atleast 10% of the total cost of the materials used in the building(s)/ campus. 6

27 Points are awarded as below: Percentage of Materials with Recycled Content > 10% > 0% Points 1 The IGBC Green Homes Version Template submitted states that the recycled content of all the materials used in the project constitutes 6.5%. Materials used with recycled content include Steel, AAC blocks, RMC, PPC, Tiles, Pre-Engineered wood, Glass. Submittal includes manufacturer letter indicating the Percentage of recycled content Bill of Quantity, Purchase bills. This meets the credit requirement. Local Materials Materials Credit 5.0 Ver.0 Requirement: Ensure atleast 5% of the total building materials (by cost), used in the building(s)/ campus, are manufactured within a distance of 400 km. Points are awarded as below: Percentage of Local Materials > 5% > 50% Points 1 The IGBC Green Homes Version Template submitted states that the project team has procured over 50% of the materials used in the construction from local manufacturers. The materials include Steel, RMC, PPC, Murram, Red brick, flush doors, MS grills, ceramic and tiles. Local material cost comprises 94.3% (Rs ) out of the total cost for the project (i.e. Rs ) The submittal includes Bill of Quotations, Bills of purchases and manufactures letter of compliances. This meets the intent of the credit. Rapidly Renewable Building Materials & Certified Wood MR Credit 6.0 Ver.0 Requirement: Ensure atleast 50% of all wood based materials (by cost) used in the building(s)/ campus must be: Rapidly renewable 7

28 (AND/ OR) Wood certified by Forest Stewardship Council (FSC) or Programme for the Endorsement for Forest Certification (PEFC) or equivalent Points are awarded as below: Percentage of Rapidly Renewable Material / Certified Wood > 50% > 75% Points 4 8

29 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 15 0 Indoor Environmental Quality (IEQ) Possible Points - 15 Y Tobacco Smoke Control IEQ Mandatory Requirement 1 Ver.0 Requirement: Individual Residential Unit: Smoking should be prohibited in the common areas of the building. Multi-dwelling Residential Units: Smoking should be prohibited in the common areas of the building(s) and campus. The IGBC Green Homes Version Template and narrative submitted states that to maintain a safe quality indoor environment, smoking is prohibited anywhere inside the boundary of the project. The submittal includes a signed letter of declaration from the owner. This meets the mandatory requirement. Y Requirement: Minimum Daylighting: 50% IEQ Mandatory Requirement Ver.0 The project can choose any one of the following options: Option 1 Prescriptive Approach Option Simulation Approach Option 1: Prescriptive Approach For Individual Residential Unit: Achieve minimum glazing factors as below in atleast 50% of the regularly occupied spaces. For Multi-dwelling Residential Units: Achieve minimum glazing factors as below in atleast 50% of the regularly occupied spaces in each dwelling unit. Table 4 - Glazing factors for Regularly Occupied Spaces Type of Regularly Occupied Spaces Glazing Factor (GF)* 9

30 Living/ Bedroom Study room Kitchen 1 Option : Simulation Approach For Individual Residential Unit Demonstrate through computer simulation that 50% of the regularily occupied spaces achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) in a clear sky condition on September 1 at 1 noon, at working plane. Multi-dwelling Residential Units: Demonstrate through computer simulation that 50% of the regularily occupied spaces, in each dwelling unit, achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) in a clear sky condition on 1 st September at 1 noon, at working plane. Final Review: The Project team has submitted the necessary details about the glass used. This meets the intent of the credit. The IGBC Green Homes Version Template and narrative submitted states that project achieves the minimum daylight factor meeting the criteria in 100% of the regularly occupied areas. The submittal includes daylight factor calculations for each dwelling unit indicating the daylight factor for each regularly occupied spaces (i.e. living room, bedroom 1, bedroom & kitchen). However, more details are required. Technical Advice: Please provide the following: 1. It is not conclusive as to which glass is used. The submitted brochure from the glass manufacturer showcases various glasses that are available, but the glass that has been shortlisted has not been highlighted. Submitted document clearly highlighting the glass that has been used their respective VLT values. 30

31 Y Requirement: Fresh Air Ventilation IEQ Mandatory Requirement 3 Ver.0 For Naturally Ventilated Spaces: Provide openable windows or doors to the exteriors in all regularly occupied spaces of each dwelling unit such that the openable area is designed to meet the criteria as outlined in the table below: Table 6 - Design Criteria for Openable Windows and Doors to the Exteriors Space Type Living Spaces Kitchen Bathrooms* Openable Area as a Percentage of Total Carpet Area 10% 8% 4% For Air Conditioned Spaces: Design a ventilation system for air-conditioned spaces, as 5 cfm per person for each air-conditioned space in base case. CAA The IGBC Green Homes Version Template and narrative states that project is designed to meet the fresh air ventilation standards. The fresh air calculations submitted for all living spaces Hall, bedrooms, kitchens & toilets floor wise, which indicate that the minimum percentage of openable area to the total carpet area. This meets the intent of the credit. 4 Requirement: Enhanced Day lighting: 75%, 95 % IEQ Credit 1.0 Ver.0 The project can choose any one of the following options: Option 1 Prescriptive Approach Option Simulation Approach Option 1: Prescriptive Approach For Individual Residential Unit: Achieve minimum glazing factors as below in atleast 75% of the regularly occupied spaces. 31

32 For Multi-dwelling Residential Units: Achieve minimum glazing factors as below in atleast 75% of the regularly occupied spaces in each dwelling unit. Points are awarded as below: Percentage of Regularly Occupied Spaces with Daylighting > 75% > 95% Points 4 Table 4 - Glazing factors for Regularly Occupied Spaces Type of Regularly Occupied Spaces Glazing Factor (GF)* Living/ Bedroom Study room Kitchen 1 Option : Simulation Approach For Individual Residential Unit Demonstrate through computer simulation that 75% of the regularily occupied spaces achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) in a clear sky condition on September 1 at 1 noon, at working plane. Multi-dwelling Residential Units: Demonstrate through computer simulation that 75% of the regularily occupied spaces, in each dwelling unit, achieve daylight illuminance levels of a minimum of 10 footcandles (fc) (108 lux) in a clear sky condition on 1 st September at 1 noon, at working plane. Final Review: Refer to final review comments stated under IEQ MR Refer to Preliminary review comments stated under IEQ MR. Technical Advice: Please Refer Technical Advice comments stated under IEQ MR. 3

33 Requirement: Enhanced Fresh Air Ventilation: 30% IEQ Credit.0 Ver.0 For Naturally Ventilated Spaces: Provide openable windows or doors to the exteriors in all regularly occupied spaces of each dwelling unit such that the openable area is designed to meet the criteria as outlined in the table below: Table 6 - Design Criteria for Openable Windows and Doors to the Exteriors Space Type Living Spaces Kitchen Bathrooms* Openable Area as a Percentage of Total Carpet Area 13% 10% 5% For Air Conditioned Spaces: Design a ventilation system for air-conditioned spaces, as 6.5 cfm per person for each air-conditioned space in base case. CAA Refer to Preliminary review comments stated under IEQ MR 3. Exhaust Systems IEQ Credit 3.0 Ver.0 The IGBC Green Homes Version Template and narrative submitted states that exhaust systems has been designed in kitchen and bathrooms which meets the minimum air flow rates (i.e. 100 cfm for kitchen and 50 cfm for bathrooms). Supporting documents includes bills of purchase of the exhaust system, cut sheets of the exhaust system & photographs of the exhaust systems. This meets the intent of the credit Low VOC Materials, Paints & Adhesives IEQ Credit 4.0 Ver.0 The IGBC Green Homes Version Template and narrative submitted states that low VOC paints have been used for all interior walls. The VOC content of the paint used is less than VOC limit required for the credit. Supporting documents include test reports, certificates from the manufacturer stating the VOC content of proposed paints & adhesives, Bills of purchase. This meets the intent of the credit 33

34 1 Requirement: Building Flush Out IEQ Credit 5.0 Ver.0 Perform a building flush-out for ten days by keeping all windows open before the building is occupied. Flushing is to be carried after paints & coatings and adhesives & sealants have been applied. (OR) If the building prefers to carry out the flush-out using forced ventilation systems, the flush-out can be carried out for five days. The project has submitted narrative stating that to meet the credit requirements building lush out was carried out from. The submittal includes a letter of declaration from the owner and photographs taken during flush out. This meets the credit requirement. 4 Cross Ventilation IEQ Credit 6.0 Ver.0 Requirement: Ensure that minimum 50% of the regularly occupied spaces (by area) in each dwelling unit shall have an opening (doors/ ventilators/ windows) to the outdoor environment, in atleast two of the orientations. Points are awarded as below: Percentage of Regularly Occupied Spaces with Cross Ventilation > 50% > 75% Points 4 Final Review: The project team has provided the narrative stating the projects approach towards this credit. The submittal also includes the floor plans and photographs. This meets the intent of the credit. The IGBC Green Homes Version Template, submitted states that the project is designed such that 50% of the regularly occupied spaces by area have an opening to 34

35 the outdoor environment in atleast two orientations. Supporting documents include ground and first floor plan highlighting the windows, window opening schedule, cross ventilation sketches, detailed calculations to show the compliance for the credit. However, more details are required. Technical Advice: Please provide the following: 1. The narrative is missing from the Submittal. Provide the Narrative.. 35

36 Denied Pending Anticipated IGBC Green Homes Version.0 Final Review 4 Innovation and Design Process Possible Points Innovation and Design Process (100% Solar Hot Water System).0 Credit 1.1 Ver Requirement: Identify the intent of the proposed innovation credit, the proposed requirement for compliance, and the proposed documentation to demonstrate compliance, and the design approach used to meet the required measures. Refer to comments under EE Cr 3 1 Innovation and Design Process (Human Machine Interface Device) INN Credit 1. Ver.0 Requirement: Same as INN Credit 1.1. The project has installed a human interface device for efficient utilization of the generated power 1 Innovation and Design Process ID Credit 1.3 Ver.0 Requirement: Same as INN Credit 1.1. The project has installed a Wind-Solar PV hybrid with an installed capacity of 3 kw catering to 100% of the building energy needs. Innovation and Design Process ID Credit 1.4 Ver.0 Requirement: Same as INN Credit 1.1. Not Pursuing 36

37 1 IGBC Accredited Professional ID Credit Ver.0 Requirement: Professional. Atleast one principal participant of the project team shall be an IGBC Accredited CAA The IGBC Green Homes Version Template and narrative submitted states that an IGBC Accredited Professional has been a participant in the project development team. The IGBC AP certificate of Ms. Sarika Vohra is submitted. This meets the credit requirement. 37