environmentally sustainable design report

8/8/2019 Environmentally Sustainable Design Report

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Waterman Emirates Page No. i

Doc ID: H:\LEED Books\Nakheel Environmentally Sustainable Design1.doc

Authorised by: PLRev ID: 1 Rev status: Preliminary Design Submission

Wat e r m a n I n t e r n a t i o n a l

Consulting Engineers and Facility Managers

EnvironmentallySustainable Design Report

ECO-LOFTSLot No: PACA-54The Palm Jebel AliJob No: 22182

Our Ref: 22182

21 December 2008

Prepared by: Waterman International Dubai Festival CityFestival Tower, Level 17P.O. Box 117448DUBAI, U.A.E.

Web: www.waterman-group.co.uk

SHIGERU BAN ARCHITECTS


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Rev ID: 1 Rev status: Preliminary Design Submission

Revision Record Sheet

A 22.02.09 Issued for Preliminary DesignSubmission

VL

Rev Date Description Prepared by Authorised by


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TABLE OF CONTENTS

Item Description Page No.

Executive Summary 1

1. Item 1: The Sustainability Report by a Qualified Expert 2

1.1. Compliance to Appendix C of the Development Control Regulations: 2 1.2. Compliance to Environment, Health, Safety Regulations for Green Building

Design in Dubai World Areas 3 1.3. Green Design Strategies 3 1.4. Codes and Guidelines 5

2. Item 2: Incorporate Principles of the ASHRAE Green Guide 7

2.1. ASHRAE Green Guide 7 2.2. ASHRAE/IESNA Standard 90.1-2004 7 2.3. Mandatory requirement for Energy consumption reduction 7

3. Item 3: Include Statement on LEED Rating System Score 11

4. Item 4: Include a Computer Model for Energy Performance 12

4.1. Building Information Modelling 12 4.2. Input Data 13 4.3. Output Data 20 Summary and Next Design Stage 26

5. Item 5: Include Design Statements for Carbon Reduction 27

5.1. Reduction of Electricity usage 30 5.2. Reduction of Gas usage 31

6. Item 6: Include Proposal for Water Sensitive Urban Design 32

6.1. Reduction of Potable Water usage 32 6.2. Reuse of Graywater 34 6.3. Reuse of Wastewater 35 6.4. Reuse of Recovered Condensate 35 6.5. Reuse of Fire Fighting System Test Water 35 6.6. Reuse of Pool Water Backwash 35

6.7. Reuse of Rainwater and Storm water 35 7. Item 7: Pollution Protection to Achieve Minimum Solar Impact 38

7.1. Faade Treatment 38 7.2. Architectural Solutions 38 7.3. Use of Daylighting 39

8. Item 8: Windows and Wall Insulation Specifications 40


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8.1. Glazing Specs 40 8.2. Wall Build-up 40

9. Item 9: Include Provisions for Shading All Non-Roof Surfaces 41

10. Item 10: State Roof Area Vegetation for High Emissivity Levels 42

10.1. Green Roofs 42 10.2. Cool Roofs 42 10.3. Wetted Roofs 43

Appendices

A - LEED AP Certification 41

B - Preliminary LEED Project Checklist 42

C - DCR Appendix C Deviation Schedule 52

D - USGBC LEED Registration 53


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EXECUTIVE SUMMARY

This report forms part of the Palm Jebel Ali Preliminary Design Submission package as outlined in thePalm Jebel Ali Development Control Regulations Crescent A, Version 1, issued December 2007.

This report will address the following items:

ITEM 1: The Sustainability Report by a Qualified Expert

ITEM 2: Incorporate Principles of the ASHRAE Green Guide

ITEM 3: Include Statement on LEED Rating System Score

ITEM 4: Include a Computer Model for Energy Performance

ITEM 5: Include Design Statement for Carbon Reductions

ITEM 6: Include Proposal for Water Sensitive Urban Design

ITEM 8: Windows / Balconies Design / Wall Insulation Specifications

ITEM 9: Include Provisions for Shading All Non-Roof Surfaces

ITEM 10: State Roof Area Vegetation for High Emissivity Levels


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1. Project Description

1.1. Project Team

The exclusive residential beachfront development Plot A54 is part of the first phase of The PalmJebel Ali Project and will set a precedent for the overall development. The individualdevelopments of Crescent A will create homes for 45,000 people, form a vibrant community andwill provide accommodation for affluent young singles, couples and families. The Dubai, UAEbased developer of Plot A54 Arcology Properties expects highest standards of innovation andsustainable design for their projects on Crescent-A of Palm Jebel Ali.

Shigeru Ban Architects are an accomplished Japanese and international architectural practice,embracing the combination of Western and Eastern building forms and methods. Some of thepractice world-renowned work includes residential projects, Curtain Wall House (1995), Hanegiforest, Picture window house (2002), Maison E (2006), JP and public project Hannover expo 2000Japan Pavilion (2000), Pompidou Centre Metz (2009).

Terrell is a consultancy group of international stature specialized in all facets of building

engineering. For this development, Terrell provides engineering of Structural, MEP, LEED andFire / Safety.

1.2. Design Concept

The design for Plot A54 includes multi storey apartment units, a residents-only gym area, groundfloor food retail, and two basement car park levels. The site is accessible for pedestrians fromthree sides and has direct beach frontage. A pedestrian alley connects corniche and street side.

The architects designed each residential unit with a 45angle towards the sea front; this provideeach unit with magnificent sea view while respecting the direct overlooking into the assumedresidence of the adjacent plot.

Food retails open to street and water front, with which serve mainly for the needs of our building

residence and its adjoining neighbours. Also we anticipate the area to become a lively openspace that attracts visitor to the Palm Jebel Ali Island and contribute to the vitalization of the area.The parking space for the visitors is located on B1F/B2F. The access to the proposed retail spaceto be directly from street/ water front; this will provide vitality and a human scale to the street andwater front same as the Dubai Marina and Jumeira beach residence.

2. Item 1: The Sustainability Report by a Qualified Expert

Vladimir Limin is a LEED Accredited Professional and will be acting as the LEED Facilitator on thisproject. Please refer to Appendix A of this document for a copy of her USGBC Accreditation.

2.1. Compliance to Appendix C of the Development Control Regulations:

2.1.1. USGBC Gold LEED Rating

Please refer to Appendix B for the project LEED Checklist (LEED NC v2.2 October2007) which identifies the credits being pursued. Please note that this checklist issubject to revision throughout the Detailed Design stage of the project as the designstrategies are studied further and the cost of achieving various credits have beenidentified by the project Cost Consultant.


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2.1.2. Sustainability Requirements

All design disciplines will confirm compliance to the mandatory sustainabilityrequirements as outlined in Madinat Al Arab, Development Control and Regulation(DCR). Please refer to Appendix C of this report for the deviation schedule and thetechnical justifications associated with the design strategy outlined.

2.2. Compliance to Environment, Health, Safety Regulations for Green BuildingDesign in Dubai World Areas

All design disciplines will confirm compliance to the requirements of the mandatory creditsas mandated by EHS. Please refer to Appendix B for the project LEED Checklist (LEED NCv2.2 October 2007) for details.

2.3. Green Design Strategies

2.3.1. Mechanical and Building Management System

Mechanical & Building Management systems shall be designed with sustainability

as a prime consideration. The following (non exhaustive) list outlines the main greendesign strategies associated with these systems:

HVAC systems shall be designed to maximise energy performance. Heatrecovery facilities such as plate heat exchangers, thermal wheels, heat pipesand run around coils shall be utilised in extract/supply air systems. Highefficiency plant and low NOx boilers shall be specified throughout. Variablespeed motors shall be used on all fans and pumps to optimize systemoperation and reduce power demand.

All ductwork and pipework shall be well insulated in order to minimise lossesand maximise potential energy recovery.

A comprehensive building energy management system shall be employed in

order to provide central control, monitoring and management of energy usagefor the complete building services installation. The BMS system shall be linkedto the centralized energy monitoring centre. Zone control of internalenvironments shall enable shutdown or set back of systems in unoccupiedareas.

Condensate recovery from AHU & FCU shall be provided for re-use forirrigation or toilet flushing.

Greywater/waste water recycling i.e. showers, bathtubs, wash hand basins,washing machines etc, for re-use for irrigation or toilet flushing.

Stormwater harvesting for re-use for irrigation or toilet flushing.

Use of high efficiency fixtures such as spray head and aerated low flow taps toreduce energy and wastage.

Use of low flush and dual flush toilets to reduce water consumption.

Use of on site renewable sources, such as solar thermal domestic waterheating, and photo-voltaic (to be further developed during detailed designstage of the project).


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2.3.2. Electrical and Specialist Lighting

Electrical & Specialist Lighting systems shall be designed with sustainability as aprime consideration and in addition lighting systems will comply with the DubaiWaterfront Guidelines for Sustainable Lighting (Validation Guidelines For Energyand Lighting Simulations). The following (non exhaustive) list outlines the maingreen design strategies associated with these systems:

Natural daylight shall be considered for incorporation into the lighting design,and integrated with the lighting controls system for the building in order toreduce energy consumption associated with artificial lighting.

A comprehensive lighting controls system shall be employed in order toincrease occupant comfort and effect energy savings. Typical controls shallinclude automatic occupancy sensors, daylight sensors (photocells), timecontrol/sequencing.

Home automation system shall be provided in residential buildings with facilityfor internet communication for central energy management.

Use of high efficiency luminaries complete with low wattage lamps and highfrequency control gear in order to optimize light output and reduce switchinglosses.

Use of low energy long life lighting sources, where appropriate, such asfluorescent, compact fluorescent or LED.

Exterior lighting of landscaping and architecture shall be limited andillumination levels minimized where possible. Full cut off luminaries, low anglespotlights and high efficiency low energy luminaries shall be utilised in order tominimise energy consumption and reduce sky-glow.

Automatic Power Factor Correction equipment shall be utilized to improve

power factor, reduce losses and optimize electrical energy tariffs.


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2.3.3. Civil and Architectural

Site wide strategies of building massing and location have been carefullyconsidered at this early concept design stage to ensure an environmentallyresponsive building envelope. Sun paths, prevailing winds and local climate haveinformed a building mass that aims to respond to the environment in a passive andsustainable manner.

The use of shallow floor plates and large windows maximizes natural daylighting tothe majority of units whilst the considered design of large vertical areas of solidrender or cladding together with appropriately sized spandrel panels providesubstantial areas of solar barrier.

Through schematic and detail design, the specification of building materials anddetailed faade systems and selection of building management systems will be inaccordance with green design strategies.

2.3.4. Structures and Faade

The overall structural form of the building will be developed in conjunction with thewhole design team and ultimate end-user to achieve a building design whichminimises the use of materials, especially concrete, which have a very highembodied energy and carbon footprint. The concrete frame of the buildingproduces the largest percentage of CO 2 especially the manufacturing process.Efficient structural design will minimise the size of the concrete elements which willtherefore reduce the associated CO 2. We will also maximise the amount ofprefabricated elements which will reduce activities on site, and will potentiallyproduce a more efficient design and allow greater repeatability in structuralelements by use of current prefabrication/preassembly techniques.

2.4. Codes and Guidelines

The following codes and guidelines are likely to be applied to the project in order to meet therequirements of various LEED credits and Development Control Regulations (DCR)Appendix C:

Local Erosion and Sedimentation Control Standards

Local Definition of Wetlands, Prime Agricultural Land, Brownfield Sites

National and Regional Endangered Species Lists

Local Guideline on Management for Source of Non-Pollution in Coastal Waters

American Council for an Energy Efficient Economy (ACEEE) annual vehicle rating guide

ASTM E1903-97 Phase II Environmental Site Assessment

ASTM E1980-01 Standard Practice for Calculating Solar Reflectance Index

ASTM E408-71 Standard Test Method for Total Normal Emittance

ASTM E903-96 Solar Absorptance, Reflectance and Transmittance

ASTM E1918-97 Solar Reflectance of Horizontal Surfaces

ASTM C1371-04 Determination of Emittance of Materials near Room Temperature


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ASTM C1549-04 Determination of Solar Reflectance near Ambient Temperature

ASHRAE/IESNA 90.1-2004 Energy Standard for Buildings Except Low Rise Residential Exterior Lighting Section 9

IESNA RP-33

The Energy Policy Act of 1992

EPA Clean Air Cat, Title VI, Rule 608 Procedure Governing Refrigerant Managementand Reporting

EPA List of Substitutes for Ozone-depleting Substances

International Performance Measurement and Verification Protocol (IPMVP) Volume III

ISO 14021-1999 Environmental Labels and Declarations

Forest Stewardship Council (FSC) Principles and Criteria

ASHRAE 62.1-2004 Ventilation for Acceptance Indoor Air Quality

ANSI/ASTM E779-03 Standard Test Method for Determining Air Leakage Rate

SMACNA, IAQ Guidelines for Occupied Buildings Under Construction

ANSI/ASHRAE 52.2-1999 Method of Testing General Ventilation

South Coast Air Quality Management District Rule No. 1168 regarding VOC limits foradhesives and sealants and Rule No. 1113 regarding Architectural Paint

Green Seal Standard GS-36 regarding VOC Limits for Commercial adhesives, GS-11

regarding VOC Limits for Commercial Paints, GS-03 regarding VOC Limits for anti-corrosive and anti-rust paints and coatings

Carpet and Rug Institute Green Label Testing Program regarding VOC emission limitsfor carpets and carpet cushion

ASHRAE 55-2004 Thermal Environmental Conditions for Human Occupancy


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3. Item 2: Incorporate Principles of the ASHRAE Green Guide

3.1. ASHRAE Green Guide

The reference text ASHRAE Green Guide The Design, Construction, and Operation of

Sustainable Buildings presents building services engineers with guidance on how toachieve a high performance, green or sustainable building particularly in conjunction withthe LEED rating system. It is not intended as an exhaustive text nor are engineersencouraged to consider it a prescriptive guide on the subject matter.

Building services systems design shall be approached as a means to achieving industrybest practice, compliant with authority regulations in order to produce a building which is fitfor purpose in terms of the clients requirements. Current day practice now extends this toproviding the same building in the most highly efficient manner whether this is achieved byoptimization of the building form and systems to reduce energy consumption or by providingsuch energy by means of highly specialized technologies such as renewables.

There is a process which needs to be followed in order to achieve a high performancebuilding. First and foremost, buildings must be maximized for energy efficiency and

performance. The building form and fabric presents the single largest opportunity forenergy savings to be realized both in terms of capital costs and ongoing operation andmaintenance costs. To ensure that this element is optimized will then lead onto the designof services and systems within. These too should be designed thoughtfully and in fullconsideration of the building function, i.e. correctly sized equipment without excessivemargins and then incorporation of the proper control strategy should ensure that theseelements use energy only as per the design intent and in the most efficient manner. Finallydesigners may consider the means of how to provide such energy requirements which maylead to incorporation of renewable sources such as solar thermal, photovoltaics (PV),geothermal energy, wind power, biofuels or even energy from the tides.

The foundation of all best practice and sustainable design however should stem from beingappropriate whether that relates to building form and function or to location therefore solarthermal and PV sources will only be considered for this project.

3.2. ASHRAE/IESNA Standard 90.1-2004

The design team will confirm compliance to the mandatory provisions and the prescriptive(or performance) requirements of this standard. The building envelope, HVAC, lighting andall the other systems are being designed to maximise energy performance.

In order to comply with LEED Energy & Atmosphere Credit 1, building energy performanceshall be optimized. This will be achieved via implementation of a series of design measuresas identified in sections 2.3.2.1 & 2.3.2.2 of this report i.e. provision of VFD's, lightingcontrols, power factor correction, BEMS, heat recovery on air systems, solar thermal waterheating etc. All plant items will be selected so that efficiencies will comply with ASHRAE90.1-2004.

3.3. Mandatory requirement for Energy consumption reduction

In accordance with the DCR Appendix C requires that the energy consumption within thebuilding should be 25% less than the base ASHRAE 90.1 2004 requirement. In order tomeet such reductions we would propose a number of energy saving techniques relating tothe building services and passive design of the building form as follows:


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3.3.1. Passive Design Principles

The first approach to reducing building energy use should always be microclimateand passive design. Issues to be considered will include:

The design of the building shall consider high insulation values andconstruction quality so as to reduce the impact upon the internal environmentfrom changes in the external environment.

Active solar control systems shall be considered such as the use of tintedglazing and solar shading systems by means of overhangs or fixed shadingdevices to reduce the impact of solar energy upon the building loads.

A good airtight construction will ensure unintentional infiltration is minimized inorder to avoid unwanted moisture intrusion and heat gains to the building; thisshall be tested and verified by means of air pressure testing of the buildingafter construction.

Design to maximize the use of natural day lighting on facades not impacted by

solar gains.

Scale and massing of the building elements to provide shading.

3.3.2. Energy Efficient Building Services Strategies

This section proposes a consolidated approach towards energy efficient design andexamines the various techniques that could be employed to optimize the design.Such energy efficient design strategy shall concentrate on three criteria:

Demand reducing the demand for heat and electrical energy at point of use,whilst maintaining a comfortable operational environment and comply withcode standards.

Generation generating and distributing energy by the most efficient and leastenvironmentally detrimental means. Employing renewable energy sourceswherever they are economically viable and environmentally acceptable.

Information Information to promote best practices shall be made available toall members of the design and construction teams. In turn comprehensiveoperating and maintenance manuals shall be provided to the end user uponcompletion of each phase of the development.

3.3.2.1. Mechanical Services Design

The following methods will be incorporated wherever possible and

practical in order to increase the energy efficiency of the building servicessystems.

Variable speed motors and drives shall be incorporated throughoutand are now relatively cost effective and could be considered on allfans and pumps to optimize system operation. They will also enablesoft starting which will reduce the maximum power demand.

Installation of heat recovery facilities in the extract/supply air systemssuch as plate heat exchanges, thermal wheels, heat pipes and run


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around coils shall be used on air plant to ensure that the maximumavailable energy is recovered for tempering the incoming ambient air.

All ductwork and pipe work should be well insulated to minimize heatdistribution losses/gains and maximize potential energy recovery. Allductwork and pipe sizes shall be optimized in order to reduce pumpand fan motor sizes.

Modular, High efficiency plant and low NOx boilers shall beincorporated to ensure the minimal impact upon the environment andmaximum output per energy input can be achieved. These shall belinked to comprehensive control systems in order to optimize efficiencyin operation.

A comprehensive building energy management system shall beemployed to provide control, monitoring and alarm of the new facility.This will allow central control and management of energy usage forcomplete building services installation. This also enables sitemonitoring and energy tracking, data logging and remote monitoringand adjustment. This system shall be interfaced with the developmentcentralised energy monitoring centre (as per DWF DCR requirements).

Zoned control of the internal environments to ensure that areas can beturned off or set back to avoid use of energy when areas areunoccupied.

Domestic hot water and cold water consumption are significant energyusers and the potential energy consumption and energy savingmeasures can be substantial and overlap with many of the proposalsabove.

Utilise spray head and aerated low flow rate taps where possible toreduce both water and energy wastage.

Low flush and dual flush toilets with comprehensive flushing controlshould be utilized to reduce water consumption and associated costs.

A grey water/wastewater recycling system shall be incorporated withinthe drainage design to enable savings in the mains water consumptionfor provision or irrigation requirements and possible toilet flushing.

3.3.2.2. Electrical Services Design

The following methods shall be incorporated within the electrical schemeto contribute to an energy efficient design.

Selection of high efficiency lighting and appropriate lighting to theenvironment.

Natural day lighting should be considered for integration into thedesign of the lighting installation where possible whilst minimizingunwanted effects such as glare and solar gains.

Energy consumption can be reduced by maximizing the penetration ofdaylight and adopting a good lighting controls regime.


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A comprehensive control strategy should be employed which includesautomatic time clock override switching to suit occupational trends andto ensure that the artificial lighting is not unnecessarily left on. Cost-effective smooth automatic light level controls including automaticdaylight linking and presence detection devices should also beprovided where possible, combined with local switching and dimmingcontrols.

All control gear should be of a high frequency type in order to reduceswitching losses and high efficiency reflectors should be providedwhere practical in order to optimize the light output.

Maximize the use of compact fluorescent fittings for appropriate areasin preference to other light sources; fluorescent lamps useapproximately 80% less energy than equivalent tungsten lamps andlast eight times as long.

General electrical cabling distribution losses can be minimized by amodest increase in the electrical cable size. Energy savings resulting

from the reduced voltage drop can easily out weigh the initial cost.Power factor correction could optimize electrical energy tariffs andconsumption by adjusting the lagging current to meet the requirementsof the supply authority.

Time clock switching of electrical circuits to reflect occupational trendscould be considered. Avoid leaving appliances on stand-by.

3.3.3. Benefits of Energy Efficiency in Buildings

With the consideration of the above factors and all feasible energy efficiencymeasures incorporated within the building design, the following benefits should berealized:

Reduced energy consumption and costs potentially large reductions inenergy consumption are achievable over conventional designs.

Reduced environmental impact reduced CO 2 and NO X emissions.

Improved internal environmental conditions well planned comprehensivecontrols systems facilitating good local control of thermal environment.

Extended useful life of plant control intensive engineering services combinedwith well planned controls systems resulting in reduced plant operational hoursand optimized energy usage.


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4. Item 3: Include Statement on LEED Rating System Score

Please refer to Appendix B for the preliminary LEED Project Checklist.


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5. Item 4: Include a Computer Model for Energy Performance

5.1. Building Information Modelling

The project is located within the Dubai Waterfront Development Madinat Al Arab, Dubai and

comprises Plot B-4 A-3, referred to as Transworld Holdings. The project comprises an 18storey tower housing residential apartments, 2No basements and 1 No thirteen level pool,common areas, as well as retail and gym space

Building Orientation

South Elevation North Elevation

South Elevation North Elevation

North


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East Elevation West Elevation

Figure 4.1 Building Models produced in IES VE

The building energy model has been prepared in the IES Virtual Environment simulationsoftware suite. The following input parameters form the basis of the energy simulation ofthe model. The simulation shall follow the criteria outlined in ASHRAE Standard 90.1-2004Appendix G Performance Rating Method to establish the improvement in performance asrequired under the LEED rating system and the DCR Appendix C, between the baselinebuilding performance and the proposed building performance.

5.2. Input Data

The following parameters have been used to form the basis of design for the baselinebuilding performance.

Gross Floor Area 24,860 m 2

No. of Floors 18

Building Usage Residential

Table 4.2 Building Parameters


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5.2.1. Environmental Conditions

The following environmental conditions have been used in accordance with theJAFZA and Dubai Municipality Regulations.

External Conditions

Dry Bulb Temperature 46c

Wet Bulb Temperature 29c

Dubai City Location Latitude 25 North

Daily Diurnal Range 13.8 c

Table 4.3 External Conditions

Table 4.4 IES External Conditions


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Internal Conditions

Dry Bulb Temperature 24 c

Relative humidity 505%

Table 4.5 Internal Conditions

(Reference source Administrative Resolution No. (66) of 2003 Approving Regulations on the Technical Specifications for Thermal insulation Systems and Control of Energy Consumption for Air-conditioned Buildings in the Emirate of Dubai)

Figure 4.6 Sun Path Diagram

5.2.2. Building Envelope Parameters Environmental Conditions

The building envelope comprises a lightweight curtain wall system made up ofglazed units and spandrel panels. This has been modelled to both the DubaiMunicipality and the ASHRAE Code requirements to verify approval of both parties.The local code requirements of Dubai Municipality will remain the minimumapplicable building standard.

Dubai Municipality requires the following maximum U-values to form the basis ofdesign of the fabric elements of a building.


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Building Element U-value (W/m 2.K)

Roof 0.44

Wall 0.57

Glazing 2.1 (Shading Coefficient 0.35)

Table 4.7 DM U-values

(Reference source Administrative Resolution No. (66) of 2003 Approving Regulations on the Technical Specifications for Thermal insulation Systems and Control of Energy Consumption for Air-conditioned Buildings in the Emirate of Dubai)

ASHRAE requires the following maximum U-values to form the basis of design ofthe fabric elements of a building.

Building Element U-value (W/m 2.K)

Roof 0.36

Wall 0.71

Floor 1.825

Glazing 5.4 (Shading Coefficient 0.28)

Table 4.8 ASHRAE U-values

(Reference source ANSI/ASHRAE/IESNA Standard 90.1-2004 Energy Standard for Buildings Except Low Rise Residential Buildings)


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Figure 4.9 Baseline External Wall as per ASHRAE 90.1 : 2004

Figure 4.10 Baseline Roof as per ASHRAE 90.1 : 2004


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Heat Gains Occupant Gains/Person (W)

Sensible 75

Latent 40

Table 4.13 Occupancy Heat Gains

(Reference source CIBSE Guide A 2006 Table 6.3 Typical rates at which heat is given off by human beings in different states of activity/ASHRAE Handbook Fundamentals 2001)

4.2.3.2 Lighting

The lighting loads have been based upon best practice engineering designinformation for loads typical of this building type and for this stage of thedesign. Lighting loads shall be refined in future stages in accordance withthe selected systems and the simulation re-run .

Space Type Lighting Load Assumed (W/m 2)

Residential Apartments 12

Retail Units 12

Ancillary Areas 12

Table 4.14 Lighting Loads

(Reference source ASHRAE 90.1 : 2004, chapter 9 Lighting table 9.5.1Lighting Power Densities Using the Building Area Method)

4.2.3.3 Small Power

The small power loads have been based upon best practice engineeringdesign information for loads typical of this building type.

Space Type Small Power Load Assumed (W/m 2)

Residential Apartments 5

Retail Units 5

Ancillary Areas 5

Table 4.15 Small Power Loads

(Reference source ASHRAE 90.1 : 2004, chapter 8 Power)

4.2.3.4 Infiltration

The infiltration loads have been based upon best design engineeringpractice information for loads typical of this building type.


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Space Type Air Change Rate (ach)

Residential 1

Retail Units 1

Ancillary Areas 1

Table 4.16 Infiltration Loads

(Reference source ASHRAE Fundamentals 2001, Chapter 28 Residential Cooling and Heating Load Calculations, section Latent Heat Sources Table 7 & 8 averaged)

5.2.4. Schedules

The profiling of the building parameters provides information as to the usagepatterns on an hourly basis for each day of the week. Weekends are alsodifferentiated to ensure accurate profiling. A sample of the profiling inputs foroccupancy and lighting are shown below.

Table 4.17 Occupancy Profile

Table 4.18 Lighting Profile

5.3. Output Data

The geometrical model has been subjected to annual simulations using averaged weatherdata files in order to assess annual energy demands. This takes into account electrical


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loads, lighting and small power loads, cooling loads comprising solar gains, occupancylevels, ventilation rates and thermal loads due to the building fabric.

Given that the simulations produce very large output files, only a summary of the results isincluded at this stage. Full details will be provided at the detailed submission stage.

5.3.1. ASHRAE baseline Load

The model was analyzed using the ASHRAE 90.1 - 2004 U-values in order to verifycompliance DCR requirements as an initial start point. It can be seen that such abuilding form produces a total annual building energy consumption of 9253 MWh .

The model was further analyzed using DM U-values so that a comparison could bemade between ASHRAE and DM U-values and also in order to determine theminimum proposed building energy consumption upon which the LEED certificationwill be made. From the results of the analyses we able to determine that thebuilding did not comply with the 25% reduction in energy consumption over theASHRAE baseline as required by the Development Control Regulation Appendix C.

Figure 4.19 Failed DM Building Energy Consumption Breakdown

Chart

In lieu of the aforementioned the model was further analyzed using an increasedglazing specification. The glazing U-Value was changed from 2.1w/m 2k with ashading coefficient of 0.35 as per the DM values, to 1.41w/m 2k with a shadingcoefficient of 0.28

It can be seen that such a building with the new glazing produces a total annualbuilding energy consumption of 6938 MWh .


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Figure 4.20 ASHRAE and Proposed Building Energy ConsumptionBreakdown Chart


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ASHRAE Building

Exterior Lighting2%

Space Cooling29%

Fans Interior23%

Pumps0%

Heat Rejection0%

Space Heating0%

Interior Lighting9%

Elevators 7Escalators

0%Cooking

7%Refrigeration

2%

ReceptableEquipment

22%

Fans - ParkingGarage

6%

Service WeaterHeating

0%

Figure 4.21 ASHRAE Baseline Energy Consumption Breakdown

DM Building (c/w Glazing with U Value of 0.28w/m2kand Shading Coefficient of 0.28)

Fans (ParkingGarage)

8%

Service WaterHeating

0%

ReceptableEquipment

29% Pumps1%

Fans (Interior)12%

Heat Rejection0%

Space Cooling22%

Exterior Lighting2%

Space Heating1%

Interior Lighting12%

Elevators 7Escalators

0%Cooking

10%

Refrigeration3%

Figure 4.22 Proposed Building Energy Consumption Breakdown

5.3.2. Comparison between DM/ASHRAE Load Calculations

Given that the DM code compliant building has a better performance than theASHRAE compliant building then this will be the minimum building form which shallbe allowed for the development. However as the DM building model does notprovide an energy reduction of 25% over the ASHRAE 90.1 - 2004 building, the


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glazing will be improved to have a U-Value of 1.41w/m 2k with a shading coefficientof 0.28

The Development Control Regulation Appendix C necessitates a reduction inenergy consumption by a minimum of 25% over the ASHRAE baseline. As such wecan immediately see that such improvements will also lead to compliance with DCRand LEED requirements.

5.3.3. Compliance with DCR Faade Thermal Performance

In order to verify compliance with the Development Control Regulations AppendixC, the faade thermal performance must not exceed 35W/m 2 over the gross floorarea. Based on the loads obtained above and the gross floor area as set out earlierin the input parameters information, the calculation procedure is as follows:

Total Floor Plate Fabric Load

Floor Area Max Fabric Load Fabric Load

24,859 m2

x 35 W/m2

= 870,065 W

Figure 4.23 Building Floor Area


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Based on the simulation carried out for the DM calculation results the faadethermal load calculation attained the following results:

Floor Area 24,859 m2

Fabric Load 577,226 W

Load/Area 23.22 W/m 2 Pass

Figure 4.24 DCR Compliance

The compliance with the DCR Faade Thermal Performance is based on a glazingshading co-efficient of 0.28.


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Summary and Next Design Stage

For the purposes of this preliminary submission the proposed ASHRAE and DMbuilding performance has been presented. It has been verified that the proposedbuilding with the increased glazing specification to have a U-Value of 1.41w/m 2k with a shading coefficient of 0.28 now meets both the requirements of the DubaiMunicipality Regulations in terms of the minimum regulatory build standards ofDubai, and in addition meets the minimum requirements as set out by ASHRAE aspart of the minimum requirements to meet the LEED criteria.

One important aspect to be identified from this process is that the design team isable to establish where the maximum potential lies for making the proposed energyreductions, which can then be targeted in the next design stage; typically asfollows:

Further fabric element reductions are potentially available and these shall beinvestigated in order to attempt to reduce the cooling load.

Lighting efficiencies shall be improved (albeit this is a small percentage

reduction to the whole building energy).Incorporation of solar thermal hot water heating for a minimum of 50% of theload

Plant and equipment efficiencies shall be improved to achieve reductions inthis area since this is a substantial proportion of the energy consumption.

The design shall now be developed by the design team in order to determine thenature of the proposed building and for the next design submission stage, a fullcomparison shall be presented between the baseline building performance and theproposed building performance in order to verify and validate the energy reductionswhich have been achieved in order that these can be submitted for LEEDcertification.


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6. Item 5: Include Design Statements for Carbon Reduction

The most common way of assessing the environmental impact of an item of equipment in use is tocalculate the amount of carbon emitted into the atmosphere as a result. The important benchmarkfor this is the carbon index of the fuel source. This is expressed as either the Kg of carbon or theKg of CO

2emitted into the atmosphere per kWh of useful energy produced.

For fossil fuels, this is simply a function of the chemical processes of combustion of the fuel. Forelectricity, the carbon index represents the average amount of CO 2 produced as a result of mainselectricity generation and distribution. The current carbon indices are as follows:

Delivered Fuel Carbon Emission Factor

(kg CO 2 /kWh (kgC/kWh)

Biogas 0

Waste Heat 0

Biomass 0

Electricity 0.502 0.013

Natural Gas 0.19 0.053

LPG 0.068

Oil 0.25 0.074

Coal 0.30 0.086

Table 5.1 Carbon Indices

(Reference source BSRIA Rules of Thumb 2001, Chapter Energy and Carbon Issues, Table 1 Energy Conversions)

Mains electricity can be generated from a variety of sources (coal/oil/gas/nuclear/hydro-electric)and is distributed via the national grid. Taking into account the distribution losses electricitygeneration is typically only 40% efficient.

It is currently recognized that the most cost effective way to reduce CO 2 emissions is throughenergy efficiency measures. For all buildings, the total energy requirements should be reduced bymeans of improving building fabric and incorporating and taking advantage of thermal mass,passive design features (such as solar shading and natural ventilation), effective daylighting

incorporating energy saving features and controls and highly efficient plant.


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Table 5.2 Carbon Indices

Gas 2,124 + 682,226 = 684,350kWh

The remaining energyis provided byelectricity.


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ASHRAE BUILDING = 9,253,764kwh Total (Electricity and Gas)

Gas = 684,350kWh / annum

Electricity = 8,569,414kWhr / annum

PROPOSED BUILDING = 6,937,790kwh Total (Electricity and Gas)

Gas = 684,350kWh / annum

Electricity = 6,253,440kWhr / annum

ASHRAE BUILDING GAS ENERGY (TOTAL) = 684,350kWh / annum

PROPOSED BUILDING GAS ENERGY (TOTAL) = 684,350kWh / annum

REDUCTION IN ENERGY (GAS) = 0 kWh / annum

ASHRAE BUILDING ELECTRICITY ENERGY (TOTAL) = 8,569,414kWhr / annum

PROPOSED BUILDING ELECTRICITY ENERGY (TOTAL) = 6,253,440kWhr / annum

REDUCTION IN ENERGY (ELECTRICITY) = 2,285,974 kWh / annum

0.013 / 2,285,974 = 5.69x10 -9kgC (25%).

0.502 / 2,285,974 = 2.19x x10 -7kgCO 2 (25%).

As can be seen from sections 4.3.1 and 4.3.2, a saving of 2,285MWh is achieved using the DMbuilding load (over the baseline), which corresponds to a carbon reduction of 5.69x10 -9kg ofCarbon (25%) and 2.19x10 -7kg of Carbon Dioxide (25%).

Once all passive means have been identified, the use of renewables or alternative fuels will beconsidered and thus it is useful to analyse the benefits of those available as in the following table.

Technology Carbon Dioxide Savings

Solar thermal Low-medium

Photovoltaics Low

Wind Power Low-medium

Biomass Boiler High

Geothermal sources Medium

CHP Medium-High

District Cooling Medium-High

Table 5.3 Carbon Dioxide Savings for Alternative & Renewable Technologies


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6.1. Reduction of Electricity usage

In order to reduce the total electricity consumption onthis development we shall be pursuing the options ofimproved efficiency lighting systems, improvedefficiency plant systems and advocate the selection ofenergy rated products wherever possible.

Such methods shall not only reduce the building energyconsumption but also achieve operational cost savings.

Once all of the energy efficiency measures havebeen incorporated then the design team shall look atthe introduction of renewable energy sources.There are points which can be obtained under theLEED criteria which call for a minimum of 2.5% ofthe energy required to be provided by renewablesources.

In this case we shall investigate utilizing photovoltaics to supply ancillary power loads withinthe building. This shall further reduce the electricity requirement of the building.


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6.2. Reduction of Gas usage

It is proposed that solar hotwater shall be used tosubsidize the centralizedgas domestic hot watersystem in accordance withDCR requirements. This willeffectively reduce the energyconsumption for this elementby the same proportion ofthe percentage of solar hotwater provided along withthe carbon emissions.

(Source Endless Solar)


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7. Item 6: Include Proposal for Water Sensitive Urban Design

Sustainable water management considers maximizing water conservation through the integrationof various water conservation measures such as installation of water efficient fixtures, grey, wasteand condensate water collection, treatment and reuse, and where practicable rainwater and stormwater harvesting.

When investigating alternatives to potable water usage, the decision about matching alternativesources of water to an appropriate end use shall take into consideration two major factors:

The minimum level of treatment required to ensure that the water from the alternative sourceis fit for the end use.

The quantity of the water supply from the alternative source.

The most preferred match is where the quantity of the supply from the alternative source is able tomeet the demand of the end use with the least cost of treatment.

7.1. Reduction of Potable Water usage

In order to meet the requirement for reducing potable water usage on the development anumber of options intend to be followed. These include both the reduction of domesticwater consumption through the utilization of low flush and low flow fixture units, carefullyconsidered landscape design, pool management and also by means of recycling water thatwould otherwise run to drain.

Potable Water Use Breakdown

Domestic Use63%

Pool Make-Up27%

Irrigation Use10%

Figure 6.1 Baseline Building Potable Water Usage Breakdown


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7.1.1. Fixtures

Increasing the efficiency of fixtures can lead to significantreductions in water demand and also translates intoconsiderable cost savings.

Toilets usually account for a significant portion of the totalwater demand in a building of this nature. Based on anaverage toilet with a dual 6 litres per flush and typicalusage patterns of occupants (3-4 times per day) it can beseen that a reduction of 30-50% is achievable by theutilization of low flush toilets.

Urinals in public facilities use an average of 3.8 litres perflush. Waterless urinals commonly operate through the useof an oil separating barrier to avoid odours escaping andthe fact that they use no water provides 100% savings inuse.

By adjusting the flow rate of taps whilst maintaining aspray pattern, flow regulating tap aerators can significantlyreduce tap water use in hand wash basins and sinks.Savings can be in the region of 25% or more using thistype of fixture.

Shower heads are typically the largest source ofresidential water demand in a building. Typical non-efficient shower heads have a flow rate of approximately11 L/min in use; whereas highly efficient fixtures can beas low as 5 L/minute, thereby contributing up to 50%saving.

Fixture Type Baseline BuildingPerformance (EPA 1992)

Proposed BuildingPerformance

WC 6.1 l/f 4.2/3.0 l/f

Urinal 3.8 l/f 0

Shower Head 0.16 l/s (9.6 L/min) 0.11 l/s (6.6 L/min)

WHB 0.16 l/s (9.6 L/min) 0.11 l/s (6.6 L/min)

Kitchen Sink 0.16 l/s (9.6 L/min) 0.11 l/s (6.6 L/min)

Table 6.2 Fixture Types for Baseline and Proposed Building Performance

(Reference Source EPA 1992)


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A daily demand model has been developed to determine the volumes of waterrequired for each of the end uses and this shall form the basis of the baselinebuilding performance. This shall then be modified in accordance with all of thewater efficiency options proposed to achieve the proposed building performancemodel. At this stage these are identified as schematics, for ease of reference, andwhich shall be developed to include consumption figures as the building design isprogressed.

7.1.2. Irrigation

Irrigation needs can be drastically reduced by careful plant selection and design ofhard and soft landscaped areas. Drought resistant and native species typically useless water than imported products and innovative design methodologies such asJapanese gardens can meet aesthetic requirements of a scheme with lessdetrimental effects on water consumption.

Species Months

May

JuneJulyAugust

September

OctoberNovemberMarchApril

December

JanuaryFebruary

Palms (L/tree) 150 110 75

Ornamental trees (L/tree) 100 75 50

Shrubs (L/tree) 15 11 7.5

Hedges (L/tree) 10 8 5

Ornamental Grasses (L/m 2) 10 10 8

Lawns/Ground Cover (L/m 2) 12 10 8

Cactus/Succulents (L/plant) 8 6 4

Rock & Run Plants (L/plant) 10 8 6

Table 6.3 Irrigation Demands for a Variety of Trees, Plants and Shrubs

7.1.3. Swimming Pools

Swimming Pools can be effectively managed to use less water make up by use ofpool covers to prevent nighttime evaporation and hence reduce make up water

volumes, as this can be a substantial proportion of total potable water consumptionin a residential building.

7.2. Reuse of Graywater

Grey water commonly includes water from showers and bath tubs, wash hand basins andwashing machines. Kitchen sinks and dishwashers are usually excluded from grey waterrecycling systems since they contain food products and grease/fats which requires a moreintensive treatment process in order to be reused.


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7.3. Reuse of Wastewater

Wastewater commonly includes water from kitchen sinks and dishwashers but also mayinclude industrial processes or contain waste products such as oils/petrol as in the case ofcar washing bays etc.

Waste water and grey water treatment, as advocated in this case, requires treatment suchas screening, oil and grease removal, filtration and disinfection. The treated wastewatercan be utilized for one or more of the following:

Toilet flushing

Landscape Irrigation

7.4. Reuse of Recovered Condensate

Condensate recovery is relatively simple to achieve and only requires a dedicated drainpipe system from the air handling plant and fan coil units to a collection tank. The water isin a very pure form and can be used for the purposes of irrigation or for toilet flushing

without the need for further treatment, dependant upon storage periods.

7.5. Reuse of Fire Fighting System Test Water

The building fire fighting systems are required to be tested on a regular basis and thisrequires for water to be visibly discharged. It is proposed however that this can beaccomplished whilst still draining the discharge water to a dedicated collection drain whichis then directed back into the condensate collection tank for reuse.

Again this water is in a very clean form and should need only minimal treatment dependantupon the storage period.

7.6. Reuse of Pool Water Backwash

The swimming pool systems are required to be backwashed on a regular basis as part ofthe cleaning regime. It is proposed that this backwash water can be returned to thewastewater treatment plant for recycling and reuse.

The amount of treatment required depends upon the swimming pool treatment anddisinfection methods. Chlorination systems are not recommended and alternative systemssuch as diatomaceous earth systems are preferable and reduce the treatment requiredbefore re-use.

7.7. Reuse of Rainwater and Storm water

Whilst there is infrequent precipitation in the United Arab Emirates, it can be substantial involume. The water balance charts model the water systems on an annual basis todetermine the volumes of each element and thus will determine if this is worthwhile forcollection. It should be borne in mind that if collection tanks are already in place for othersystems such as condensate and firewater collection then there is little additionalexpenditure involved in redirecting storm water and rainwater pipes to this tank.


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Measured Period Average Annual Rainfall

1934-2001 107.16mm

Table 6.4 Annual Precipitation for the UAE

(Reference Source Dubai Meteorological Office)

Rainwater harvesting system require an area of collection and traditionally the roof areasrepresent the most common collection method and preferred option due to being the leastcontaminated collection area. It is however possible to improve the impact on the overallefficiency and sustainability by considering such areas as:

Car parks and driveways

Permeable paving/paved areas/terraces

These areas are typically many times greater than the roof area on the plot and thus thepotential for rainwater harvesting is considerable.

Whilst there are more contaminants associated with storm water and rainwater harvestingsystems these can be easily dealt with by fi ltration.

Some form of treatment is recommended even if the recycled water is only to be used forirrigation and toilet flushing. The most common of these are UV sterilization and reverseosmosis.

Based on the approximate irrigation requirements of the plot it has been estimated thatrainwater and storm water harvesting could contribute 10 days worth of irrigation waterrequirements annually.


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Please refer to the figures below for the baseline and the proposed water and drainageschematics:

Figure 6.5 Baseline Building Water and Drainage Schematic

Figure 6.6 Proposed Building Water and Drainage Schematic


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8. Item 7: Pollution Protection to Achieve Minimum Solar Impact

8.1. Faade Treatment

The faade design, detailing and construction will be carried out using green building

methodology, encompassing sustainability, environmental and energy design best practice.Three fundamental considerations will be reviewed throughout the design anddocumentation process to achieve this:

Materials sourcing sustainable and environmentally friendly materials whereverpossible.

Thermal performance ensuring that the facades prevent thermal heat gain to thebuilding in the most environmentally friendly, effective and efficient manner.

Internal environment ensuring that the facades allow sufficient indoor environmentalquality.

These design philosophies will be followed through during the procurement and constructionstages of the project to ensure the finished building achieves the green building designintent.

8.2. Architectural Solutions

8.2.1. External Shading

Recessed and projecting balconies, louvred screens and projecting canopies havebeen implemented to residential units where aesthetically appropriate to minimisedirect solar gain to the building faade.

At lower retail levels Streetwall Type 5, the retail faade is recessed such as toprovide increased solar shading to the ground floor north faade. Cantileveredterraces to the south of the site together with removable shade structures andplanting will provide protection to outdoor private and commune areas.

8.2.2. Landscape

Wherever possible provision for shade shall be incorporated within the landscapedesign to reduce solar impact. This will be achieved through strategic planting ofsemi-mature trees and the use of external shade structures. Materials for shadestructures to have a minimum S.R.I of 29 which will be assessed within 5 years ofoccupancy.

To further reduce solar gain large areas will be soft landscaped with grass andshrub planting. Species will be selected for their low water demand and will be fromthe Madinat Al Arab Development Control and Regulation Phase 1 Table 14.1Species Plant List.

To further reduce solar impact water features and swimming pools will beincorporated where practical.

Open grade paving systems will be used which incorporate high albedo materials toreduce heat absorption and solar gain and comply with a minimum S.R.I of 29.

Orientation and juxtaposition of adjacent buildings will also assist in thedetermination of locations for external seating and circulation.


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8.3. Use of Daylighting

Natural day lighting analyses has not been considered due to the low shading co-efficient ofthe glazing, the sun azimuth angles for Dubai and that direct sunlight to the building faadeis mitigated through use of projecting canopies, recessed and projecting balconies andlouvred screens.


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9. Item 8: Windows and Wall Insulation Specifications

9.1. Glazing Specs

All glazing will be specified to meet the minimum requirements of Decree 66 as per the

Dubai Municipality regulation. This has been selected by the Architect.

9.2. Wall Build-up

Following the analysis of data produced by the energy modelling it is anticipated the detaildesign of walls will be developed with the following variables

Increase or decrease in the performance of insulation,

Increase or decrease in the thickness of insulation,

Increase or decrease in the U values of adopted glazing,

Increase or decrease in the glass to solid facade ratio.


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10. Item 9: Include Provisions for Shading All Non-Roof Surfaces

Wherever possible, provision for shade shall be incorporated within the landscape design toreduce solar impact. This will be achieved through strategic planting of semi-mature trees and theuse of external shade structures. Materials for shade structures are to have a minimum SolarReflectance Index of 29 which is assessed within 5 years of occupancy.

To further reduce solar gain large areas will be soft landscaped with grass and shrub planting.Species will be selected for their low water demand and will be from the Madinat Al Arab Development Control and Regulation Phase 1 Table 14.1 Species Plant List.

To further reduce solar impact, water features will be incorporated.

Open grid paving systems will be used which incorporate high albedo materials to reduce heatabsorption and solar gain and comply with a minimum S.R.I of 29.

Orientation and juxtaposition of adjacent buildings will also assist in the determination of locationsfor external seating and circulation.


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11. Item 10: State Roof Area Vegetation for High Emissivity Levels

The cooling load through the roof of a building can be substantial; it can also be reduced howeverby means of two different technologies. These are green roofs and cool roofs and may be usedindividually or in combination to achieve the desired effect.

11.1. Green Roofs

Where possible roof areas are to be designed as green roofs with a minimum S.R.I of 29.Vegetation Species will be selected for their low water demand and will comply with theMadinat Al Arab Development Control and Regulation Phase 1 Table 14.1 SpeciesPlant List.

Roof gardens orgreen roofs onbuildings can play apart in improving theenergy performanceof the building. Roof

gardens can reducethe urban heat islandeffect, the overheatingof urban areas due toan increase in pavedand concreted areasin relation to greenareas. This reductionmay lead tosubstantial energy savings. Other important benefits include prolonging roof life, filtering ofairborne particles, sound insulation, creation of aesthetically pleasing landscapes and stormwater retention.

11.2. Cool Roofs

Where possible roofing materials will be specified with a solar reflex index to minimise heatgain through the roof and ceiling.

A cool roof is defined as a roof surface that has both high reflectivity and high emissivity.High reflectivity requires the surfacing material to reflect solar energy away from the surface.

Cool materials for roofs aregenerally bright white in colour,although non-white colours arestarting to become available.Roofs undergo significantexpansion and contraction asthey heat and cool throughoutthe day and a reflective roof

can reduce the amount ofthermal shock that occurs onthe roof surface and extend theroof life expectancy.

Cool Roofs must have high emissivity, allowing them to emit infrared energy. Unfortunatelybare metals and metallic coatings tend to have low emissivity and are not considered coolmaterials. Heat absorbed by the roof can also accelerate degradation by ultraviolet rays andwater.


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Cool roofs reduce the roof surface temperature thereby reducing the heat transferred intothe building below. This helps to reduce energy costs, improve occupant comfort, cutmaintenance costs, increase the life cycle of the roof, and reduce urban heat islands alongwith associated smog.

Table 10.1 Minimum Roof Solar Reflectance Indices

11.3. Wetted Roofs

Wetted roofs provide a means to cool a roof surface by evaporative cooling. The waterused can be recycled wastewater and can be further collected and reused. The cooledwater allows passive cooling and can be combined with both cool roofs and vegetated roofs.

Roof Specification Emissivity Reflectance SRI

Flat or low sloped roof High > 0.65 High > 0.85 >78


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APPENDIX A LEED AP Certification


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APPENDIX B Preliminary LEED Project Checklist


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APPENDIX C DCR Appendix C Deviation Schedule

Ref No. Requirement Design Deviation Technical Support


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APPENDIX D USGBC LEED Registration

From: USGBC Billing [mailto:[email protected]] Sent: Thursday, October 09, 2008 3:59 PMTo: < [email protected] >Subject: Thank you for Your LEED Project Registration

Dear Banafsheh,

Thank you for registering a LEED-NC 2.2 with the U.S. Green BuildingCouncil.Please save this confirmation notice for future reference. Yourorder is complete and you can now access your project via LEED-online atleedonline.usgbc.org.

Sale Order No. : 0010501680

Project Name : B4-A3

Project City : Dubai

Project State :

Project Country: AE

Primary Contact: Banafsheh

Your USGBC Project Access ID# is: 25212 55725 07585 2

The Project Access ID# provides project level access to the USGBC Website for project team members.Simply have team members add this Project Access ID# to their account at

As the project administrator you can also use LEED Online to add orinvite team members to your project - you do this at the Team Adminpage.

IMPORTANT Information: All Projects: All LEED projects are now required to achieve at least two (2) OptimizeEnergy Performance points. LEED for Homes and LEED for Neighborhood

Development projects are exempt from this requirement. This requirementwill be mandatory for all other projects registering after June 26th,2007. Projects registered prior to June 26th, 2007 will not be held tothis requirement; however USGBC encourages all LEED projects to utilizethe new mandate.

The two mandatory points will count towards the project's LEEDcertification.

Additional information can be found at .

Pilot Projects:Please visit to access pilot project resources and letter templates.

If you have any questions, please contact us at:

Phone: 1-800-795-1747Email: [email protected]

Thank you again,

environmentally sustainable design report

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